MA Mod.A Series Screw Jack

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High-efficiency Screw Jacks

Acme screw jacks recommended for intermittent duty cycle
Long-life synthetic oil-lubricated worm gear
High precision worm gearbox, ZI involute profile, reduced angular backlash
Gearbox ratio from 1:4 to 1:32
Gearbox housing shape for a better heat dissipation
Input speed up to 3.000 rpm
Acme screw drive, travelling screw (Model A)
Standard acme screw 1- or 2-starts
Upon request 3- or 4-starts available

MA Mod.A Series Acme screw jacks with travelling screw:

8 sizes standard available
Acme screw from Ø 18 mm to Ø 100 mm
Load capacity from 5 kN to 350 kN

Available accessories (*):
Stroke length limit device (magnetic or inductive proximity)
On request, execution with axial adjustment of the proximity sensors’ position or angular position
Incremental or absolute encoder for positioning control
Prepared for IEC standard motors, AC or DC motors, and brushless servomotors (special motor flange adapter available upon request)
Bronze guides
Stop the nut device to prevent the ball screw from travelling out of the screw jack housing
Protective tube
Anti-turn device
Trunnion mount
Protective bellows
Worm wheel rotation detector
Safety nut
Acme thread wear level check
Adjustable backlash

More options upon request (*):
Fixing attachments in stainless steel AISI 303, AISI 304, on request AISI 316
Lubricants for high or low ambient temperature
Lubricants suitable for the food industry

Screw jacks MA Series with 1-start acme screw