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Servomech MA Model A travelling screw ball screw jack

  • Up to 100% duty cycle
  • Ball screw from 16 to 100mm
  • 5 to 350 kN load capacity
  • 8 sizes available

Product description

High efficiency screw jacks


Ball screw jacks recommended for continuous operation, duty cycle up to 100%

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 designed for a better heat dissipation

Input speed up to 3.000 rpm

Ball screw drive, travelling screw (Model A)


MA BS Mod.A Series ball screw jacks with travelling screw:

8 sizes standard available

Ball screw from Ø 16 mm to Ø 120 mm

Load capacity from 5 kN to 350 kN


Available accessories:

Stroke length limit device (magnetic or inductive proximity switch)

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 nut device to prevent the ball screw travelling out of the screw jack housing

Protective tube

Anti-turn device

Trunnion mount

Protective bellows

Worm wheel rotation detector

Safety nut


More option upon request, application dependant:

Fixing attachments in stainless steel AISI 303, AISI 304, on request AISI 316

Lubricants for high or low ambient temperature

Lubricants suitable for food industry

Part numbers

Parts Price Force max Max. speed
5000 N 200 mm/s
10000 N 250 mm/s
25000 N 266,7 mm/s
50000 N 285,7 mm/s
100000 N 125 mm/s
200000 N 125 mm/s
350000 N 93,8 mm/s



Technical data

Duty cycle 100 %
Force max 5000 N
Max. speed 200 mm/s
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