Overhead Stirrers
OHS 200 Advance Overhead Stirrer
Overhead Stirrer with 200 Ncm torque, double speed gear, 3.5″ TFT display, timer, Wi-Fi and USB connectivity able to stir up to 100 l.
Safety and resistance for your lab.
OHS 200 Advance is the VELP high-end overhead stirrer designed to guarantee the highest safety standards.
- The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time by stopping the stirring
- Safe start and stop knob operation and lock key avoid unintended start up and changes of the working conditions.
- Integrated vibration sensor with different levels of sensitivity will stop the operation and inform you to be sure that your OHS is stable and properly fixed.
OHS 200 Advance ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 200 Advance is the ideal solution for demanding applications operating with viscosities up to 100.000 mPa. The electronic controlled brushless motor of the OHS 200 Advance stirs up to 100 l with a maximum torque of 200 Ncm, and ensures the longest lifespan.
SpeedServoTMtorque compensation technology keeps the speed constant automatically adjusting to viscosity changes.
Thanks to the two speed gears it provides the best performance for both high torque and high volume operations:
- Speed gear 1: 6-400 rpm
- Speed gear 2: 30-2000 rpm
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable at throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed. This is a very important parameter for the reproducibility of your tests.
Precise torque measurement is available in the dedicated section of the display and you can a monitor in the real-time graph the evolution of the torque power during your test.
SmartChuck: shaft accommodation has never been so easy!
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Intuitive and precise
The OHS 200 Advance intuitive 3,5” TFT Display will guide you to precisely set your working conditions and get reproducible results. It shows the main information at a glance together with torque measurement on display for real-time information on viscosity change with a resolution of 1 Ncm.
Interact with the OHS Advance from the real-time graph showing speed, torque and temperature of your test.
The OHS 200 Advance works unattended thanks to the timer settable from 1min to 99.59h. Define and program your operating methods that are ideal for demanding tasks where ramps and interval operation are required.
Keep Temperature Under Control
The OHS Advance comes with a Pt100 temperature probe included in your package.
Constantly monitor the temperature of your reaction and set the instrument to reduce speed or interrupt the task if the temperature reaches a defined value. This is important when you want to avoid that exothermic reactions will interfere with your analysis!
The advantages of OHS Advance connectivity
The OHS Advance is the only overhead stirrers to offer the possibility of controlling and monitoring processes through Wi-Fi connection to VELP Ermes and through USB.
VELP Ermes cloud platform allows to control the OHS Advance from PC, smartphone and tablet through a simple and intuitive web interface. With this platform designed by VELP , it is possible to activate the stirring, set a timer, set a method (among those saved on the device), download and share reports with a click.
For the applications in the pharmaceutical, biotechnology and life science sectors, VELP Ermes can manage OHS Advance located in clean-rooms or other controlled environments, without the need of long safety procedures.
With the OHS/CotrollerSoftTM software, VELP offers the possibility to all laboratories that can’t benefit from cloud services, a valid alternative with USB connectivity.
| DISPLAY | 3,5″ Graphic TFT Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 100 L |
| SPEED GEARS | 2 |
| MAX TORQUE | 200 Ncm |
| STIRRING SPEED RANGE | 6-400 rpm 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 100.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| SAFETY VIBRATION SENSOR | Yes |
| TIMER | Yes |
| METHOD SETTING | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| EXTERNAL PROBE CONNECTION | Pt100 |
| TEMPERATURE MEASURING RANGE | -200 to +550 °C |
| TEMPERATURE RESOLUTION | 0.1 °C |
| INTERFACES | USB / WiFi |
| DIMENSIONS (WXHXD) | 90x315x235 mm (3.5×12.4×9.3 in) |
| WEIGHT | 4,6 kg (10,1 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 100 Advance Overhead Stirrer
Overhead Stirrer with 100 Ncm torque, digital display and timer able to stir up to 100 l.
Safety and resistance for your lab
OHS 100 Advance is the VELP high-end overhead stirrer designed to guarantee the highest safety standards.
- The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time by stopping the stirring
- Safe start and stop knob operation and lock key avoid unintended start up and changes of the working conditions.
- Integrated vibration sensor with different levels of sensitivity will stop the operation and inform you to be sure that your OHS is stable and properly fixed.
OHS 100 Advance ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power.
