Trapezoidal worm gear screw jack - MA model A

High-performance series Screw jacks with travelling screw

The MA trapezoidal worm gear screw jacks have an improved design for higher loads and tasks. Eight models are suitable for lifting loads from 5 to 350 kN, and linear speeds of up to 300 mm/s are possible. The maximum duty cycle is up to 40 % in a 10-minute cycle and, depending on load guidance and speed, strokes of up to 6 m are possible.

Standard options include electric motors, safety nuts, protection tubes, bellows, trunnion mounting, anti-rotation, microswitch, wear detection and adjustable backlash.

Features 

Trapezoidal spindle from Ø 18 mm to Ø 100 mm
Load capacity from 5 kN to 350 kN
8 standard sizes available

The worm gearboxes are lubricated for life with synthetic oil and are available with reduction ratios from 1:4 to 1:32
The special housing design facilitates heat dissipation
Input speed up to 3,000 min-1
Trapezoidal spindle 1, 2, 3 or 4 common for precise power adjustment

Available accessories (*):

Magnetic or inductive limit switches, adjustable on request
Incremental or absolute encoder for position control
Motor interface for electric motors (standard IEC connection. Customized connections by means of flange / motor holes possible on request)
Bronze bushing, run-out protection, anti-rotation protection, protective tube, swivel bearing plate, bellows, monitoring of worm wheel rotation, wear monitoring of the trapezoidal thread, safety running nut,...

Further options on request (*):

Trapezoidal spindle and mounting connections in stainless steel AISI 303, AISI 304, on request AISI 316
Lubricants for the food industry
Lubricants specifically for high or low temperatures

(*) Please check the compatibility and usability of the accessories with our application engineers.