Model	Capacity(T)	Lifting height(mm)	Effective span(mm)	Motor power(KW)	Input valtage(V)	Size(mm)	Revolution(r/min)	Lifting speed(mm/min)	Weight(T)
QJJ20-4B	20	1700	3200	2.2X4	380	4410×1160×2690	50	600	2.1
QJJ30-4B	30	1700	3200	3X4	380	50	600	2.8
QJJ40-4B	40	1700	3200	3X4	380	50	600	3.6

1. inside railway, larger capacity

2. two post work together , and reduce the damage of the screw

3. can send you four support pillar for free

4. can be controlled together or single

5. can be used in small vehicles’ maintenance from 1ton to 40tons

main working theory:

put the machine under the front of the vehicle, then turn on the power, then the electric motor drive the screw , the screw drive the nut together with the bracket arm support, bracket arm, as well as the bracket fork. Upside down.

Directly from factory can save you much money, to bring you large profit.

Double insurance and three kinds of insurance ways can let your sale business better than others

Large-tonnage lift can enlarge you business scope

Better quality products with cheaper price, make your market larger.

If you can't find the information you need , please contact me i will send you the information to you as soon as possible, thanks and regards.