21 Series Kingpinless Alu Core Yellow PU Caster

21 Series Kingpinless Alu Core Yellow PA Stainless Steel Caster

Kingpinless Heavy-Duty Rig | High-Impact PU Wheel | Smooth & Non-Marking Roll | Corrosion & Washdown Resistant
Heavy-duty Kingpinless Caster | Chinese Kingpinless Caster Supplier | OEM & ODM Available

Basic Information

• Available Sizes: 4″, 5″, 6″, 8″

• Load Capacity: 450-800KG

• Designed for demanding industrial environments, our Kingpinless Aluminum Core Polyurethane (PU) Casters combine exceptional durability with smooth, low-noise mobility. By eliminating the traditional central kingpin—the most common point of swivel failure—these casters provide unmatched impact resistance and load capacity. The lightweight, corrosion-resistant aluminum core offers superior heat dissipation and structural strength, while the premium non-marking polyurethane tread ensures low rolling resistance, floor protection, and long-lasting performance.

Key Features

1. Kingpinless Swivel Construction: Designed without a central kingpin to eliminate cross-thrust failure and wear, delivering ultimate shock resistance, high swivel stability, and extended service life under heavy loads.

2. Aluminum Core Strength: The precision-engineered aluminum core provides superior load-bearing capacity and rust resistance while remaining significantly lighter than iron, aiding heat dissipation to extend tread longevity.

3. Floor-Protective & Quiet PU Tread: The high-grade polyurethane tread rolls smoothly, absorbs vibrations, and operates quietly without leaving marks or scuffs on sensitive industrial floors.

4. Low Rolling Resistance & Ergonomics: High-precision ball bearings combined with a optimized tread profile reduce push/pull force, minimizing operator fatigue and improving workplace safety.

Where to Use Our Casters

• Manufacturing & Assembly Lines: Ideal for heavy material handling carts, automated guided vehicles (AGVs), and equipment racks operating on factory floors.

• Warehousing & Logistics Centers: Built to handle continuous towing, high-frequency movement, and heavy-duty order picking carts in fast-paced distribution hubs.

• Automotive Industry: Tailored for heavy-duty body shop carts, engine transfer dollies, and precision fixture transports where smooth movement and reliability are critical.

• Aerospace & Maintenance Facilities: Perfect for mobile work platforms, tool carts, and aerospace component handling where non-marking floors and zero-failure mobility are required.

Who We Work With

• Industrial Equipment Manufacturers (OEMs): We partner with equipment builders looking for reliable, high-performance caster solutions integrated directly into their standard or custom product lines.

• System Integrators & Automation Suppliers: We support automation engineers specifying durable, precision-engineered casters for custom AGVs, AMR chassis, and automated transport carts.

• Warehouse & Logistics Operators: We work with logistics managers seeking low-maintenance, heavy-duty replacement casters to reduce downtime and improve fleet efficiency.

• Global Distributors & Supply Partners: We build long-term relationships with industrial suppliers, material handling distributors, and catalog resellers providing top-tier caster solutions to their markets.

OEM / ODM & After-Sales Support

• Customization Options: wheel type, bracket design, brake system, mounting method, packaging, laser logo printing, etc.

• Warranty: 1 Year

• Lead Time: 15–30 days depending on order quantity

• Production Control: High-quality materials and strict process management ensure strength, stability, and long service life