BEIER® Mechanical Stepless Speed Variator
Sumitomo’s BEIER® Mechanical Stepless Speed Variator, rooted in 50+ years of engineering, boasts a proprietary alloy friction disc mechanism for low wear and high load capacity. Covering 0.2-150kW, it offers 1:4/1:10 speed ratios and versatile torque properties. With 26 frame sizes, multiple mounts, 90% efficiency, and robust sealing, it fits global motors and harsh environments, ideal for papermaking, packaging, and water treatment, ensuring reliable, low-maintenance speed control.
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Estimated Delivery Date: Mar 06-Mar 06
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BEIER® Mechanical Stepless Speed Variator by Sumitomo Drive Technologies
With over 50 years of engineering heritage and industry trust, the BEIER® Mechanical Stepless Speed Variator from Sumitomo Drive Technologies redefines reliability and performance in mechanical speed control. Designed for high-capacity operations and extended service life, this variator stands out in power transmission systems across diverse industrial sectors.
At its core lies a proprietary friction transmission mechanism, featuring multiple thin friction discs crafted from wear-resistant special alloy steel with high fatigue strength. This innovative design creates numerous pressure contact points, minimizing surface pressure while boosting load capacity. An enduring oil film maintains fluid friction at contact surfaces, preventing metal-to-metal contact even under moderate overloads and ensuring ultra-low wear for exceptional durability.
The variator offers versatile performance with three models (A, B, D) tailored to distinct operational needs. It covers a power range of 0.2kW to 150kW, with speed control ratios of 1:4 (A/B types) and 1:10 (D type). Torque characteristics include intermediate properties of constant torque and output (A/D types) and constant output (B type), adapting seamlessly to dynamic load changes.
Engineered for flexibility, it supports solid output shafts in horizontal, vertical downward, and upward directions, with multiple mounting options (foot, flange, case mount) across 26 frame sizes. Its optimized design delivers up to 90% operational efficiency, even at high speeds, while symmetric rotating components and low moment of inertia ensure vibration-free operation.
Compatible with global motor standards—including three-phase, premium-efficiency, outdoor, increased safety explosion-proof, and flameproof variants—it suits harsh environments via robust sealing against moisture and dust. Ideal for papermaking, water treatment, packaging machinery, and plunger pumps, the BEIER® Variator minimizes maintenance needs and operational costs, backed by Sumitomo’s rigorous quality assurance.
Sumitomo BEIER® Mechanical Stepless Speed Variator Series Specifications
Note: BEIER® variators use multi-disc friction drive for stepless speed control, with long service life and high overload capacity. Weights are for standard units (excluding motors, accessories).
| Model | Approx. Weight | Motor Combination (Power Range) |
|---|---|---|
| BEIER-A02, BEIER-A04, BEIER-A07, BEIER-A11, BEIER-A15, BEIER-A22, BEIER-A37, BEIER-A55, BEIER-A75, BEIER-A110 | 12kg – 320kg | Three-phase induction motors (0.2kW – 110kW); constant torque/constant output hybrid 特性，1:4 speed ratio, general industrial variable-speed drives |
| BEIER-B02, BEIER-B04, BEIER-B07, BEIER-B15, BEIER-B22, BEIER-B37, BEIER-B55, BEIER-B75 | 15kg – 280kg | Three-phase high-efficiency motors (0.2kW – 75kW); constant output 特性，1:4 speed ratio, packaging, printing, textile machinery |
| BEIER-D04, BEIER-D07, BEIER-D15, BEIER-D22, BEIER-D37, BEIER-D55, BEIER-D75 | 18kg – 300kg | Three-phase asynchronous motors (0.4kW – 75kW); constant torque/constant output hybrid 特性，1:10 wide speed ratio, conveyor, mixing, processing equipment |
| BEIER-A02-C, BEIER-A04-C, BEIER-A07-C, BEIER-A11-C (with CYCLO reducer) | 18kg – 380kg | Three-phase motors (0.2kW – 110kW); integrated cyclo drive, high reduction ratio, heavy-duty variable-speed applications |
| BEIER-B02-C, BEIER-B04-C, BEIER-B07-C, BEIER-B15-C (with CYCLO reducer) | 20kg – 350kg | Three-phase high-efficiency motors (0.2kW – 75kW); constant output + cyclo reduction, low-speed high-torque variable-speed drives |
| BEIER-D04-C, BEIER-D07-C, BEIER-D15-C, BEIER-D22-C (with CYCLO reducer) | 22kg – 360kg | Three-phase asynchronous motors (0.4kW – 75kW); 1:10 ratio + cyclo reduction, wide-range low-speed variable-speed systems |
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