The OHS 100 Digital is the ideal solution for demanding applications operating with viscosities up to 70.000 mPa.
The electronic controlled brushless motor of the OHS 100 Digital stirs up to 100 l with a maximum torque of 100 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Precisely set the OHS 100 Digital from 30 to 1300 rpm
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Intuitive and precise
The OHS 100 Advance intuitive 3,5” TFT Display will guide you to precisely set your working conditions and get reproducible results. It shows the main information at a glance together with torque measurement on display for real-time information on viscosity change with a resolution of 1 Ncm.
Interact with the OHS Advance from the real-time graph showing speed, torque and temperature of your test.
The OHS 100 Advance works unattended thanks to the timer settable from 1min to 99.59h.
Define and program your operating methods that are ideal for demanding tasks where ramps and interval operation are required.
Keep Temperature Under Control
The OHS Advance comes with a Pt100 temperature probe included in your package.
Constantly monitor the temperature of your reaction and set the instrument to reduce speed or interrupt the task if the temperature reaches a defined value. This is important when you want to avoid that exothermic reactions will interfere with your analysis.
The advantages of OHS Advance connectivity
The OHS Advance is the only overhead stirrers to offer the possibility of controlling and monitoring processes through Wi-Fi connection to VELP Ermes and through USB.
VELP Ermes cloud platform allows to control the OHS Advance from PC, smartphone and tablet through a simple and intuitive web interface. With this platform designed by VELP , it is possible to activate the stirring, set a timer, set a method (among those saved on the device), download and share reports with a click.
For the applications in the pharmaceutical, biotechnology and life science sectors, VELP Ermes can manage OHS Advance located in clean-rooms or other controlled environments, without the need of long safety procedures.
With the OHS/CotrollerSoftTM software, VELP offers the possibility to all laboratories that can’t benefit from cloud services, a valid alternative with USB connectivity.
| DISPLAY | 3,5″ Graphic TFT Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 100 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 100 Ncm |
| STIRRING SPEED RANGE | 30-1300 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 70.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| SAFETY VIBRATION SENSOR | Yes |
| TIMER | Yes |
| METHOD SETTING | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| EXTERNAL PROBE CONNECTION | Pt100 |
| TEMPERATURE MEASURING RANGE | -200 to +550 °C |
| TEMPERATURE RESOLUTION | 0.1 °C |
| INTERFACES | USB / WiFi |
| DIMENSIONS (WXHXD) | 90x315x235 mm (3.5×12.4×9.3 in) |
| WEIGHT | 4,6 kg (10,1 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 60 Advance Overhead Stirrer
Overhead Stirrer with 60 Ncm torque, digital display and timer able to stir up to 40 l.
Safety and resistance for your lab.
OHS 60 Digital is designed to guarantee the highest safety standards. The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time and stop stirring for maximum safety in your lab.
- Safe start and stop knob operation and lock key avoid unintended stat up and changes of the working conditions.
OHS 60 Digital ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 60 Advance is the ideal solution for demanding applications operating with viscosities up to 50.000 mPa.
The electronic controlled brushless motor of the OHS 60 Advance stirs up to 40 l (H2O) with a maximum torque of 60 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Set the OHS 60 Advance electronic speed control from 30 to 2000 rpm.
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Intuitive and precise
The OHS 60 Advance intuitive 3,5” TFT Display will guide you to precisely set your working conditions and get reproducible results. It shows the main information at a glance together with torque measurement on display for real-time information on viscosity change with a resolution of 1 Ncm.
Interact with the OHS Advance from the real-time graph showing speed, torque and temperature of your test.
The OHS 60 Advance works unattended thanks to the timer settable from 1min to 99.59h. Define and program your operating methods that are ideal for demanding tasks where ramps and interval operation are required.
Keep Temperature Under Control
The OHS Advance comes with a Pt100 temperature probe included in your package.
Constantly monitor the temperature of your reaction and set the instrument to reduce speed or interrupt the task if the temperature reaches a defined value. This is important when you want to avoid that exothermic reactions will interfere with your analysis.
The advantages of OHS Advance connectivity
The OHS Advance is the only overhead stirrers to offer the possibility of controlling and monitoring processes through Wi-Fi connection to VELP Ermes and through USB.
