Small Screw Jack

Outline

Extremely compact, lightweight, and easy-to-use jacks, delivering high performance similar to standard screw jacks.

Capacity: 2 kN / 5 kN
The lightest weight possible is achieved, while maintaining sufficient strength.
Compact, space-efficient housing with mounting holes designed to allow either upper or lower surface installation.
Consists of a high-precision worm gear and a trapezoidal screw; includes a self-locking function operable at any stroke position.
Wide-ranging options available, including dustproof bellows to protect the lifting screw, limit switch for control, and RC encoder.

Series/Size Code		RMG	RSG
Capacity		2kN	5kN
Lifting screw diameter		16mm	20mm
Lifting screw lead		3mm	4mm
Worm gear ratio	H	3	5
Worm gear ratio	L	–	24
Effciency	H	0.22	0.22
Effciency	L	–	0.13
Maximum allowable power per jack	H	0.32kW	0.63kW
Maximum allowable power per jack	L	–	0.25kW
Input shaft torque at no load (b)		0.07N・m	0.15N・m
Torque coefficient (a)	H	0.73	0.57
Torque coefficient (a)	L	–	0.21
Required input torque at maximum load	H	1.5N・m	3.0N・m
Required input torque at maximum load	L	–	1.2N・m
Speed coefficient (c) (screw lead per rotation of input shaft)	H	1.0mm	0.8mm
	L	–	0.17mm
Maximum allowable input rotation speed	H	2000min-1	2000min-1
Maximum allowable input rotation speed	L	–	2000min-1
Maximum input rotation speed at maximum load	H	2000min-1	2000min-1
Maximum input rotation speed at maximum load	L	–	2000min-1
Anti-rotation key torque at maximum load		3.5N・m	7.5N・m
Input shaft allowable overhang load		120N	300N
Amount of filled grease		Maintenance-Free	Maintenance-Free
Operating temperature range		-15〜80℃	-15〜80℃