OHS Overhead Stirrers
SKU: F20110494
VELP OHS Overhead Stirrers
The VELP OHS Series are professional overhead stirrers engineered to deliver powerful, precise mixing across a wide range of volumes and viscosities. Available in eight variants across two product lines, Digital and Advance, the series covers maximum torque outputs from 20 to 200 Ncm and volumes up to 100 L, making it adaptable to virtually any mixing challenge from low-viscosity aqueous solutions to high-viscosity materials like molasses and asphalt. Every model in the series is built around a brushless DC motor with SpeedServo™ technology for consistent speed under changing load conditions, an IP 54 sealed case for corrosion resistance in aggressive environments, and the exclusive SmartChuck™ system for tool-free shaft changes with one hand. The Advance line adds a 3.5" TFT graphic display, programmable methods, real-time torque and temperature graphing, a safety vibration sensor, Pt 100 temperature probe, and Wi-Fi connectivity to the VELP Ermes Cloud Platform, making it the choice for the most demanding lab applications. Designed and manufactured in Italy, the OHS Series sets the standard for safety, reliability, and performance in overhead stirring.
Features
All Models
- IP 54 sealed case protects against corrosion in aggressive chemical environments
- SpeedServo™ technology automatically maintains constant speed as viscosity changes
- Brushless DC motor delivers consistent torque even at maximum speed with long service life
- SmartChuck™ system enables tool-free, one-handed shaft accommodation (chuck range 1-13 mm, shaft pass-through up to 8.5 mm)
- Lock key function prevents unintentional changes to working settings
- Full overload, overtemperature, and overcurrent protection
- Built-in timer for unattended operations
- Silent operation up to 2000 rpm
- USB interface for data connectivity
- 1 rpm speed setting resolution
Digital Models Only (F20110494, F20110493, F20110492, F20110491, F20110490)
- 7-digit LED display for precise speed and torque monitoring
- Real-time torque tendency LED indicator for live feedback on mixing load
- Compact design optimized for easy handling in any lab setting
Advance Models Only (F20110482, F20110481, F20110480)
- 3.5" TFT graphic display for intuitive, information-rich operation
- Real-time torque, speed, and temperature graph monitoring on screen
- Programmable methods to save and recall complete working protocols
- Safety vibration sensor for maximum operational safety
- Pt 100 temperature probe included with temperature measurement from -200 to 550 °C (resolution 0.1 °C)
- Wi-Fi connectivity for remote control and data logging via the VELP Ermes Cloud Platform
- OHS/ControllerSoft compatible for PC-based control and reporting
- Two speed gears on 200 Ncm models (OHS 200 Advance) for extended speed range (6-400 rpm / 30-2000 rpm)
Specifications
| OHS 20 Digital | OHS 40 Digital | OHS 60 Digital | OHS 100 Digital | OHS 200 Digital | OHS 60 Advance | OHS 100 Advance | OHS 200 Advance | |
|---|---|---|---|---|---|---|---|---|
| Display | LED, 7 digits | LED, 7 digits | LED, 7 digits | LED, 7 digits | LED, 7 digits | TFT 3.5" graphic | TFT 3.5" graphic | TFT 3.5" graphic |
| Max Torque | 20 Ncm | 40 Ncm | 60 Ncm | 100 Ncm | 200 Ncm | 60 Ncm | 100 Ncm | 200 Ncm |
| Stirring Volume | Up to 25 L | Up to 25 L | Up to 40 L | Up to 100 L | Up to 100 L | Up to 40 L | Up to 100 L | Up to 100 L |
| Speed Range | 30-2000 rpm | 30-2000 rpm | 30-2000 rpm | 30-1300 rpm | 6-400 / 30-2000 rpm | 30-2000 rpm | 30-1300 rpm | 6-400 / 30-2000 rpm |
| Speed Gears | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 2 |
| Max Viscosity | 10,000 mPa*s | 25,000 mPa*s | 50,000 mPa*s | 70,000 mPa*s | 100,000 mPa*s | 50,000 mPa*s | 70,000 mPa*s | 100,000 mPa*s |
| Torque Compensation | SpeedServo™ | SpeedServo™ | SpeedServo™ | SpeedServo™ | SpeedServo™ | SpeedServo™ | SpeedServo™ | SpeedServo™ |
| Motor | Brushless DC | Brushless DC | Brushless DC | Brushless DC | Brushless DC | Brushless DC | Brushless DC | Brushless DC |
| Timer | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Methods | No | No | No | No | No | Yes | Yes | Yes |
| Vibration Sensor | No | No | No | No | No | Yes | Yes | Yes |
| Pt 100 Probe | No | No | No | No | No | Included | Included | Included |
| Temperature Range | — | — | — | — | — | -200 to 550 °C | -200 to 550 °C | -200 to 550 °C |
| Interfaces | USB | USB | USB | USB | USB | USB / Wi-Fi | USB / Wi-Fi | USB / Wi-Fi |
| Lock Function | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Dimensions (W x H x D) | 90x285x235 mm | 90x285x235 mm | 90x285x235 mm | 90x285x235 mm | 90x315x235 mm | 90x285x235 mm | 90x285x235 mm | 90x315x235 mm |
| Weight | 4.1 kg (9 lb) | 4.1 kg (9 lb) | 4.1 kg (9 lb) | 4.1 kg (9 lb) | 4.6 kg (10.1 lb) | 4.1 kg (9 lb) | 4.1 kg (9 lb) | 4.6 kg (10.1 lb) |
| Input Voltage | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz | 115 V / 60 Hz |
Documentation:
Brochure
$2,227.51 CAD
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