Stainless Steel Screw Jacks

SIJIE stainless steel screw jacks are specifically designed for positioning and lifting applications that are located in wet, corrosive and harsh environments. Available in five sizes, these stainless steel screw jacks’ load capacity is from 2.5 tons to 25 tons.

All exposed surfaces and components are 304 or 316 stainless steel.
Bronze worm gears, nitrile rubber seals protect all internal mechanisms.
Jacks’ motor flange are adaptable for IEC motors, NEMA motors and Servo Motors.
Top plate, clevis end, thread end, plain end, forked head standard.
Translating screw, rotating screw, keyed screw configurations in upright or inverted mounting orientation.
Protective tube and bellows are available.

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DETAILS

Stainless Steel Screw Jacks Specification:

Jack Model	SJK-2.5T	SJK-5T	SJK-10/15T	SJK-20T	SJK-25T
Max. Lifting Force ( KN )	25	50	100/150	200	250
Max. Pulling Force( KN )	25	50	99	166	250
Lift Screw Size( mm )	Tr30×6	Tr40×7	Tr58×12	Tr65×12	Tr90×16
Gear Ratio ( H )	1/6	1/6	3/23	1/8	3/32
Travel length(mm) per full turn of worm Shaft ( H )	1.0	1.167	1.565	1.5	1.5
Efficiency % ( H )	23	21	23	21	19
Gear Ratio ( L )	1/24	1/24	1/23	1/24	1/32
Travel length(mm) per full turn of worm Shaft ( L )	0.25	0.292	0.5	0.5	0.5
Efficiency % ( L )	14	12	15	13	11
Max. Length of lifting screw (mm), when tensile force	1500	2000	2500	3000	3500
Max. Permissible power ( KW )	1.45	2.59	3.47	4.02	5.38
Lubricant ( kg )	0.1	0.25	0.5	0.75	1.1

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