The LD type 3-ton electric single-girder bridge crane (hereinafter referred to as the 3-ton single-girder crane) is designed and manufactured according to the standard JB/T1306-94. The 3-ton electric single-girder crane is used with CDI, MDI and other forms of electric hoists to become A light and small crane running on rails, with a lifting capacity of 3 tons and an applicable span of 7.5-22.5 meters. The working environment temperature is in the range of -25-+40℃.

Structural drawing of 3-ton single-girder bridge crane

Technical parameters of 3 ton single girder crane

Crane traveling mechanism	Working speed (m/min)		20 ground	30 ground		Room
	Speed ratio		58.78	39.38		26.36
	Motor	Type	YSE80₂-4	YSE90L-4		7DR100-4
		Power	2×0.8	2×1.5		2×1.5
		Rotational speed (r/min)	1380
Lifting mechanism (electric hoist)	Model of electric hoist		MD		CD
	Lifting speed (m/min)		8/0.8(7/0.7)		8(7)
	Lifting height H (m)		6、9、12、18、24、30
	Traveling speed (m/min)		twenty
	Motor		Cone squirrel cage mode
Working class			A3
Electric current			380V  50HZ three-phase
Width of rail			37~70mm

Lifting weight (t)	Span (m)	Crane mass (t)	Maximum wheel pressure (KN)	Minimum wheel pressure (KN)	Basic Dimensions (mm)
					H₁	H₂	H₃	B₀	C₁	C₂	B

3	7.5	2.05	24.5	4.1	530	1150	650	2500	818.5	1291	2000
	8	2.11	24.6	4.2
	8.5	2.18	24.8	4.4
	9	2.24	24.9	4.5
	9.5	2.31	25.6	4.6
	10	2.37	25.2	4.8
	10.5	2.44	25.3	4.9
	11	2.51	25.4	5.0
	11.5	2.72	25.0	5.2	580		700	2500			2000
	12	2.78	25.8	5.4
	12.5	2.87	26.1	5.7
	13	2.93	26.2	5.8
	13.5	2.99	26.4	6.0
	14	3.04	26.5	6.1
	14.5	3.57	27.8	7.4	660	1170	800	3000			2500
	15	3.65	28.0	7.6
	15.5	3.71	28.2	7.8
	16	3.78	28.4	8.0
	16.5	3.85	28.5	8.1
	17	3.93	28.7	8.3
	19.5	4.68	31.0	10.6	745	1185	900	3000			2500
	22.5	5.23	32.4	12.0	820	1210	1000	3500			3000