VELP Ermes cloud platform allows to control the OHS Advance from PC, smartphone and tablet through a simple and intuitive web interface. With this platform designed by VELP, it is possible to activate the stirring, set a timer, set a method (among those saved on the device), download and share reports with a click.
For the applications in the pharmaceutical, biotechnology and life science sectors, VELP Ermes can manage OHS Advance located in clean-rooms or other controlled environments, without the need of long safety procedures.
With the OHS/CotrollerSoftTM software, VELP offers the possibility to all laboratories that can’t benefit from cloud services, a valid alternative with USB connectivity.
| DISPLAY | 3,5″ Graphic TFT Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 40 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 60 Ncm |
| STIRRING SPEED RANGE | 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 50.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| SAFETY VIBRATION SENSOR | Yes |
| TIMER | Yes |
| METHOD SETTING | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| EXTERNAL PROBE CONNECTION | Pt100 |
| TEMPERATURE MEASURING RANGE | -200 to +550 °C |
| TEMPERATURE RESOLUTION | 0.1 °C |
| INTERFACES | USB / WiFi |
| DIMENSIONS (WXHXD) | 90x315x235 mm (3.5×12.4×9.3 in) |
| WEIGHT | 4,6 kg (10,1 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 200 Digital Overhead Stirrer
Overhead Stirrer with 200 Ncm torque, double speed gear, digital display and timer able to stir up to 100 l.
Safety and resistance for your lab.
OHS 200 Digital is designed to guarantee the highest safety standards. The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time and stop stirring for maximum safety in your lab.
- Safe start and stop knob operation and lock key avoid unintended stat up and changes of the working conditions.
OHS 200 Digital ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 100 Advance is the ideal solution for demanding applications operating with viscosities up to 70.000 mPa.
The electronic controlled brushless motor of the OHS 100 Advance stirs up to 100 l (H2O) with a maximum torque of 100 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Set the OHS 100 Advance electronic speed control from 30 to 1300 rpm.
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Easy-to-use and precise
All the necessary information are available at a glance and the dedicated Torque Display with 4 LED segments informs about viscosity changes during the operation.
The OHS Digital integrated timer allows unattended operations. Program your OHS Digital from 1min to 99.59h and walk away!
USB interface facilitates software updates if required.
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 100 L |
| SPEED GEARS | 2 |
| MAX TORQUE | 200 Ncm |
| STIRRING SPEED RANGE | 6-400 rpm 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 100.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| INTERFACES | USB |
| DIMENSIONS (WXHXD) | 90x315x235 mm (3.5×12.4×9.3 in) |
| WEIGHT | 4,6 kg (10,1 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 100 Digital Overhead Stirrer
Overhead Stirrer with 100 Ncm torque, digital display and timer able to stir up to 100 l.
Safety and resistance for your lab
OHS 100 Advance is the VELP high-end overhead stirrer designed to guarantee the highest safety standards.
- The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time by stopping the stirring
- Safe start and stop knob operation and lock key avoid unintended start up and changes of the working conditions.
- Integrated vibration sensor with different levels of sensitivity will stop the operation and inform you to be sure that your OHS is stable and properly fixed.
OHS 100 Advance ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power.
The OHS 100 Digital is the ideal solution for demanding applications operating with viscosities up to 70.000 mPa.
The electronic controlled brushless motor of the OHS 100 Digital stirs up to 100 l with a maximum torque of 100 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Precisely set the OHS 100 Digital from 30 to 1300 rpm
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Easy-to-use and precise
All the necessary information are available at a glance and the dedicated Torque Display with 4 LED segments informs about viscosity changes during the operation.
The OHS Digital integrated timer allows unattended operations. Program your OHS Digital from 1min to 99.59h and walk away!
USB interface facilitates software updates if required.
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 100 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 100 Ncm |
| STIRRING SPEED RANGE | 30-1300 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 70.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| INTERFACES | USB |
| DIMENSIONS (WXHXD) | 90x285x235 mm (3.5×11.2×9.3 in) |
| WEIGHT | 4,1 kg (9 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 60 Digital Overhead Stirrer
Overhead Stirrer with 60 Ncm torque, digital display and timer able to stir up to 40 l.
Safety and resistance for your lab.
OHS 60 Digital is designed to guarantee the highest safety standards. The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time and stop stirring for maximum safety in your lab.
