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MARSHALL Select MS-OT40LE Overhead Stirrer, 40L

€853.84excl. VAT

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Maximum Stirring Capacity
40L
Speed Range
50 to 2,200 RPM
Maximum Viscosity
50,000 mPas
Maximum Torque
60 Ncm
Chuck Diameter Range
0.5 to 10 mm
All 16 specifications
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Specifications 16

Brands
Marshall Select
New/Used
New
Maximum Stirring Capacity
40L
Speed Range
50 to 2,200 RPM
Maximum Viscosity
50,000 mPas
Maximum Torque
60 Ncm
Chuck Diameter Range
0.5 to 10 mm
Motor Input Power
120W
Motor Output Power
100W
Motor Type
Brushless DC motor
Display
LED
Overload Protection
Visual alarm, motor automatic stop
Protection Class
IP21
Dimensions (W x D x H)
3.3 x 7.3 x 8.7 in. (8.3 x 18.6 x 22 cm)
Weight
13.2 lb. (6 kg)
Electrical Requirements
110/220V, 50/60Hz, 130W

Product description

High-performance 40L capacity stirrer with explosion-proof motor and advanced safety features.

MARSHALL Select MS-OT40LE Overhead Stirrer, 40L

Maximum Stirring Quantity 40L Speed Range 50 to 2,200 RPM Maximum Viscosity 50,000 mPas

Features

  • High torque of 60 Ncm suitable for viscous medium stirring
  • Brushless DC motor ensures long life, maintenance-free operation, and safety in explosive environments
  • LED display for precise monitoring of actual speed
  • Over torque protection and safety circuits provide safe stop functions in anti-stall or overload conditions
  • Large chuck diameter supports many shaft types, increasing versatility
  • Through-shaft design allows for easy adjustment of the impeller position
  • Automatic resumption of stirring at preset speed after power loss
  • IP21 protection class offers basic protection against solid objects and dripping water
  • Analog speed controls displayed on the LED for easy adjustments and monitoring
  • Designed to accept pass-through stirrer rods for flexible setup options
  • Visual alarm alerts for immediate notification of system issues or malfunctions
  • Explosion-proof motor enhances safety in volatile environments

The MARSHALL Select MS-OT40LE Overhead Stirrer stands out for its high reliability and superior performance, engineered to manage stirring tasks up to 40L. It features a versatile speed range from 50 to 2,200 RPM, suited for a wide variety of laboratory needs. This stirrer is equipped with a brushless DC motor, renowned for its long life, maintenance-free operation, and explosion-proof qualities. The MS-OT40LE includes an LED screen that displays the actual speed, ensuring precise control over your mixing processes. It's capable of handling high viscosities up to 50,000 mPas with a maximum torque of 60 Ncm, making it ideal for stirring viscous mediums.

The large chuck diameter supports many shaft types, enhancing its adaptability. Safety is a paramount feature of this device, with integrated circuits that provide a safe stop function in conditions of anti-stall or overload, where over torque protection automatically stops the motor. Additionally, the through-shaft design allows for easy adjustment of the impeller position to suit varying laboratory needs. In the event of a power outage, the stirrer automatically resumes operation at the preset speed once power is restored, ensuring continuity and efficiency. The IP21 protection class provides basic protection against solid objects and dripping water, further securing the unit in active laboratory environments.

INCLUDED: The MARSHALL Select MS-OT40LE Overhead Stirrer, 40L includes:

  • Key of Drill Chuck
  • Power Cord
  • Operator's Manual
  • Manufacturer's Documentation
  • 1 Year Manufacturer's Warranty

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 23 October 2026