Self-Locking Controls

Quadrastat Self-Locking Controls are fail-safe mechanical devices that lock whereever the operator sets them. They automatically lock out feedback forces in either direction, without using ratchets, gates, friction pads or unlocking knobs. The greater the feedback force, the tighter the "lock". The operator can position the control anywhere and never need to make a preliminary unlocking motion to reposition the lever.

These controls units are industrial derivations of devices originally designed for aircraft flight control systems. The irreversible locking principle has nearly 40 years of proven application in a variety of extreme environments.

Quadrastat can make simple modifications to our line of standard controls or engineer a new control to fit custom applications (see Developing Partnerships ).

To request information for any of these controls, please use our Online Information Request Form.

Q36 Heavy Duty Self-Locking Control

Uses a "strap-shoe/locking mechanism".

Q15 Self Locking Lever with Friction Pads

For use with various applications including: Engine Throttle, Hydrostatic Pump, and Variable Sheave functions.

Q14 Integral Series Locking Lever

The operator can position the control anywhere and never make a preliminary motion to reposion the lever.

C72 Friction Control Lever

The design offers several advantages, including more "repeatable" drag, finer adjustment with optional neutral detent, and more resistance to side loads.

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