- Safe start and stop knob operation and lock key avoid unintended stat up and changes of the working conditions.
OHS 60 Digital ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 60 Advance is the ideal solution for demanding applications operating with viscosities up to 50.000 mPa.
The electronic controlled brushless motor of the OHS 60 Advance stirs up to 40 l (H2O) with a maximum torque of 60 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Set the OHS 60 Advance electronic speed control from 30 to 2000 rpm.
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Easy-to-use and precise
All the necessary information are available at a glance and the dedicated Torque Display with 4 LED segments informs about viscosity changes during the operation.
The OHS Digital integrated timer allows unattended operations. Program your OHS Digital from 1min to 99.59h and walk away!
USB interface facilitates software updates if required.
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 40 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 60 Ncm |
| STIRRING SPEED RANGE | 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 50.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| INTERFACES | USB |
| DIMENSIONS (WXHXD) | 90x285x235 mm (3.5×11.2×9.3 in) |
| WEIGHT | 4,1 kg (9 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 40 Digital Overhead Stirrer
Overhead Stirrer with 40 Ncm torque, digital display and timer able to stir up to 25 l.
Safety and resistance for your lab.
OHS 40 Digital is designed to guarantee the highest safety standards. The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time and stop stirring for maximum safety in your lab.
- Safe start and stop knob operation and lock key avoid unintended stat up and changes of the working conditions.
OHS 40 Digital ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 40 Digital is the ideal solution for demanding applications operating with viscosities up to 25.000 mPa.
The electronic controlled brushless motor of the OHS 40 Digital stirs up to 25 l with a maximum torque of 40 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Precisely set the OHS 40 Digital from 30 to 2000 rpm
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Digital SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Easy-to-use and precise
All the necessary information are available at a glance and the dedicated Torque Display with 4 LED segments informs about viscosity changes during the operation.
The OHS Digital integrated timer allows unattended operations. Program your OHS Digital from 1min to 99.59h and walk away!
USB interface facilitates software updates if required.
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 25 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 40 Ncm |
| STIRRING SPEED RANGE | 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 25.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| INTERFACES | USB |
| DIMENSIONS (WXHXD) | 90x285x235 mm (3.5×11.2×9.3 in) |
| WEIGHT | 4,1 kg (9 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
OHS 20 Digital Overhead Stirrer
Overhead Stirrer with 20 Ncm torque, digital display and timer able to stir up to 25 l.
Safety and resistance for your lab.
OHS 20 Digital is designed to guarantee the highest safety standards. The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
- Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time and stop stirring for maximum safety in your lab.
- Safe start and stop knob operation and lock key avoid unintended stat up and changes of the working conditions.
OHS 20 Digital ensures continuous operation and is backed by 3 Years Warranty extension.
Best-in-class Stirring Power
The OHS 20 Digital is the ideal solution for demanding applications operating with viscosities up to 10.000 mPa.
The electronic controlled brushless motor of the OHS 20 Digital stirs up to 25 l with a maximum torque of 20 Ncm, and ensures the longest lifespan.
SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes. Precisely set the OHS 20 Digital from 30 to 2000 rpm
Constant torque at any speed
The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.
The torque is stable throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed.
This is a very important parameter for the reproducibility of your tests.
SmartChuck™ simplifies shaft accommodation
The OHS Digital SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.
With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.
The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.
Easy-to-use and precise
All the necessary information are available at a glance and the dedicated Torque Display with 4 LED segments informs about viscosity changes during the operation.
The OHS Digital integrated timer allows unattended operations. Program your OHS Digital from 1min to 99.59h and walk away!
USB interface facilitates software updates if required.
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| MOTOR | Brushless DC |
| STIRRING VOLUME (H2O) | Up to 25 L |
| SPEED GEARS | 1 |
| MAX TORQUE | 20 Ncm |
| STIRRING SPEED RANGE | 30-2000 rpm |
| SPEED ACCURACY | 1 rpm |
| SPEED CONTROL | Digital |
| MAX VISCOSITY | 10.000 mPa*s |
| TORQUE COMPENSATION | SpeedServo™ |
| CHUCK RANGE | Ø from 1 to 13 mm |
| SHAFT DIAMATER PASS-THROUGH | up to 8.5mm |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| INTERFACES | USB |
| DIMENSIONS (WXHXD) | 90x285x235 mm (3.5×11.2×9.3 in) |
| WEIGHT | 4,1 kg (9 lb) |
| PROTECTION CLASS DIN EN 60529 | IP 54 |
CONTROLLER Advance
The innovative solution to manage and monitor the shaft rotation speed of brushless motors in lab-scale reactor systems of up to 100 L provided with a 3.5″ TFT display, Data logging and Wi-Fi connectivity.
