Instruments

Overhead stirrer designed for simple stirring tasks for quantities up to 15 l (H₂O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/30 to 2000 rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation

Universally used strong overhead stirrer for quantities up to 40l (H₂O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/30 to 2000rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display

• Technical improvements on the trusted RW20 series design, mechanically controlled
• with digital display
• robust, ergonomic design
• constant power-drive
• two speed ranges for universal use from 60rpm to 2000rpm
• hollow-shafted chuck for rotor shaft height adjustment (only when stationary)

The sealing rings on these bearings ensure a perfect sealing. The ground joint no longer sticks, the danger of breaking is reduced and the cone can be removed easily from the socket. A special gasket made of PTFE and an FPM o-ring which is compressed by a GL screw cap provide a good sealing of the stirrer shaft. This gasket can be exchanged after wearing. Suitable for vacuum, perfect bearing for stainless steel, glass and BOLA Stirrer Shafts.

Ideal for all standard stirring tasks. They are designed to mix and disperse media that require non-reproducible results in high-viscosity applications.

• Indication of torque tendencies to monitor viscosity changes
• Digital 2.4" display for ease of operation
• Constant speed even under changing loads
• Safe start and stop of operation via slide touch panel
• Minimum noise level at maximum power (<50 dB)

High speed laboratory stirrer designed for intensive stirring tasks for quantities up to 20l (H2O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/150 to 6000rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Cone seat for precision shaft
• Overload protection
• Short-term overload operation

Universal laboratory stirrer designed for simple stirring tasks for quantities up to 25l (H2O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/30 to 2000rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation

These powerful overhead stirrers convince with perfect basic functionalities. They have a compact, space-saving design and are easy-to-use.

• Operation via a stable rotary knob
• Hardened glass display for maximum visibility and chemical resistance
• Display clearly shows the rotational speed
• Regular software updates can be made rapidly and simply via the USB interface
• Chemical resistant housing
• Microprocessor-controlled speed governor for constant rotational speed, even with changes in viscosity
• 10 years warranty

These powerful overhead stirrers convince with perfect basic functionalities. They have a compact, space-saving design and are easy-to-use.

• Operation via a stable rotary knob
• Hardened glass display for maximum visibility and chemical resistance
• Display clearly shows the rotational speed
• Regular software updates can be made rapidly and simply via the USB interface
• Chemical resistant housing
• Microprocessor-controlled speed governor for constant rotational speed, even with changes in viscosity
• 10 years warranty

Combination of a borosilicate glass piece with ground joint, an interior PTFE shaft guide with integrated special gasket and a GL screw cap made of PPS. The special gasket made of PTFE and an FPM o-ring which is compressed by a GL screw cap provide a good sealing of the stirrer shaft. This gasket can be exchanged after wearing. Suitable for vacuum, perfect bearing for stirrer shafts made of stainless steel, glass and for BOLA Stirrer Shafts.

R 60: Only for use with EUROSTAR 20 / 40 / 60 / 100 / 200 / RW 20, excluding EUROSTAR 20 high speed digital and control.

R 60.1: For MINISTAR 20 / 40 / 80 digital and control, MICROSTAR series and NANOSTAR 7.5 digital.

Powerful, robust overhead stirrers with digital display, electronic speed control and integrated PT100 temperature probe. With vibration sensor, timer and overload, overtemperature and overcurrent protection. The connection via WLAN to the VELP Ermes Cloud Platform is used for uploading, managing, monitoring and exchanging results and parameters. Access to the devices is possible via PC, Smartphone and Tablet.

• Direct measurement of temperature in the medium via PT100 sensor
• Stable torque over the entire speed range with automatic compensation
• Torque indicated in display
• 3.5" TFT display
• Timer
• Key lock
• Brushless, quiet motor
• Easy rotor change without tools
• Various methods programmable
• USB interface for installing software updates and process documentation

Powerful, robust overhead stirrers with display and electronic speed control. With integrated timer and overload, overtemperature and overcurrent protection.

• For high viscosities up to 100000 mPas or large volumes up to 100 l
• With 2 speed gears
• Stable torque over the entire speed range with automatic compensation
• Torque indication in the display
• LED display
• Timer
• Key lock
• Brushless, quiet motor
• Rotor change without tools
• USB interface for installing software updates

Powerful laboratory stirrer for highly viscous applications and intensive mixing for quantities up to 100 l (H₂O). It automatically adjusts the speed through microprocessor controlled technology. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display
• Multilingual TFT display
• Detachable remote control
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Reverse function
• Timer function
• Adjustable safety circuit
• Locked function
• Connection for external temperature sensor

Powerful laboratory stirrer for highly viscous applications and intensive mixing for quantities up to 100 l (H₂O). It automatically adjusts the speed through microprocessor controlled technology. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display

High speed laboratory stirrer designed with a removable wireless controller and a digital TFT display. It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/150 - 6000 rpm. The stirrer comes equipped with a RS 232 and a USB interface to control and document all parameters, and an update of the current firmware. An integrated torque trend display is provided for the measurement of viscosity changes. The included precision stirrer shaft is 280 mm long and has a maximum immersion depth of 220 mm.

