Benchtop Compact Stirrers [Selection Guide] General-Purpose and High-Power Stirrers: Features, Advantages, and Disadvantages

The Three-One Motor BL and BLh series are the core lineup for general laboratory and industrial stirring applications. Understanding the differences between general-purpose and high-power (high-torque) models helps you select the right motor for your specific requirements.

General-Purpose Models (BL Series)

The BL Series covers standard laboratory stirring from low to medium viscosity. Key characteristics:

  • Rotation speed: 50–3,000 rpm (model-dependent)
  • Rated torque: up to 1.0 N·m
  • Suitable for: aqueous solutions, solvents, light suspensions
  • Power: 100–240 V AC compatible
  • 5-year limited warranty with user registration

High-Power Models (BLh Series)

The BLh Series provides higher torque for medium to high viscosity applications. Key characteristics:

  • Rotation speed: 30–2,000 rpm (model-dependent)
  • Rated torque: up to 2.0 N·m (higher than BL Series)
  • Suitable for: viscous fluids, pastes, suspensions, larger volumes
  • Power: 100–240 V AC compatible
  • 5-year limited warranty with user registration

BL vs. BLh: Selection Guide

BL SeriesBLh Series
Viscosity rangeLow to mediumMedium to high
Max torque~1.0 N·m~2.0 N·m
Speed rangeUp to 3,000 rpmUp to 2,000 rpm
Typical applicationsAqueous solutions, solventsViscous fluids, pastes
Power supply100–240 V AC100–240 V AC

If you are unsure which series suits your application, please contact us with details of your sample (viscosity, volume, target speed) and we will recommend the appropriate model.

Related Products

Three-One Motor BLh Series

Three-One Motor BLh Series
High-torque brushless motor stirrer, 100–240 V

Three-One Motor BL Series

Three-One Motor BL Series
Standard brushless motor stirrer, 100–240 V

Air Motor Stirrer TYPE:40A

Air Motor Stirrer TYPE:40A
Pneumatic stirrer, no electrical power required

Inquiries about Compact Stirrers

👉 Contact us

For catalog requests and product inquiries,
please contact us using the inquiry form.