The innovative controller for chemical reaction system.
Glass reaction systems are used in a wide variety of industrial fields to control chemical processes to transform the raw materials into the desired final products. Reactors may have a complex structure to face different operating conditions in terms of the nature of the chemicals involved (reagents and reaction products) and physical operating conditions.
The CONTROLLER Advance is designed to manage and monitor the shaft rotation speed of brushless motors in pilot-plant reactor systems of up to 100 L. The CONTROLLER Advance supports reactions for:
- Stirring: precisely set the desired speed (rpm) and the stirring direction
- Torque: precisely monitor the changes in the viscosity of the reaction mixture
- Temperature: temperature measurement of the reaction through PT100 connection
Easy-to-use and programmable
- The TFT 3.5” Display shows all setting information at a glance
- Reat time torque, speed and temperature graph monitoring
- Precise digital speed control: ± 1 rpm
- Intuitive knob to navigate the menu and start stop operations
- PT100 Probe connection for temperature monitoring (-200°C To +550°C)
- Programmable methods to set up to 4 time/speed ramps
- Timer for unattended operations
- Easy CW/CCW stirring direction changes
- Safety lock button to avoid unintentional changes with settings
Exclusive connectivity options for a total control of the reactions
The CONTROLLER Advance Wi-Fi connectivity to VELP Ermes cloud platform provides exclusive advantages:
- Remote control and real-time monitoring of multiple instruments
- Access from Pc, tablet and smartphone
- Enhanced service support
- Datalog and reporting in multiple formats
- Software updates
To all laboratories that can’t benefit from cloud services, VELP offers a valid alternative with USB connectivity. The USB interface allows the controller to be connected to a PC via the OHS/CONTROLLERSoftTM software for constant data logging, monitoring and switching the controller on and off.
| DISPLAY | 3,5″ Graphic TFT Display |
| USER INTERFACE | Digital |
| TORQUE COMPENSATION | SpeedServo™ |
| STIRRING DIRECTION | Clockwise/Counterclockwise |
| SPEED ACCURACY | 1 rpm step |
| SPEED CONTROL | Digital |
| FIXING SYSTEM | Shafts up to Ø 20mm, on both sides |
| SAFETY VIBRATION SENSOR | Yes |
| TIMER | Yes |
| METHODS | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| EXTERNAL PROBE CONNECTION | Yes,Pt100 |
| TEMPERATURE MEASURING RANGE | -200 to 550 °C |
| TEMPERATURE RESOLUTION | 0.1 °C |
| CONNECTIVITY | USB / Wi-Fi |
| VELP ERMES CLOUD PLATFORM | Yes |
| OHS/CONTROLLER SOFT | Yes |
| DIMENSIONS (WXHXD) | 90x180x170 mm (3.54×7.10×6.70 in) |
| WEIGHT | 2,5 kg (5,51 lb) |
CONTROLLER Digital
The entry-level solution to manage and monitor the shaft rotation speed of brushless motors in lab-scale reactor systems of up to 100 L.
The entry-level controller for chemical reaction systems.
Glass reaction systems are used in a wide variety of industrial fields to control chemical processes to transform the raw materials into the desired final products. Reactors may have a complex structure to face different operating conditions in terms of the nature of the chemicals involved (reagents and reaction products) and physical operating conditions.
