SERVOMECH

Servomech - SJ Model A travelling screw ACME screw jack

Up to 30% duty cycle
ACME screw from 18 to 160 mm
5 to 1000 kN load capacity
14 sizes available

Product description

Compact design screw jacks

Acme screw jacks recommended for intermittent duty cycle

Long life synthetic grease lubricated worm gear

High precision worm gearbox, ZI involute profile

Gearbox ratio from 4:1 to 36:1

Monobloc gearbox housing, robust and compact shape

Input speed up to 1.500 rpm

Acme screw drive, travelling screw (Model A)

Acme screw with 1 or 2 starts

SJ Mod.A Series acme screw jacks with travelling screw:

14 sizes standard available

Acme screw from Ø 18 mm to Ø 160 mm

Load capacity from 5 kN to 1.000 kN

Available accessories:

Stroke length limit device (magnetic or inductive proximity)

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)

Screw jack housing fixing holes (threaded tapped holes on both housing fixing planes or through holes)

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

Protective tube

Anti-turn device

Trunnion mounting

Protective bellows

Worm wheel rotation detector

Safety nut

Acme thread wear level check

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

Servomech SJ50 mod A acme traveling rod screw jack

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Parts	Force max	Max. speed
SJ 5 MOD A ACME	5000 N	50 mm/s
SJ 10 MOD A ACME	10000 N	62,5 mm/s
SJ 25 MOD A ACME	25000 N	50 mm/s
SJ 50 MOD A ACME	50000 N	50 mm/s
SJ 100 MOD A ACME	100000 N	64,3 mm/s
SJ 150 MOD A ACME	150000 N	75 mm/s
SJ 200 MOD A ACME	200000 N	85,7 mm/s
SJ 300 MOD A ACME	300000 N	62,1 mm/s
SJ 350 MOD A ACME	350000 N	62,1 mm/s
SJ 400 MOD A ACME	400000 N	64,3 mm/s
SJ 600 MOD A ACME	600000 N	75 mm/s
SJ 800 MOD A ACME	800000 N	60 mm/s
SJ 1000 MOD A ACME	1000000 N	68,6 mm/s