HZW, HWA and HKG – more power than permitted!

In its 175 years of experience, Lock has achieved the optimum level of synergy between materials and manufacturing processes to create robust, self-locking gear units.

A complete product family assures an optimum selection of gear units for loads of up to 12000 N or torques up to 160 Nm.

The load figures and crank force given by Lock levels reflect reality. The maximum load-bearing capacity of the manual drives depends on the strength of the operator.

With the HZW in conjunction with the rack drive and rack gear geometry developed in-house is a product unrivalled to this day.

Special features:

  • For raising and lowering slides, conveyor systems, work benches and much more.
  • Hardened gear unit components for ultimate loads.
  • Loadable in tension and compression.
  • Coupled with other HZW units, also suitable for linear or surface area loads.
Lock HZW manual drives


When we write 12000 N on a unit, you can count on having 12000 N!

Lock HZW drawing manual drives