The CONTROLLER Digital manages and monitors the shaft rotation speed of brushless motors in pilot-plant reactor systems of up to 100 L. The CONTROLLER Digital supports reactions for:
- Stirring: precisely set the desired speed (rpm) and the stirring direction
- Torque: monitor the viscosity of the reaction mixture with LED indicators
Intuitive and reliable
- Digital display for precisely set stirring speed
- Torque monitoring through the dedicated 4 segment Led display
- Precise speed control: ± 1 rpm
- Intuitive knob to navigate the menu and start stop operations
- Timer for unattended operations
- Easy CW/CCW stirring direction changes
- Safety lock button to avoid unintentional changes with settings
| DISPLAY | Digital Display |
| USER INTERFACE | Digital |
| TORQUE COMPENSATION | SpeedServo™ |
| STIRRING DIRECTION | Clockwise/Counterclockwise |
| SPEED ACCURACY | 1 rpm step |
| SPEED CONTROL | Digital |
| FIXING SYSTEM | Shafts up to Ø 20mm, on both sides |
| TIMER | Yes |
| LOCK OF THE INSTRUMENT | Yes |
| CONNECTIVITY | USB, only for software update |
| DIMENSIONS (WXHXD) | 90x180x170 mm (3.54×7.10×6.70 in) |
| WEIGHT | 2,5 kg (5,51 lb) |
DLH Digital Overhead Stirrer
Digital overhead stirrer with 80 Ncm torque, digital display and timer able to stir up to 40 L.
Safe and Easy to use.
DLH guides the user through a bright and easy to read display. All the main parameters, including the set speed, actual speed, torque and timer are visible at a glance.
The instrument is also equipped with a digital timer that can be set up to 999:59 minutes with automatic switch-off.
The DLH is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, DLH is your best choice for medium-high viscosity samples.
Powerful Stirring
VELP DLH ensures a smooth start and vigorous agitation even at maximum speed!
DLH can reach speeds of 2000 rpm and stir up to 40 litres. The device can manage medium-high viscosity, with a maximum of 50,000 mPa*s.
In addition, DLH offers a feedback system, which ensures constant speed even with varying viscosity.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
DLH is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer and epoxy painted aluminum alloy |
| CHUCK RANGE: | 1 – 10 mm |
| VISUALIZATION OF SET SPEED: | display LCD |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 190 W |
| WEIGHT: | 3.0 Kg |
| DIMENSIONS (WXHXD): | 80x230x196 mm |
| ELECTRONIC SPEED REGULATION: | 50 – 2000 rpm |
| STIRRING VOLUME MAX (H2O): | 40 liters |
| MAX VISCOSITY: | 50000 (mPa*s)* |
| TORQUE MAX: | 80 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
(*) mPa.s = 1 centipoise
DLS Digital Overhead Stirrer
Digital overhead stirrer with 40 Ncm torque, digital display and timer able to stir up to 25 L.
Safe and Easy to use.
DLS guides the user through a bright and easy to read display. All the main parameters, including the set speed, actual speed, torque and timer are visible at a glance.
The instrument is also equipped with a digital timer that can be set up to 999:59 minutes with automatic switch-off.
The DLS is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, DLS is your best choice for medium-high viscosity samples.
Powerful Stirring
VELP DLS ensures a smooth start and vigorous agitation even at maximum speed!
DLS can reach speeds of 2000 rpm and stir up to 25 litres. The device can manage medium-high viscosity, with a maximum of 25,000 mPa*s.
In addition, DLS offers a feedback system, which ensures constant speed even with varying viscosity.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
DLS is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer and epoxy painted aluminum alloy |
| CHUCK RANGE: | 1 – 10 mm |
| VISUALIZATION OF SET SPEED: | display LCD |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 120 W |
| WEIGHT: | 2.5 Kg |
| DIMENSIONS (WXHXD): | 80x215x196 mm |
| ELECTRONIC SPEED REGULATION: | 50 – 2000 rpm |
| STIRRING VOLUME MAX (H2O): | 25 liters |
| MAX VISCOSITY: | 25000 (mPa*s)* |
| TORQUE MAX: | 40 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
(*) mPa.s = 1 centipoise
PW Overhead Stirrer
Analogical overhead stirrer with 120 Ncm torque able to stir up to 70 L.
Powerful, Safe and Easy to use.
The PW is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, PW is your best choice for high viscosity samples.
VELP PW ensures a smooth start and vigorous agitation even at maximum speed!
