Double girder overhead crane is composed with double girder frame, crane travelling end truck, and the top running trolley with lifting and travelling device. The cranes are equipped with frequency inverter, which makes the crane speeds adjusted under 10 grades speeds. It could move very slow which makes it possible to do very accurate works. 
This model overhead crane is designed under GB regulation, passed ISO, CE certification.
 The crane lifting and travelling speeds are steady and accurate.
 New design also makes the crane lifting higher.Click here for more product information

FEATURES AT A GLANCE

Main Features of QD model overhead crane:
Heavy duty of M5~M8 (ISO), medium-heavy duty;
Soft start, 3-5 speeds to operate, very stable to lift and running,operation smoothly.
Long life span: 25-30 years;
Six direction action, to make sure the enough wide working area.;
High quality welding work;
Remote control or cabin control;
Electrical parts will be Schneider/Siemens;
Crane is equipped with all moving limit switch, loading limit and other standard safety devices, to promise crane work safe.9.
 Geared motors could be ABM and SEW. 

motors

limit switch

hook

1). Wheels, wire rope drum, gears, couplings are processed by CNC machine center, TOP quality control;
 2). Heavy duty motors with IP54/55, insulation class F3). Siemens/Schneider main electric parts are used for durable and safe operation
 4). Frequency inverters could be equipped on the crane for speed controlling.
 More details please contact with us.
 
Basic safety device:
 Full safety system as follows:
 Weight overload protection
 Emergency stop system
 Over current protection,Short-circuit protection
 Phase sequence protection
 Zero position protection
 Voltage loss protection
 Limit switch and stopper for crane long traveling and cross traveling
 Lifting overhigh and overlow limit switch (contact with us for more details.)teel

PRODUCT SPECIFICATIONS

No	Item			Data
1	Lifting capacity			5 - 450 ton
2	Lifting height			1- 40 m
3	Span			10.5- 31.5m
4	Working environment temperature			-40~ 40°C
5	Speed	Hoisting	Main	1- 10 m/min
			Aux.	5-15 m/min
		Trolley		4- 40 m/min
		Crane		8- 80 m/min
6	Working system			A5~A8

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