Crane Rope Drum and Crane Hoist Drum
Casting iron rope drum & Steel plate rope drum

Crane rope drum and crane hoist drum is one important crane components of a material handling crane which is used to fill in, wind and store steel wire rope of the hoisting or towing mechanism to transmit force, turn the rotary motion into a straight motion.
Generally the crane rope drums is consisted of crane drum shaft, flange type annular gear, hub, bearings, bearing pedestal, etc. Every component of crane rope drum is designed and fabricated to meet the operating and safety requirements of overhead travelling cranes, gantry cranes, jib cranes and process industrial cranes,etc.

Basic requirements of crane rope drum design

• Same standards and regulations should be applied to the components of crane drum including rope seat radius, tread diameter, and the sheaves.
• The depth of the wire rope groove is 1/2 of the wire rope diameter to ensure the steel rope winding into groove orderly to prevent steel rope from unwinding effectively.
• The pitch and groove depth should be designed and fabricated properly to lower the possibility of steel wire rope damage caused by abrasion between grooves.
• The inner wall of wire rope grooves is grounded to reduce the abrasion of steel wire rope.

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wire rope drum design drawing detail 

Worn and good 

Application of wire rope drums

Crane hoist drum is an important crane components which is adopted to wind the steel wire rope and with the cooperation of other crane components to help the overhead traveling crane to lift and take the load for material handling.
The wire rope crane drum , hoist drum and winch drum are widely used on types of wire rope hoists, winches, and various types of overhead travelling crane, gantry crane, jib cranes and other lifting and towing mechanism, etc.

Types of crane wire rope drums

According to the applications, the wire rope drums can be grouped in hoist drum, winch drum and crane drum, etc.
As for the wire rope drum design, it can be grouped into single drum and double drum groups, etc.
According to the fabrication materials, the wire rope drums can be grouped in casting iron rope drum,carbon steel alloy, steel plate rope drum or small diameter seamless steel tube drum,etc. Usually, the casting iron drum is featured with self-lubrication property, more comfortable for wire rope whereas the steel plate rope drum is more suitable for big diameter wire rope drum.

Cast iron type crane drum

Cast steel type crane drum

Steel plate type crane drum

Cast iron crane rope drums are made of cast iron, offering better protection to the wire rope due to the self-lubrication property.

Cast steel crane rope drums are made of cast steel which are rarely used than the cast iron crane drum and steel plate crane drum due to the lower castability.

Steel plate crane rope drums are usually made of Q235, Q345 steel plates, which are more frequently used than cast steel crane rope drum due to easy and convenient to fabricate.

Advantages of crane wire rope drum

The crane wire rope drums can be adopted on various types of industrial cranes. A wide range of crane wire rope drums are available with different sizes and designs to meet the crane designs and capacities of your material handling industrial cranes. Genially, our crane rope drum and crane hoist drum are featured as robust, durable and reliable and with the following advantages:

1. Simple structure enables the adjustment and installation of crane rope drum easy and convenient.
2. Wire ropes are orderly arranged into the spiral grooves around of the cable drum during operation.
3. Standardized rope drum design is applicable to various lifting heights.
4. High strength,great rigidity, and light weight.
5. 6. Large-diameter rope drum with small drum width enables a safe fleet angle to ensure a longer working of wire rope.

We can offer you various types of crane parts and components fabricated based on your particular requirements and application condition. Each fabrication procedure of each crane and hoist part and component is supervised, inspected and recorded to ensure the quality.No matter what type of wire rope drum you need, we can offer you optimal crane drum, hoist drum or winch drum.

Wire rope winch for heavy duty open winch crane 

How are wire rope drum produced in 20 days?

How are the wire rope drums produced?Welding and lathe processing are the two most crucial steps in the processing of rope drums. The wire rope drum's strength and rigidity are ensured by the welding process, along with the weld's quality. In order to inspect the welding quality, UT and MT flaw detection are typically required. Lathe processing is used to guarantee that the rope drum's size and tolerance meet the requirements of the drawing and the final product.

In the following, the main production procedures are presented for your reference. Contact us to get your customized wire rope drums for your electric hoist and cranes.

CNC plasma cutting blanking - Rope drum cuting & blanking proceture 1

Rolling machine roll - Rope drum rolling proceture 2

Press machine shaping - Rope drum shaping proceture 3

Submerged Arc Welding CO Gas Shielded Welding - Rope drum welding proceture 4

Lathe-processing - Rope drum lathing proceture 5

Assembly - Rope drum assembly proceture 6

Drilling-hole - Rope drum drilling proceture 7

Boring and-milling key - Rope drum processing proceture 8

Polishing and painting - Rope drum polishing & painting 9