Henan Huagong Industrial Group Co., Ltd.
| Warranty Period | 1 year |
| Packaging Details | Wooden Box |
| Supply Ability | |
| Payment Terms | T/T |
| Delivery Time | 7 work days |
| Material | Cast Iron,Cast Steel |
| Certification | 2006/42/EC |
| Model Number | QD Model Crane Trolley Drum |
| Place of Origin | China |
| Brand Name | HG CRANE |
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Product Specification
| Warranty Period | 1 year | Packaging Details | Wooden Box |
| Supply Ability | Payment Terms | T/T | |
| Delivery Time | 7 work days | Material | Cast Iron,Cast Steel |
| Certification | 2006/42/EC | Model Number | QD Model Crane Trolley Drum |
| Place of Origin | China | Brand Name | HG CRANE |
| High Light | QD model double girder crane trolley ，spooling drum with large capacity ，wire rope drum for cranes | ||
The drum group is the primary component of lifting machinery. The drum is used in the hoisting mechanism to wind the wire rope for power transmission.
Composition of the drum group:
The drum group consists of components such as the drum, drum group, gear coupling, and bearing supports. The drum shaft is connected to the reducer through a gear coupling. For the fixation of the wire rope on the drum, the crane uses a double-grooved drum, with spiral grooves at both ends in opposite helical directions. The two ends of the wire rope are separately fixed on the outer ends of the left and right helical grooves. The wire rope is generally fixed on the drum using pressure plates, which is a simple method and convenient for disassembly. To ensure safety, reduce the pressure on the fixed pressure plates or the force on the wedges, and ensure that the load-handling device can be lowered to the limit position, in addition to the fixed rope loops, at least 2 loops of wire rope should be retained on the drum. These loops are called safety loops, also known as load-reducing loops.
Material of the drum group:
Generally, cast iron not lower than HT20—40, cast steel ZG25 or ZG35, or steel plates Q235B or Q345B for welded construction are used.
Drum machining process:
Plate blanking → rolling the cylinder body and welding the longitudinal seam → inspecting the longitudinal weld and geometric dimensions of the cylinder body: diameter, length, inner diameter ovality tolerance, etc.; for large-diameter drums, add temporary stiffening ribs according to technical procedures → machining the annular bevel of the cylinder body; for processes requiring rough machining of the outer diameter, machine the outer surface → extension welding of the cylinder body. For drums that require temporary stiffening ribs at both ends, perform according to technical procedure requirements, and inspect the quality of the circumferential welds and the machining allowance → final dimensioning of the drum length and machining of the end rabbets or bevels → welding the end flange plates, shaft, inner support rings, etc.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2008
Total Annual:
7000000-20000000
Employee Number:
200~500
Ecer Certification：
Verified Supplier
Huagong, established in June 2008 in Changyuan City, Henan Province, is a leading manufacturer of lifting accessories with a registered capital of 56 million yuan. The company covers an area of over 75,000 square meters and employs more than 500 staff. Huagong specializes in various cranes and their... Huagong, established in June 2008 in Changyuan City, Henan Province, is a leading manufacturer of lifting accessories with a registered capital of 56 million yuan. The company covers an area of over 75,000 square meters and employs more than 500 staff. Huagong specializes in various cranes and their...
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