Crane Wheel Set For Sale

Product Name: Crane Wheel Set

Material: Cast steel/forged steel

Applications: Gantry cranes, port machinery, bridge cranes, and mining machinery

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Overview

Features

Parameter

Application

Overview

Crane wheels are a type of forging, primarily used in gantry cranes, port machinery, bridge cranes, and mining machinery. Commonly made from 60#, 65Mn, and 42CrMo forged steel, they must possess high surface hardness and matrix toughness to meet the requirements for wear resistance, fatigue resistance, and impact resistance.

The crane wheel manufacturing process includes casting, rough machining, heat treatment, and finishing, with surface hardening as the core. Early designs employed ZG50SiMn material combined with differential heat treatment (high-temperature, zero-hold quenching followed by oil quenching and tempering) to achieve a combination of high surface hardness and core toughness. Subsequently, ZG35-42 material was developed for weld-hardening the tread, supplemented by annealing to optimize performance. Modern processes incorporate die forging and ultrasonic quenching equipment (such as the YFL-160KW quenching machine). Through precise CNC-controlled rotary heating and water spray cooling, the hardened layer reaches a depth of 10-20mm, enhancing contact fatigue resistance.

Features

Excellent Fatigue Resistance

After forging, crane wheels eliminate internal microscopic defects, resulting in a more uniform and dense structure, thus improving fatigue resistance. This is particularly important for equipment that requires long-term operation and withstands cyclical loads.

High Toughness

During the forging process, the metal billet undergoes plastic deformation under pressure, increasing the material's toughness. This makes the crane wheel less susceptible to breakage under impact, enhancing its durability and reliability.

Customizable Design

The forging process offers high flexibility, enabling the production of crane wheels in a variety of complex shapes. This opens up a wide range of design possibilities, allowing for customized designs that meet the needs of diverse users.

High Strength

During the forging process, plastic deformation increases the material's density and structural uniformity, crane wheels resulting in a high strength-to-weight ratio and the ability to withstand long-term friction and wear.

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Parameter

Parameter Category	Parameter Range	Description
Wheel diameter (D)	Φ200mm ~ Φ1200mm	Common specifications: Φ250mm, Φ400mm, Φ630mm, Φ800mm
Tread width (B)	80mm ~ 200mm	Must match the rail head width (e.g., QU80 track corresponds to a wheel width of approximately 100mm).
Rim height (h)	20mm ~ 50mm	Double flange (universal), single flange (low lateral force), flangeless (requires guides).
Material	Cast steel (ZG340-640), forged steel (45#), alloy steel (42CrMo)	Cast steel is economical and durable, while alloy steel offers high load-bearing properties.
Heat treatment hardness	Wheel surface hardness: HB300~380 or HRC45~55	Surface hardening improves wear resistance.
Single wheel load rating	5t ~ 500t	Allocation depends on the total crane weight and number of wheels (e.g., a four-wheel crane with a total load of 100t has a single wheel load of approximately 25t).
Maximum wheel pressure (P)	50kN ~ 800kN	Must match the track's load-bearing capacity (e.g., QU100 track allows for a wheel load of approximately 300kN).

Application

Crane wheels are the core components of the crane's operating mechanism, mainly used to support and move the crane equipment. They are widely used in bridge cranes, gantry cranes, cantilever cranes, port cranes (gantry cranes, shore container cranes), etc.