• Multilingual TFT display
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Timer function
• Adjustable safety circuit
• Locked function
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection

Extremely powerful laboratory stirrer for highly viscous applications for quantities up to 100l (H₂O). It is designed with a removable wireless controller and a digital TFT display. It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/4 to 530rpm (two speed ranges). The stirrer comes equipped with a RS 232 and a USB interface to control and document all parameters. An integrated torque trend display is provided for the measurement of viscosity changes. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Multilingual TFT display
• Detachable remote control
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Timer function
• Adjustable safety circuit
• Locked function
• Infinitely adjustable speed
• Overload protection
• Short-term overload operation

Extremely powerful laboratory stirrer for highly viscous applications and intensive mixing for quantities up to 100l (H₂O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/6 to 2000rpm (two speed ranges). Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

EUROSTAR 200 digital:

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display

• Multilingual TFT display
• Detachable remote control
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Timer function
• Adjustable safety circuit
• Locked function

Powerful laboratory stirrer for highly viscous applications and intensive mixing for quantities up to 150 l (H₂O). It automatically adjusts the speed through microprocessor controlled technology. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

EUROSTAR 400 digital:

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display

• Multilingual TFT display
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Timer function
• Adjustable safety circuit
• Locked function
• Connection for external temperature sensor

Universally used strong overhead stirrer for quantities up to 40l (H₂O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/30 to 2000rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display
• Multilingual TFT display
• Programmable functions
• Integrated temperature measurement
• Interval operation
• Timer function
• Adjustable safety circuit
• Locked function
• H 67.60 temperature sensor and WH 11 WiCo holder included in delivery

This powerful overhead stirrer convinces with perfect basic functionalities. It has a compact, space-saving design and is easy-to-use.

• Operation via a stable rotary knob
• Hardened glass display for maximum visibility and chemical resistance
• Display clearly shows the rotational speed
• Regular software updates can be made rapidly and simply via the USB interface
• Chemical resistant housing
• Microprocessor-controlled speed governor for constant rotational speed, even with changes in viscosity

Powerful, mechanically controlled laboratory stirrer designed for highly viscous applications for quantities up to 80l (H₂O). It is suitable for intensive mixing for use in laboratories and pilot plants. The stirrer comes equipped with a protection for overheating of the motor by means of self-locking temperature limiter. Additionally, to secure bowls, a stirring shaft protection and clamping fixture are optionally available.

• Digital speed display
• Infinitely adjustable speed in two speed ranges
• Push-through agitator shafts
• Overload protection
• Error code display
• Robust, ergonomic design
• Quiet operation
• With constant power-drive

Universal laboratory stirrer designed for simple stirring tasks for quantities up to 200l (H₂O). It automatically adjusts the speed through microprocessor controlled technology within the speed range of 0/30 to 2000rpm. Safety circuits installed ensures automatic cut-off in an anti-stall or overload conditions. Continuous comparison of shaft speed to desired speed is maintained and variations are adjusted automatically. This guarantees a constant speed even with changes in viscosities of the sample.

• Digital speed display
• Infinitely adjustable speed
• Push-through agitator shafts
• Overload protection
• Short-term overload operation
• Slim casing
• Quiet operation
• Error code display

Useful extension to the existing range of Bola stirrer shafts. The additional blades can optionally be fixed in your preferred position on every stirrer shaft with diameter 8,10 or 16 mm (a flat spanner is included). The stirrer blades are entirely made of PTFE, the mounting devices are made of a special PTFE-compound. A high chemical and thermical (-200 to +250 °C) resistance is assured. This "building block system" allows the user to define a stirrer of their own special requirements.

The stirrer shafts consist of a PTFE-jacketed, stainless steel shaft and a stirrer paddle made of solid PTFE. The stainless steel core assures stability of the stirrer shaft and allows safe attachment of the stirrer chuck. Thanks to the thick PTFE coat and the paddle made of solid PTFE, the medium will only come into contact with PTFE. High chemical resistance makes it almost universally suitable. PTFE is extremely nonstick so that residues are repelled from shaft and paddle. The stirrer shafts are similar in size to (KPG) glass stirring rods and are therefore interchangeable easily.

Operating temperature: -200°C to +250°C

Additional sizes and accessories are available on request.
Information on the mixing effects of the different stirring geometries can be found in the descriptions of the stainless steel stirring rotors.
Recommended for low speed operations.

The test kits have been specially developed for the analysis of boiler, cooling and service water.

Powerful overhead stirrers in a compact design for special applications.

• Hardened glass display for maximum visibility and chemical resistance
• Vibration sensors detect deviations from permissible thresholds and automatically stop the process
• USB interface, e.g. for documenting parameters or installing firmware updates
• Bluetooth interface
• Easy connection to labworldsoft^®
• Temperature measurement directly in the medium with PT1000 temperature sensor
• Temperature reading on display
• Chemical resistant housing
• Continuously adjustable speed
• Microprocessor-controlled speed governor for constant rotational speed, even with changes in viscosity
• Key lock function
• Integrated timer
• 10 years warranty

Powerful overhead stirrers in a compact design for special applications.

