Mechanical Jack Introduction:
Characteristics::
1.Quick braking,safe and reliable.
2.Quick lift,high working efficiency.
3.Smooth transmissions,no jerks.
4.Sturdy structure,light weight.
5.High efficiency, small turning force.
6.Ergonomic design for more comfortable operation. 
The steel jack is designed by mechanical transmission principle. It’s one of the best lift tools used in repairing and supporting, etc. The lifting or lowering speed is controllable. Moreover, it overcomes the shortcoming of the common hydraulic jacks whose lowering height and speed is out of control when oil leaking.
The top-quality all steel structure makes it safe and durable. The compact design with collapsible lever offers easy operation and simple maintenance. It has two applicable support stands. The lifting range is much bigger. 
Applications:
·  To lift machines, vehicles, equipment and perfabrication parts in mechanical assembly and vehicle overhaul, and at construction sites.
·  To lift rails in railway maintenance and repairs.
·  To support the prop timber in mine, tunnel, bridge, concrete buildup, etc.
·  To raise the lower positioned object before it is lifted.
 
Mechanical Jack Parameters:

Model			1.5T	3T	5T	10T	16T	20T
Rated capacity		t	1.5	3	5	10	16	20
Test load		kN	18.4	36.8	61.3	122.5	196	245
Lifting height		mm	350	350	300	300	300	400
Min.start jacking height	Over-bracket	mm	725	725	725	800	800	950
	Under-bracket	mm	70	75	75	85	95	110
Lifting height for the handle turn a ring		mm	15	8.5	4.3	5.0	3.5	2.5
The handle pull to lift full load		N	280	310	350	680	680	700
The number of operator		人	1	1	1	2	2	2
The handle turning radius R		mm	250	250	250	300	300	300
Dimensions mm		A	125	185	192	242	285	376
		B	293	304	330	485	492	505
		B1	193	204	232	254	282	295
		H	722	724	724	796	798	948
		h	68	72	74	82	93	108
		L	130	130	130	250	250	250
		W	130	130	150	150	160	200
		P	140	140	170	170	190	230
Net weight		kg	14.5	21	30	49	68	93