Jiaxing Xingjie Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of heavy duty polyurethane casters in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy premium heavy duty polyurethane casters made in China here from our factory.
Products Description
The heavy duty polyurethane caster is a high-performance mobility solution engineered for heavy equipment, industrial machinery, workbenches, and demanding workshop applications. With a 300kg load capacity per caster and PU on Cast Iron core wheel construction, this heavy duty PU caster provides reliable support with smooth 360° swiveling, exceptional durability, and superior floor protection - essential for industrial environments where heavy loads must be moved efficiently and safely.
The impact on your daily operations: When heavy equipment, workbenches, and machinery need to be repositioned for maintenance, reconfiguration, or daily operation, reliable high-capacity casters are essential for safety and efficiency. The PU on Cast Iron core wheel delivers exceptional load-bearing capacity with floor-protective rolling - allowing heavy loads to move smoothly with controlled effort, reducing the risk of worker injury and equipment damage. The robust construction ensures reliable performance even under demanding conditions. The 125mm diameter with 50mm width provides excellent rolling efficiency and load distribution.
The PU on Cast Iron core wheel offers the ultimate combination of load capacity, durability, and floor protection. The cast iron core provides exceptional structural strength and heat dissipation for heavy loads, while the PU tread delivers smooth, quiet, non-marking rolling that protects factory and workshop floors. This construction is specifically engineered for demanding industrial applications where both high load capacity and floor protection are essential. Optional wheel materials (TPR, Nylon, PP, Cast Iron, PU on Iron, Rubber on Cast Iron) and bearing options (Roller Bearing, Double Ball Bearing) are available for applications with specific floor protection, noise reduction, impact resistance, or extreme load requirements.
Available with multiple top plate mounting options (114 × 98mm, 140 × 127mm, and 114 × 88mm) for flexible installation across different equipment types. Available in 4″, 5″, 6″, and 8″ diameters with multiple wheel material and bearing options. The heavy-duty construction ensures reliable performance even in the most demanding industrial environments - making this heavy duty polyurethane caster the ideal choice for heavy equipment and machinery applications.
Technical Specifications
|
Parameter |
Specification |
|
Model No. |
815S1ZRWG501I |
|
Caster Type |
Swivel Caster |
|
Wheel Diameter |
125 mm (5″) - 4″, 6″, 8″ available |
|
Wheel Width |
50 mm |
|
Wheel Material |
PU on Cast Iron Core |
|
Load Capacity |
300 kg per caster |
|
Mounting Type |
Top Plate (multiple options) |
|
Top Plate Size (Option 1) |
114 × 98 mm |
|
Top Plate Size (Option 2) |
140 × 127 mm |
|
Top Plate Size (Option 3) |
114 × 88 mm |
|
Offset |
40 mm |
|
Load Height |
170 mm |
|
Bearing Options |
Roller Bearing, Double Ball Bearing |
|
Wheel Options |
PU, TPR, Nylon, PP, Cast Iron, PU on Iron, Rubber on Cast Iron |
Key Features
300kg Load Capacity - reliable support for heavy equipment and machinery
PU on Cast Iron Core Wheel - exceptional load capacity with floor-protective rolling
Smooth 360° Swivel Action - effortless steering and maneuverability
Multiple Top Plate Options - 114×98mm, 140×127mm, and 114×88mm for flexible installation
Multiple Bearing Options - Roller Bearing or Double Ball Bearing available
Multiple Size & Material Options - 4″–8″ sizes with 7 wheel materials
Why Choose Xingteng TENG® Casters?
30+ Years of Manufacturing Excellence
Xingteng Group has been manufacturing casters since 1997, with manufacturing origins predating our official registration. With over 30 years of continuous innovation and quality improvement, our experience means we understand not just how to make casters, but how to make them right for your specific application - especially when it comes to heavy duty polyurethane casters for demanding industrial environments.
ISO 9001:2015 Certified Quality Management
Our quality management system is certified to ISO 9001:2015, ensuring consistent product quality, traceable production processes, and continuous improvement - exactly what industrial buyers expect from a reliable supplier.
TUV Product Certification
Multiple product series have passed TUV testing and certification - proof that our products meet internationally recognized safety and performance standards.
RoHS 2.0 Compliant
All products meet RoHS 2.0 European environmental protection standards, ensuring your supply chain remains compliant with international environmental regulations.
In-House Testing Laboratory
Our dedicated testing facility is equipped with dynamic loading testers, impact testers, static pressure testers, hardness testers, brake life testers, salt spray testers, optical profile projector, and caster creep tester - every heavy duty polyurethane caster is verified before it leaves our factory.
30,000+ sqm Manufacturing Facility
Annual production capacity exceeding 10 million casters, with over 110 automated production machines including precision injection molding, automatic punching, riveting, and assembly lines.
TENG® - Our Registered Brand
TENG® is registered in China (since 2006) and internationally under the Madrid System in France, Germany, the United States, Japan, Australia, and Canada (since 2012) - proof of our long-term commitment to brand quality and global presence.












