Yellow Pu Heavy Duty Caster Wheel

Our company has been established for nearly 20 years, and through years of development, we have built a strong technical team, production team, and sales team. Located in a beautiful coastal city in Shandong, China, we enjoy well-developed sea, land, and air transportation, as well as a nationwide railway network. It is only about a 2-hour drive from Qingdao Huangdao Port. The birthplace of polyurethane products is also located here. Wanhua, a large raw material manufacturer in China, is also situated nearby. We have unique advantages in technology, raw material procurement, and transportation. Our Yellow Pu Heavy Duty Caster Wheel has received unanimous praise from customers for its high quality and reasonable price.

Precautions in the Production yellow Pu heavy duty caster Wheel Process

1.Material Selection and Quality Control

Polyurethane material: Select the appropriate polyurethane hardness (e.g., Shore A 80°–95°) and formulation (hydrolysis-resistant, high-temperature-resistant, etc.) based on the usage environment (temperature, load, chemical exposure, etc.).

2.Cast iron wheel core: Ensure the cast iron is free from defects such as sand holes or air pockets, and perform surface treatment (e.g., sandblasting, anti-rust coating) to enhance bonding strength with polyurethane.

3.Bonding Process

The surface of the cast iron wheel core must be cleaned, roughened (e.g., sandblasting or grooving), and coated with a specialized polyurethane adhesive.

Control the uniformity of adhesive application and curing time to avoid delamination or debonding.

4.Casting and Vulcanization Process

During polyurethane casting, control temperature, humidity, and mixing ratios to prevent bubbles or uneven curing.

During vulcanization (curing), control the temperature curve and time to ensure the polyurethane achieves the designed hardness and elasticity.

5.Dimensional Accuracy and Balance

Wheel outer diameter, concentricity, and tread profile must meet tolerance requirements to avoid wobbling or uneven wear during operation.

For high-speed applications, perform dynamic balance testing to reduce vibration.

6.Environmental Control

Control dust and humidity in the production workshop to prevent impurities from mixing into the polyurethane or affecting bonding effectiveness.

7.Performance Testing of the yellow Pu heavy duty caster Wheel

Finished products must undergo load testing, rolling resistance testing, wear resistance testing (e.g., DIN 53516), and chemical resistance testing to ensure compliance with standards.

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