Product Description gantry crane 20 ton        1, Consisted with single girder gantry frame(main girder, legs, bottom end beams), lifting mechanism, travelling mechanism, and electrical control, and matches with CD1 or MD1 Electric Hoist. 2, Widely used in workshop, storage, port and hydroelectric power station and some other outdoor place. 3. Also can be designed with one cantilever or no cantilever according to client's demand.     Gantry Crane 20 ton    In general Simple structure, installation, use, and maintenance are all convenient. Parts standardization, the generalization and seriation Good in usability and produce conveniently Self weight is low, high wind resistance.   gantry crane 20 ton    Mechanical Part of this gantry crane Main girder is used of U template and range of welding surface into the composite beams; USES the high quality carbon steel of Q235B or Q345B; The main girder and end beams are contected with the high strength bolt of 10.9 grade;   gantry crane 20 ton    Electric System of this gantry crane  Module control speed, micro-speed and double speed. Traveling and lifting smoothly. The power for trolley moving adopts flat cable, sliding smoothly.   gantry crane 20 ton    Protection Devices of this gantry crane Preventing hook clashing the top. Circuit self-test protection device. Protecting the current lacking of any phase. Outdoor cranes are equipped with hoisting mechanism, electrical control box and rainproof devices. Anti-collision, sound and light alarm devices. Equipped with rail clamp.   gantry crane 20 ton    Control Methods of this gantry crane Generally, ground controlling Cab controlling is also available according to customer's requirement Operating cab: open style and close style, left or right installation Direction of entrance: side, end and top.     Specification of 3-20 ton:  

Capacity				T	3	5	10	16	20
Operational method					Pendent line with push button /cabin
Speed	Lifting			m/min	8 ,8/0.8	8,8/0.8	7,7/0.7	3.5	3.5
	Cross travelling				20	20	20	20	20
	Long travelling	Ground			20	20	20	20	20
		Cabin			30,40	30,40	30,40	30,40	30,40
Motor	Lifting			Type /kw	ZD41-4/4.5	ZD141-4/7.5 ZDS10.8/4.5	ZD151-4/13 ZDS11.5/4.5	ZD151-4/13	ZD152-4/18
	Cross travelling				ZDY12-4/0.4	ZDY121-4/0.8	ZDY21-4/0.8×2	ZDY121-4/0.8×2	YZD-4/0.8×4
	Long travelling		Ground		ZDY21-4/0.8×2ZDY21-4/1.5×2	YZR132M1-6/2.2×2YZR132M2-6/3.7×2	YZR160M1-6/6.3×2	YZR160M1-6/6.3×2YZR160M2-6/8.5×2	YZR160M1-6/6.3×2YZR160M2-6/8.5×2
			Cabin		ZDR22-4/1.5×2ZDR24-4/2.2×2	YZR132M2-6/3.7×2YZR160M1-6/5.5×2	YZR160M1-6/6.3×2	YZR160M2-6/8.5×2YZR160L2-6/11×2	YZR160M2-6/8.5×2YZR160L2-6/11×2
Electric hoist				Type	CD1/MD1	CD1/MD1	CD1/MD1	CD1	HC
Lifting height				m	6,9
Working duty					A5
Power supply					as your demand
Span				m	12,16,20,24,30

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