PW can reach speeds of 1200 rpm and stir up to 70 litres. The device can manage high viscosity, with a maximum of 100,000 mPa*s.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
PW is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer and epoxy painted aluminum alloy |
| CHUCK RANGE: | 1 – 10 mm |
| VISUALIZATION OF EFFECTIVE SPEED: | graduated scale |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 190 W |
| WEIGHT: | 2.9 Kg (6.4 lb) |
| DIMENSIONS (WXHXD) | 80x230x196 mm ( 3.1x9x7.7 in) |
| ELECTRONIC SPEED REGULATION: | 20 – 1200 rpm |
| MAX VISCOSITY: | 100000 (mPa*s)* |
| STIRRING VOLUME MAX (H2O): | 70 liters |
| TORQUE MAX: | 120 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
(*) mPa.s = 1 centipoise
LH Overhead Stirrer
Analogical overhead stirrer with 80 Ncm torque able to stir up to 40 L.
Powerful, Safe and Easy to use.
The LH is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, LH is your best choice for medium-high viscosity samples.
VELP LH ensures a smooth start and vigorous agitation even at maximum speed!
LH can reach speeds of 2000 rpm and stir up to 40 litres. The device can manage high viscosity, with a maximum of 50,000 mPa*s.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
LH is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer and epoxy painted aluminum alloy |
| VISUALIZATION OF EFFECTIVE SPEED: | graduated scale |
| CHUCK RANGE: | 1 – 10 mm |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 190 W |
| WEIGHT: | 2.9 Kg |
| DIMENSIONS (WXHXD): | 80x230x196 mm |
| STIRRING SPEED: | 50 – 2000 rpm |
| STIRRING VOLUME MAX (H2O): | 40 liters |
| MAX VISCOSITY: | 50000 (mPa*s)* |
| TORQUE MAX: | 80 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
(*) mPa.s = 1 centipoise
LS Overhead Stirrer
Analogical overhead stirrer with 40 Ncm torque able to stir up to 25 L.
Powerful, Safe and Easy to use.
The LS is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, LS is your best choice for medium viscosity samples.
VELP LS ensures a smooth start and vigorous agitation even at maximum speed!
LS can reach speeds of 2000 rpm and stir up to 25 litres. The device can manage viscosity, with a maximum of 25,000 mPa*s.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
LS is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer and epoxy painted aluminum alloy |
| VISUALIZATION OF EFFECTIVE SPEED: | graduated scale |
| CHUCK RANGE: | 1 – 10 mm |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 120 W |
| WEIGHT: | 2.3 Kg (5.0 lb) |
| DIMENSION (WXHXD): | 80x215x196 mm (3.1×8.5×7.7 in) |
| STIRRING SPEED: | 50 – 2000 rpm |
| STIRRING VOLUME MAX (H2O): | 25 liters |
| MAX VISCOSITY: | 25000 (mPa*s)* |
| TORQUE MAX: | 40 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
(*) mPa.s = 1 centipoise
ES Overhead Stirrer
Analogical overhead stirrer with 15 Ncm torque able to stir up to 15 L.
Powerful, Safe and Easy to use.
The ES is an intuitive overhead stirrer ensuring safety with overload, over-current and overheating protection.
Easy to install, resistant and with a small footprint, ES is your best choice for low viscosity samples.
VELP ES ensures a smooth start and vigorous agitation even at maximum speed!
ES can reach speeds of 1300 rpm and stir up to 15 litres. The device can manage viscosity, with a maximum of 1000 mPa*s.
The easy chuck is easy to close and can accommodate shafts with up to 10 mm diameter and does not require any tool.
Resistant and lightweight
ES is designed to offer a long lifespan even in challenging operating conditions.
The special technopolymer structure and the IP 40 guarantee good chemical resistance and special handling, being among the lightest on the market.
The robust motor guarantees continuous operations over the years, without additional maintenance costs.
| CONSTRUCTION MATERIAL: | technopolymer |
| STIRRING SPEED RPM: | graduated scale |
| CHUCK RANGE HOLE: | 1 – 10 mm |
| ELECTRONIC PROTECTION RATING CEI EN 60529: | IP 40 |
| POWER: | 30 W |
| WEIGHT: | 1.3 Kg (2.8 lb) |
| DIMENSIONS (WXHXD): | 80x160x200 mm (3.1×6.3×7.9 in) |
| STIRRING SPEED: | 50 – 1300 rpm |
| STIRRING VOLUME MAX (H2O): | 15 liters |
| MAX VISCOSITY: | 1000 (mPa*s)* |
| TORQUE MAX: | 15 Ncm |
| ALLOWED ROOM TEMPERATURE: | 0 – 40 °C |
