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Comparison between LD and HD overhead crane

The following is the comparison LD overhead crane & HD overhead crane for our Australia client,who need a set of 6.3 ton + 6.3 ton single girder  overhead crane with two electric hoists.

Feature

HD
(European type single girder overhead crane)

LD
(Traditional type single girder overhead crane)

Design

Modular design originated from Europe
(motor, reducer, electrics separated, easy to maintain)

Integrated design
(Hard to maintain)

Appearance

HD European standard single girder overhead crane

LD type singe girder overhead crane

Working class

M5

M3

Lifting height

4.15m
(Low headroom is a basic feature of European type hoist.)

4.05m
(We use low headroom type hoist to enable maximum lifting height in LD model.)

Lifting mechanism

HD crane hoist- European standard fem hoist 
Motor, reducer and brake 3-in-one, soft start for smooth running, long life design, maintenance free
Wire rope breaking force: 2160N/ mm2
Rope diameter: 9mm
Wire rope does not need oil.
Rope guide: industrial plastic (small friction with wire rope)

LD crane hoist- CD/MD wire rope hoist

Wire rope breaking force: 1670N/ mm2
Rope diameter: 15mm
Wire rope needs oil.
Rope guide: Iron (big friction with wire rope)

Lifting speed

0.5~5m/min (inverter control)

4m/min (single speed)

Trolley travelling speed

2~20m/min (inverter control)

20 (single speed)

Crane travelling speed

2~20m/min (inverter control)

20 (single speed)

Electrics

Schneider

CHNT origin from China

Maintenance

Maintenance free, no need to add oil 3~5 years

Gear box, wire rope needs to add oil every year. Will need to stop production for maintenance.

Noise

Little noise, environmental-friendly at work

Big noise in warehouse

Total weight

6.5t

7.14t

If you do not know which type of single girder overhead crane to choose, please feel free to contact us. Or Leave a message below, our single girder overhead crane engineer will design the most suitable overhead crane for your application.

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