The LH type electric hoist double beam bridge crane (hereinafter referred to as the 20t crane) is designed and manufactured according to the standard JB/T3695-1994. The LH type 20t electric hoist double beam crane is used together with the CDI, MDI and other forms of 20t electric hoist. It has become a 20 t light and small crane running on rails. Its applicable lifting capacity is 20t, the applicable span is 7.5-35m, and the working level is A3~A5, The working environment temperature is within the range of – 25 ℃~+40 ℃.

Structural drawing of 20t electric hoist double beam overhead crane

Technical parameters of 20t electric hoist double beam crane

name				Model unit	LH type 20-ton hoist double-girder bridge crane (LH-type 20-ton electric hoist double-girder crane, LH-type 20-ton electric hoist bridge crane, 20-ton double-girder crane, 20t crane, 20-ton bridge crane) model representation method: LH20-D, LH20-S
Lifting weight Q				t	20(20/5)
Control type					Ground control, control room control
cart	Running speed V			m/min	20			30					45
	electric motor		model		ZDY 1 22–4
			power	kw	2×1.5
			Rotating speed	RPM	1380
Rise	Electric hoist			model	CD1 MD1
	Lifting height			m	6, 9, 12
	Lifting speed V1			m/min	3.5 3.5/0.35
car	Running speed V2			m/min	20
Classification group					A3~A5
power supply					3 phase 50HZ 380V
Wheel diameter (large car/small car)				mm	φ350,φ400/φ270
Recommended rails				model	P30,P38,P43
Span S				m	10.5	13.5	16.5		19.5	22.5	25.5			28.5	31.5
Maximum wheel pressure Rmax				KN	143	149	155		161	170	175			184	189
Total weight W				KG	7285	9028	11340		13493	15739	19016			22155	24954
basic size		K		mm	1800	1800	1800		1800	1800	1800			1800	1800
		W		mm	3400	3400	3400		3400	3400	4000			4000	4000
		L 2		mm	4000	4000	4000		4000	4000	4600			4600	4600
		L 1		mm	10802	13802	16802		19802	22802	25802			28802	31802
		W C		mm	1300(1950)
		H		mm	1414							1464