A Unique Mechanical Variable Speed
Transmission Drive

ADJUSTABLE SPEED DRIVES


Reliable and precise speed control - one road at a time

Zero-Max' One-way adjustable speed drives gives you a simple and effective way to control output speed - from full speed to standstill. Whether you work with automation, processing or specialised machinery, these mechanical drives offer Constant torque, Stepless speed adjustment and long service life - without the need for electronics.

The drives act as secondary transmission units and are ideal in applications where precise and repeatable speed control is essential.
All models run in one directionbut with Adjustable output speed from 0 to 400 RPM (based on 1800 RPM input), covering different torque and input power needs.

✅ Reliable and compact
✅ Stepless speed control
✅ Easy installation and operation
✅ No need for electrical connection

Below you can see the full range of one-way mechanical drives - from lightweight E models to powerful ZX models.

E Models

E Models 1, 2, 41 or 42

  • Torque Rating 12 in. lbs.
  • Speeds 0-400 rpm.
  • Normal Input 1/4 -1/3 H.P.

JK Models

K Models 1, 2, 41 or 42.

  • Torque Rating 25 in. lbs.
  • Speeds 0-400 rpm.
  • Normal Input 1/4 -1/3 H.P.

QX Models

QX Models 1, 2, 41 or 42.

  • Torque Rating 100 in. lbs.
  • Speeds 0-400 rpm.
  • Normal Input 3/4 H.P.

Y Models

Y Models 1, 2, 41 or 42.

  • Torque Rating 60 in. lbs.
  • Speeds 0-400 rpm.
  • Normal Input 1/2 H.P.

ZX Models

ZX Models 1, 2, 41 or 42.

  • Torque Rating 200 in. lbs.
  • Speeds 0-400 rpm.
  • Normal Input 1 – 1/2 H.P.