OHS 20 Digital Overhead Stirrer Velp Scientifica

OHS 20 Digital Overhead Stirrer Velp Scientifica

Product Description

The OHS 20 Digital overhead stirrer is designed to provide safety, durability, and ease of use in laboratory stirring applications. Built with a sealed housing and IP 54 protection rating, it ensures reliable operation even in demanding and aggressive environments.

To protect both the operator and the instrument, the OHS 20 Digital is equipped with integrated overload, overtemperature, and overcurrent safety alarms that automatically stop stirring when necessary. The safe start/stop knob and lock function further guarantee secure and controlled operation, preventing unintended startups or setting changes.

Compact and efficient, the OHS 20 Digital delivers up to 20 Ncm torque, making it suitable for low-viscosity samples with stirring volumes up to 25 liters (H₂O).

Key Features

• Brushless DC motor for long-lasting performance and quiet operation

• Maximum torque of 20 Ncm, ideal for low-viscosity applications

• Stirring capacity up to 25 liters (H₂O)

• Wide speed range from 30 to 2000 rpm with 1 rpm resolution

• SpeedServo™ torque compensation ensures constant speed under load changes

• Integrated alarms: overload, overtemperature, and overcurrent protection

• Safe start/stop knob and lock function for secure operation

• USB connectivity for data transfer and monitoring

• Compact and robust design for routine laboratory use

Applications

• Stirring volumes up to 25 liters (H₂O)

• Low-viscosity samples up to 10,000 mPa·s

• General laboratory sample preparation and mixing

• Ideal for educational, analytical, and routine laboratory tasks

Technical Data

• Display: Digital

• 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 setting resolution: 1 rpm

• Speed control: Digital

• Max viscosity: 10,000 mPa·s

• Torque compensation: SpeedServo™

• Chuck range: Ø 1–13 mm

• Shaft diameter pass-through: up to 8.5 mm

• Timer: Yes

• Lock function: Yes

• Interfaces: USB

• Dimensions (WxHxD): 90x285x235 mm (3.5×11.2×9.3 in)

• Weight: 4.1 kg (9 lb)

• Protection class: IP 54

Conclusion

The OHS 20 Digital overhead stirrer is the ideal solution for laboratories that require reliable performance, safety, and precision in low-viscosity mixing tasks. With advanced protection systems, torque compensation, and a compact design, it ensures consistent and secure operation for everyday laboratory needs.