• Hardened glass display for maximum visibility and chemical resistance
• Vibration sensors detect deviations from permissible thresholds and automatically stop the process
• USB interface, e.g. for documenting parameters or installing firmware updates
• Bluetooth interface
• Easy connection to labworldsoft^®
• Temperature measurement directly in the medium with PT1000 temperature sensor
• Temperature reading on display
• Chemical resistant housing
• Continuously adjustable speed
• Microprocessor-controlled speed governor for constant rotational speed, even with changes in viscosity
• Key lock function
• Integrated timer
• 10 years warranty

Ideal for all standard stirring tasks. They are designed to mix and disperse media that require non-reproducible results in high-viscosity applications.

• Indication of torque tendencies to monitor viscosity changes
• Digital 2.4" display for ease of operation
• Constant speed even under changing loads
• Safe start and stop of operation via slide touch panel
• Minimum noise level at maximum power (<50 dB)

The complete solution for powerless stirring and easy operation in the laboratory.

Scope of supply:Hei-TORQUE Silver: Hei-TORQUE Expert 100, Telescope stand, clamp
Hei-TORQUE Gold 1: Hei-TORQUE Precision 100, Telescope stand, clamp
Hei-TORQUE Gold 2: Hei-TORQUE Precision 200, Telescope stand, clamp
Hei-TORQUE Platinum: Hei-TORQUE Precision 400, Telescope stand, clamp

Ideal for demanding tasks which have to be reproducible and documentable. The large number of additional features and operation modes allows for a perfect adjustment to your individual application.

• Accurate torque indication shows any viscosity change
• Constant speed even under changing loads
• Rotation direction changeable for models Hei-TORQUE Precision 100/200/400
• Digital 3.2" display with easy operation (ramp function, saving of preprogrammed profiles, interval operation, displays rpm and torque graph life, timer with countdown and real time)
• All performance-related parameters can be set individually (intensity of the start operation, rotational and torque speed limit)
• Safe start and stop of operation via slide touch panel
• Minimum noise level at maximum power (<50 dB)
• RS 232 and USB interface

Ideal for demanding tasks which have to be reproducible and documentable. The large number of additional features and operation modes allows for a perfect adjustment to your individual application.

• Accurate torque indication shows any viscosity change
• Constant speed even under changing loads
• Rotation direction changeable for models Hei-TORQUE Precision 100/200/400
• Digital 3.2" display with easy operation (ramp function, saving of preprogrammed profiles, interval operation, displays rpm and torque graph life, timer with countdown and real time)
• All performance-related parameters can be set individually (intensity of the start operation, rotational and torque speed limit)
• Safe start and stop of operation via slide touch panel
• Minimum noise level at maximum power (<50 dB)
• RS 232 and USB interface

Ideal for demanding tasks which have to be reproducible and documentable. The large number of additional features and operation modes allows for a perfect adjustment to your individual application.

• Accurate torque indication shows any viscosity change
• Constant speed even under changing loads
• Rotation direction changeable for models Hei-TORQUE Precision 100/200/400
• Digital 3.2" display with easy operation (ramp function, saving of preprogrammed profiles, interval operation, displays rpm and torque graph life, timer with countdown and real time)
• All performance-related parameters can be set individually (intensity of the start operation, rotational and torque speed limit)
• Safe start and stop of operation via slide touch panel
• Minimum noise level at maximum power (<50 dB)
• RS 232 and USB interface

Robust overhead stirrers for low to high viscosity liquids. With overload, overtemperature and overcurrent protection.

• Stable torque over the entire speed range with automatic compensation on viscosity changes
• Electronic speed control
• Gentle start-up to avoid splashing and blistering
• Chemical resistant and corrosion protected housing
• Blocking detection with switch-off function
• No tool required for assembly of the stirring tool

High precision torque-measuring stirrer with direct display of the measured values for a wide range of applications. Especially suitable for product development, because precise measuring is taking place during the manufacturing process and the viscosity can be calculated via the user friendly display. Samples no longer have to be taken separately.

• Viscosity calculation
• Stepless adjustable speed
• With detachable remote control - Wireless Controller (WiCo)
• Powerful stirrer for highly viscous substances

Robust overhead stirrers for low to high viscosity liquids. With overload, overtemperature and overcurrent protection.

• Stable torque over the entire speed range with automatic compensation on viscosity changes
• Electronic speed control
• Gentle start-up to avoid splashing and blistering
• Chemical resistant and corrosion protected housing
• Blocking detection with switch-off function
• No tool required for assembly of the stirring tool

Suitable for VELP overhead stirrers and homogenisers. For stable mounting and low-vibration operation.

• Universal stand and telescopic stand compatible with all VELP overhead stirrers and the OV5 homogeniser
• Double rod stand compatible with the OV5 homogeniser