15 Series Shock-absorbing PU Caster

5"-8" Shock-absorbing PU Iron Core Caster Wheels

Size: 5″, 6″, 8″
Load Capacity: 300-400KG
Caster Types: Swivel, Total Brake, Fixed
Mounting Options: Top Plate

15 Series – Shock-absorbing PU Iron Core Caster

Total Lock Brake | Stem with Safety Pin Hole | Heavy Duty Load Capacity | Impact-Resistant Tread
Heavy-Duty Shock-absorbing Caster | Chinese Shock-absorbing Caster Supplier | OEM & ODM Available


Basic Information

  • Available Sizes:5″, 6″, 8″

  • Load Capacity: 300-400KG

    • Our Heavy-Duty Polyurethane on Cast Iron Shock-Absorbing Casters are engineered specifically for demanding material handling applications that require a perfect balance of extreme load capacity and superior impact vibration damping. This high-performance caster features a premium, floor-protective Polyurethane (PU) tread chemically bonded to a rigid cast iron core, ensuring smooth and silent rolling without deformation under heavy loads ranging from 300kg up to 400kg per caster. Designed with an integrated, high-stiffness spring suspension system within a thickened, zinc-plated steel housing, it effectively absorbs site shocks and reduces noise over uneven floors, protecting both high-value cargo and the equipment itself. Available in versatile diameters from 5 to 8 inches and equipped with an ergonomic total lock brake and precision double ball bearings, this caster offers an ideal, low-maintenance mobility solution for modern industrial logistics, automotive assemblies, and automated warehouse environments.

Key Features

  1. Advanced Shock Absorption: Equipped with engineered spring suspension that absorbs impacts, dampens vibrations, and reduces noise. It protects fragile cargo from damage and extends the lifespan of both the caster and your equipment.

  2. Heavy-Duty Cast Iron Core: The solid cast iron core provides ultimate structural rigidity and prevents wheel deformation under extreme static and dynamic loads.

  3. Premium Floor-Protective PU Tread: The high-elasticity polyurethane tread ensures smooth, silent rolling while protecting factory floors (epoxy, concrete, tile) from scratches and streak marks. It is highly resistant to grease, oils, and mild chemicals.

  4. Ergonomic Total Lock Brake: The reinforced foot pedal securely locks both the wheel rolling and the swivel rotation simultaneously, guaranteeing absolute stability when stationary.

Where to Use Our Casters

  • Automotive Assemblies & AGVs: Ideal for automated guided vehicles, towline carts, and heavy component dollies moving through stamping and assembly workshops.

  • Aerospace & Aviation Ground Support: Used for moving high-value aircraft components, jet engine stands, and precision tooling maintenance fixtures.

  • Precision Electronic & Medical Manufacturing: Perfect for cleanroom transport carts holding delicate silicon wafers, optical instruments, or sensitive laboratory electronics.

  • Industrial Logistics & Heavy Machinery: Excellent for material handling racks, mobile workstations, and heavy-duty factory carts carrying fragile or unevenly distributed cargo.


Who We Work With

  • OEM / ODM Equipment Manufacturers: Customizing technical configurations (load capacity, spring tension, mounting top plates) to perfectly match your industrial machinery or cart designs.

  • Hardware Wholesalers & Distributors: Supporting international importers and hardware distributors with competitive wholesale pricing, stable production lead times, and comprehensive product catalogs (from heavy-duty to standard series) to help you dominate your local market.

  • Procurement Managers & Project Engineers: Delivering cost-effective, down-to-earth engineering support and reliable bulk supplies for factory upgrades and warehouse automation projects.

  • Global Sourcing Agents & Procurement Managers: Professional buyers looking for bulk OEM/ODM factory capacity with ISO, RoHS, and REACH quality guarantees.


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

Model15 Series-Shock-absorbing-PU-Iron-Core-Caster
Caster TypeSwviel/Total Brake/Fixed
Mounting TypeTop Plate
Bracket MaterialPressed Steel
Bracket Surface TreatmentE-coating
Wheel MaterialPU on Iron Core
Bearing TypeDouble Precision Bearing
Load Capacity300-400kg
Wheel Diameter5/6/8 inch (125/150/200mm)
Wheel Width50mm
Overall Height184/196/246mm
Plate Size159x114mm
Hole Spacing130x85mm
Hole Size13mm
Applicationautomotive assemblies, aerospace ground support, automated guided vehicles (AGVs), and heavy-duty industrial transport carts carrying fragile
Warranty1 Year
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