Electric Overhead Travelling Crane With Hook is composed by the bridge frame, crab, trolley travelling mechanism, electrical equipment. This crane is suitable for the workshops, good yards and warehouses of the departments of stations, ports, industrial and mining enterprises, lifting, transporting, loading and unloading all kinds of materials in a fixed span. Depending on the different using frequency, it can be divided into A5, A6,A7 class. The maximum capacity can be up to 450 ton.

Double girder overhead traveling crane

Features

1. Overload protection

2. Main lifting motor with thermal protection

3. Hooks with latch

4. Rubber buffers

5. Protective earthing

6. Emergency switch

7. Sub-assemblies characteristic are tested before assembly

8. Laser anti-collision system

Specification

Lifting Capacity T				5	10	16/3.2	20/5.0	25/5.0	32/5.0	Oct-50
Span M				10.5-31.5
Lifting height M	Main Hook			16	16	16	12	12/11.0	16	12
Lifting height M	Aux Hook			18	11	14/13	18	16
Speed M/min	hoist	Main hook	A5	12.5	8.5	7.9	7.2	7.3	7.8	5.9
		Main hook	A6	15.5	13.3	13	9.7	9.8	9.5	7.8
		Aux hook	14.5	12.7	12.7	19.5	13.2
	Trolley travelling			37.2	43.8	44.6	44.6	37	42.4	38.5
	Bridge travelling		A5	89.8 /92.3	89.8-91.9	84.7-87.6	84.7/ 87.6	85.5/88	74.2-87.6	74.6
	Bridge travelling		A6	116.2/ 117.4	112.5-116.8	112.5	112.5/ 101.4	112/ 101.4	86.8-101.4	87.3
Weight Kg	Trolley		A5	2126	3424	6227	6856	7185	10877	15425
	Trolley		A6	2224	3562	6427	7180	7856	11652	15765
	Total Weight		A5	12715-31405	14270-34405	19128-39428	19947-41497	20795-42796	26901-52748	35317-64880
	Total Weight		A6	12991-31596	14719-34699	20045-41315	20984-44225	22632-16324	28061-55272	36075-67242
Max Wheel Load KN			A5	74-125	102-160	141-205	163-231	185-255	237-327	333-450
Max Wheel Load KN			A6	75-126	104-162	145-211	167-239	189-263	242-335	336-457
Rail recommended		Trolley		15kg/m					43kg/m
Rail recommended		Bridge		43kg/m					QU70	QU80
Power Source				380V 50HZ 3Phase

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CASE

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FAQs

What load capacities and spans are offered for the QD-style double‑girder overhead traveling crane?

This crane supports a broad range—from 5 tons up to 500 tons—with spans between 10.5 m and 35 m, and a maximum lifting height of approximately 18 m. It’s built to serve both indoor workshops and outdoor yards effectively.

Can you explain the working duty classes and certification of this crane?

The crane is available in duty classes A5 and A6, with potential for A7 depending on usage frequency. It comes CE- and ISO-certified, and enjoys reliable global support through overseas service centers and field engineers.

What key safety and precision features are built into this crane model?

Safety features include overload protection, thermal protection for the main lifting motor, latches on hooks, rubber buffers, earthing protection, emergency stop switches, and a laser anti-collision system—all designed to ensure operational precision and safety.

How is the crane’s structural reliability and component readiness ensured?

All major sub-assemblies are tested before assembly, and the crane incorporates a robust bridge frame, trolley, crab mechanism, and electrical systems—optimized for ease of maintenance and long-term performance.

Is this crane suitable for both indoor and outdoor industrial use?

Yes—this model works reliably in both indoor workshop environments and outdoor yards, as well as across industrial, mining, port, and station settings, providing versatile material handling solutions.

What are the power supply requirements and rail specifications for optimal operation?

The crane runs on standard 380 V 50 Hz three-phase power. Recommended rails include 43 kg/m rails (QU70/QU80) for bridge travel and 15 kg/m or 43 kg/m rails for the trolley, depending on the model and load class.

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