QD-Double Girder Overhead Crane

DQ-Double Girder overhead Crane is a kind of heavy duty crane, it could be classified into several working duties: A5, A6, A7, according to the working frequency and pure working time.

Lifting Capacity:

5~500t

Span Length:

10.5~31.5m

Lifting Height:

6~30m

Working Class:

A5, A6, A7, A8

Ambient Temperature:

-20~40℃

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Product Description Technical Parameters Configuration Related product Inquiry

Product Description

Product

QD double girder overhead crane is composed of bridge, travelling mechanism, trolley, electric equipment. Main girder adopts box welded structure, crane travelling mechanism adopts separate drive, and lifting mechanism is equipped winch. All mechanism are controlled in driver's cab.

QD model double girder overhead crane is applied in open warehouse or rail sideways to conduct common loading unloading and material handling works. It is a heavy duty type overhead crane that satisfy frequently using.

Features

Heavy Duty and High Efficient;

Suitable for any environment ( High Temperature, Explosion Proof and so on);

Long Life Span: 30-50years;

Easy for Installation and maintenance;

Reasonable structure and strong rigidity;

The speed can be frequency inverter speed control;

Control method is cabin control or remote control;

Depending on lifting cargo, crane can be equipped with hanging beam magnet or magnet chuck or Grab or C hook;

Crane is equipped with all moving limit switch, loading limit and other standard safety devices, to promise crane work safe.

Main Girder

Finework cranes

With strong box type and standard camber, there have reinforcement plate inside the main girder. Material of high quality carbon steel Q235B and Q345B.

End carriage

Finework cranes

Use rectangular tube manufacturing module, butter motor drive, with roller bearings and lubrication.

Trolley

Finework cranes

It is with heavy capacity and high working class. It is developed specifically for lifting that requires accurate and smooth movement.

Wheel

Finework cranes

Equipped with high quality forged or casting wheel, which will have be heat treated to ensure wheels’ performance.

Hook block

Finework cranes

The hook block is composed of sheaves, hooks and latch, 360 degree rotating. The hook is forged and single hook and double hook is available.

Operation ways

Finework cranes

Pendant control, remote control and/or cabin control.

Cabin

Finework cranes

The cabin has open model and closed model. It can be installed on left or right side according to the practical situation. And the direction of entering has two ways: sideway entrance and end surface entrance to satisfy the users' choice in different conditions.

Technical Parameters

Model				QD type
Lifting capacity				t	5	10	16/3.2	20/5	32/5	50/10	75/20	100/20
Max. lifting height	Main lifting			m	16	16	16	12	16	12	20	22
Max. lifting height	Aux. lifting			m			18	14	18	16	22	22
Span				m	10.5-31.5						13.5-31.5	13-31
Lifting speed	Main lifting		A5	m/min	11.3	8.5	7.9	7.2	7.5	5.9	6.1	3.9
	Main lifting		A6		15.6	10.4	10.7	9.8	9.5	7.8	6.1	4.9
	Aux. lifting						14.6	15.5	15.5	10.4	7.2	7.2
Trolley traveling speed				m/min	37.2	43.8	44.6	44.6	42.4	38.5	38.4	33.86
Crane traveling speed		A5		m/min	89.8(91.8)	89.8(91.9, 84.7)	84.7(87.6)	84.7(87.6)	87.6(74.2, 74.6)	74.6	65	65.7
Crane traveling speed		A6		m/min	92.7(93.7)	92.7(93.7, 86.5)	76(89)	76(89)	89(75.3)	75(76.6)	66.2	65.7
Power				3P 380V 50Hz or others

Configuration

Safety protection devices:
Overload limiter, limit switch, interlocking protection devices, buffer, track sweep plate, bus bar protection board, anti-collision device, main disconnecting switch, emergency stop system and motor overload protection.