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Guangdong Yongtong Crane Machinery Co.,Ltd Professional intelligent lifting solution service provider
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What are the meanings of crane models LD/LH/QD/QZ/MH/QC?

2023-03-04

There are many operators who are not very clear about the meaning of crane model, such as LD/LH/QD/QZ/MH/QC, etc., which all represent what is meant. Let's briefly introduce the crane model how to see.
HCrane type letters generally indicate the crane type, characteristics, operation mode, use, etc. Different crane manufacturers may have different naming rules, but generally follow the following principles:

The first letter indicates the type of crane, such as Q for bridge, M for portal, L for beam, C for crawler, Y for metallurgy, T for tower, etc.
The second letter represents the characteristics or use of the crane, such as D for hook, Z for grab, C for electromagnetic, H for hoist, X for suspension.
The third letter (if there is) indicates the operation mode or structural form of the crane, such as E means double dolly (double lifting point), S means two-way (large car and small car can move around), W means outdoor type, etc.
The number generally indicates the rated lifting weight and span of the crane.

For example:
LD type electric single beam crane, L means beam, D means electric, single beam means only one main beam.
LH type electric hoist double beam crane, L means beam, H means hoist, double beam means there are two main beams.
QD type electric double beam bridge crane, Q means bridge, D means hook, double beam means there are two main beams.
QZ type electric grab bridge crane, Q means bridge, Z means grab.
QC type electromagnetic bridge crane, Q means bridge, C means electromagnetic.
QD100/20t-32m-A5-W electric double-beam bridge crane, QD means bridge hook type, 100/20T means the main hook rated lifting weight of 100 tons, vice hook rated lifting weight of 20 tons; 32m means the span is 32 meters; A5 indicates that the job level is A5. W means outdoor type.
LD10t-8.5m-A4-W means electric single beam crane, lifting weight is 10 tons, span 8.5 meters, A4 work level, outdoor site. There are usually some standard specifications, but it is also possible to use non-standard specifications, which need to be redesigned according to the user's specific parameters.