Frequently Asked Questions
Q1: What is the load capacity of this heavy duty polyurethane caster?
A: This heavy duty polyurethane caster has a load capacity of 300 kg per caster. For heavy equipment or workbenches with four casters, the total capacity is 1,200 kg. However, please note that the effective load per caster should be calculated as Total Load ÷ 3 (allowing for uneven weight distribution) rather than Total Load ÷ 4.
Q2: What is the advantage of the PU on Cast Iron core wheel construction?
A: The PU on Cast Iron core construction offers the best combination for heavy-duty applications: Cast iron core - provides exceptional structural strength, heat dissipation, and durability under heavy loads; PU tread - delivers smooth, quiet, non-marking rolling that protects factory and workshop floors. This construction is specifically engineered for demanding industrial environments where both high load capacity and floor protection are essential. Unlike standard PU wheels with plastic cores, the cast iron core provides superior structural integrity for the most demanding applications.
Q3: What makes polyurethane the preferred material for heavy-duty industrial casters?
A: Polyurethane is widely used for heavy-duty industrial casters because: Wear resistance - outlasts rubber and plastic in industrial environments; Floor protection - non-marking tread protects factory and workshop floors; Oil and grease resistance - maintains integrity even in environments with lubricants and chemicals; High load capacity - supports heavy loads without deformation; Quiet operation - smooth, quiet rolling compared to steel or hard plastic wheels. These characteristics make PU the preferred choice for demanding industrial applications.
Q4: What wheel material options are available for this heavy-duty caster?
A: This heavy-duty caster series is available with seven wheel material options: PU on Cast Iron - standard option offering exceptional load capacity with floor protection; PU - excellent wear resistance and floor protection; TPR - quiet, non-marking operation; Nylon - superior impact resistance; PP - lightweight and chemical-resistant; Cast Iron - extreme durability for the heaviest loads; Rubber on Cast Iron - superior shock absorption with iron core strength. Choose based on your load, floor type, and application requirements.
Q5: What are the available top plate mounting options?
A: This caster is available with three top plate options to suit different equipment mounting requirements: Option 1 - 114 × 98mm; Option 2 - 140 × 127mm; Option 3 - 114 × 88mm. Please specify your required plate size and bolt hole pattern when ordering to ensure compatibility with your equipment.
Q6: What is the difference between Roller Bearing and Double Ball Bearing?
A: Roller Bearings use cylindrical rollers to handle heavier radial loads, making them ideal for high-load, slow-speed applications where durability is the priority - recommended for heavy equipment and machinery. Double Ball Bearings use two rows of balls to handle both radial and moderate thrust loads, providing smoother rolling with less friction - ideal for applications requiring frequent movement and maneuverability. Choose based on your load, speed, and maneuverability requirements.
Q7: What equipment is this heavy duty polyurethane caster suitable for?
A: This heavy duty polyurethane caster is suitable for: Heavy equipment - industrial machinery and large equipment; Heavy workbenches - heavy-duty workshop workbenches; Industrial carts - heavy-duty platform trucks and material handling carts; Moving heavy loads - equipment relocation and positioning; Factory machinery - production line equipment and machine stands.
Q8: What are the available sizes for this heavy duty polyurethane caster?
A: This heavy duty polyurethane caster is available in 4-inch, 5-inch, 6-inch, and 8-inch diameters. The 5-inch option (featured here) offers the best balance of load capacity, rolling efficiency, and load height (170mm). 4-inch is suitable for applications requiring lower load height; 6-inch and 8-inch offer superior rolling efficiency over floor transitions and higher load heights. Choose based on your equipment design and floor conditions.
Q9: How does the 170mm load height benefit heavy equipment applications?
A: The 170mm load height provides: Adequate clearance - sufficient space for equipment base and floor clearance; Stability - appropriate center of gravity for equipment stability; Ergonomic handling - comfortable height for maneuvering heavy loads; Floor clearance - enough clearance for floor irregularities without bottoming out.
Q10: Is this caster suitable for use with other wheel materials?
A: Yes. While PU on Cast Iron is the standard configuration, this caster series offers multiple wheel material options to suit different applications. We can configure the caster with PU, TPR, Nylon, PP, Cast Iron, PU on Iron, or Rubber on Cast Iron wheels to meet your specific requirements. Please contact our sales team to specify your preferred wheel material.
Q11: What certifications does Xingteng hold?
A: Xingteng holds ISO 9001:2015 Quality Management certification, TUV Product Certification for multiple product series, and RoHS 2.0 environmental compliance. We are also a recognized AA-level "Contract-Honoring and Credit-Worthy Enterprise" in Zhejiang Province.
Q12: What is the typical lead time for this heavy duty polyurethane caster?
A: Standard lead time is typically 20-45 days depending on order quantity, wheel material selection, bearing option, and size specification. For urgent requirements, please contact our sales team for expedited options. Large-volume orders may require additional lead time - we will confirm exact timing at the time of order placement.
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