Extra Heavy Duty 8 Inch Shock Absorbing Caster Pu Iron Core Wheel 420kg Loading Large Lasers Generators Mobile Racking Steel Handling.

PRODUCT PAGE 4 — 8 INCH (200mm) KU Series Dual Spring Caster

8 Inch KU Series Dual Spring Shock Absorbing Caster – Red Iron Core PU Wheel, Galvanized Steel Bracket, 420kg Load Capacity

 8" KU Dual Spring Caster | Red PU Iron Core | 420kg | Galvanized

 Extra heavy duty 8 inch KU series dual spring shock absorbing caster with red polyurethane iron core wheel and galvanized steel bracket. 420kg load capacity, 6203 bearing. For large lasers, generators, mobile racking, steel handling. OEM/ODM available.

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PRODUCT OVERVIEW

The KU Series 8 Inch Dual Spring Shock Absorbing Caster is the largest and most capable wheel in the KU range. Designed for extra-heavy equipment and the most demanding industrial environments, the KU-8 delivers a class-leading 420kg per wheel (1,680kg on a 4-wheel set).

With its 200mm diameter, the KU-8 rolls effortlessly over floor irregularities, expansion joints, cables, and debris that would stop smaller wheels cold. The red polyurethane tread on a solid cast iron core handles extreme loads without deflection, while the dual-spring suspension cushions equipment and floors from the harshest shock loads. The heavy-duty galvanized steel bracket provides the structural backbone for the entire assembly.

When the application calls for maximum capacity, maximum ground clearance, and maximum durability — the answer is KU-8.

TECHNICAL SPECIFICATIONS

MATERIAL ADVANTAGES — WHY RED PU + IRON CORE + GALVANIZED BRACKET?

RED POLYURETHANE TREAD

• Non-marking on epoxy, concrete, PVC, and tile floors
• High abrasion resistance — outlasts standard rubber wheels 3× to 5×
• Oil, grease, and chemical resistant (shop-floor safe)
• Red pigment acts as a visual wear indicator (fades when replacement due)
• Shore A 90–95 balances load capacity with shock absorption

CAST IRON CORE

• Zero radial deflection under 420kg+ loads (no "flat spot" memory)
• Superior heat dissipation vs. aluminum under continuous rolling
• Provides the structural backbone for the PU tread bond
• Ideal for the heaviest stationary equipment that moves occasionally

GALVANIZED STEEL BRACKET (Extra Heavy Duty)

• Zinc-plated finish resists rust and corrosion in humid environments
• Far superior to painted brackets (no paint chips → no exposed steel)
• Reinforced fork legs handle the highest torque and side loads
• Galvanized finish = longer service life, lower maintenance cost

DUAL SPRING SUSPENSION (The KU Advantage)

• Two independent springs absorb vertical and lateral shocks
• Protects sensitive equipment (electronics, instruments, optics)
• Reduces operator fatigue when pushing extreme loads
• Minimizes vibration transfer to the floor structure

8 INCH — APPLICATION GUIDE (Specific Products & Environments)

The 8" KU caster is the maximum-capacity, maximum-clearance wheel in the series. It is purpose-built for the largest, heaviest equipment and the toughest floor conditions.

LARGE FORMAT LASER & CUTTING EQUIPMENT

• Large format fiber laser cutting machines (2040, 2060, 2080)
• High-power CO₂ laser cutters
• Large plasma cutting tables
• Waterjet cutting machine bases
• Laser tube cutting machines

POWER GENERATION & AIR SYSTEMS

• Large industrial air compressors (screw compressor skids)
• Industrial diesel & natural gas generators (100+ kVA)
• UPS battery banks & power modules
• Transformer & switchgear assemblies
• Welding robot bases (large gantry systems)

STEEL & METAL HANDLING

• Steel coil carts & coil upenders
• Steel plate handling trolleys
• Rebar & structural steel transport dollies
• Metal stamping press auxiliaries
• Foundry & casting equipment bases

HEAVY MANUFACTURING EQUIPMENT

• Large injection molding machines (500T+ clamp force)
• Extrusion lines (aluminum, PVC, WPC)
• Rolling mill auxiliaries
• Conveyor system support trolleys (heavy-duty)
• Assembly line skids (automotive & appliance)

WAREHOUSE & LOGISTICS

• Mobile racking systems (heavy-duty, high-density)
• Warehouse mezzanine support trolleys
• Shipping container dollies
• Heavy-duty loading dock carts
• Forklift attachment & battery cart bases

SPECIALTY & MRO

• Aircraft ground support equipment (GSE) dollies
• defense equipment transport skids
• Mining & quarry equipment auxiliaries
• Shipyard & marine equipment carts (covered / galvanized)
• Construction site material carts (rebar, formwork)

TYPICAL ENVIRONMENTS / FACILITIES

• Heavy steel fabrication & processing plants
• Large format laser cutting job shops
• Power generation & utility facilities
• Injection molding & extrusion plants
• Automotive manufacturing & Tier-1 supplier plants
• Aircraft MRO & GSE facilities
• Shipyards & marine engineering works
• Mining & heavy equipment service centers
• Large-scale warehouse & distribution centers
•  defense contractor facilities

WHY CHOOSE 8 INCH OVER 4", 5", OR 6"?

• MAXIMUM load capacity — 420kg per wheel, 1,680kg per set
• MAXIMUM ground / obstacle clearance (200mm diameter)
• Rolls over expansion joints, debris, and rough floors effortlessly
• LOWEST rolling resistance for the heaviest equipment
• Best choice for equipment weighing 1,000kg to 1,680kg

• Under 400kg per wheel and smooth floors? 6" is more compact.
• Need even more capacity? Ask about our custom heavy-duty series (500kg–1,000kg+ per wheel).

KEY FEATURES (Scannable Bullets)

• ✓ Dual spring shock absorption (vertical + lateral)
• ✓ Red PU tread Shore A 90–95, non-marking, oil-resistant
• ✓ Cast iron core — zero deflection under heavy load
• ✓ Galvanized steel bracket — anti-rust, maintenance-free
• ✓ 6203 precision ball bearing — smooth, low rolling resistance
• ✓ 3 mounting styles: Rigid / Swivel / Swivel + Brake
• ✓ Floor protective on concrete, epoxy, tile, PVC
• ✓ Temperature range -20 °C to +80 °C
• ✓ OEM / ODM customization available

LONG-TAIL SEO APPLICATIONS PARAGRAPH

The 8 inch KU series dual spring shock absorbing caster with red polyurethane iron core wheel and galvanized steel bracket is the flagship heavy-duty wheel for large format fiber laser cutting machines (2040/2060/2080), high-power CO₂ lasers, plasma cutting tables, waterjet cutters, large industrial air compressors, diesel generators, UPS battery banks, steel coil carts, steel plate handling trolleys, heavy injection molding machines (500T+), aluminum extrusion lines, mobile racking systems, and aircraft ground support dollies. The dual spring suspension cushions the harshest floor shocks and vibrations, protecting precision optics, electronics, and structural integrity. The 200mm diameter rolls effortlessly over expansion joints, cables, and debris, while the cast iron core supports 420kg per wheel without deflection. Trusted in heavy steel fabrication, power generation, automotive manufacturing, shipyards, mining, and defense facilities worldwide.

FREQUENTLY ASKED QUESTIONS

• Q: Is 420kg per wheel realistic?
  A: Yes — tested under uniform load on flat, level ground. A 4-wheel set safely supports 1,680 kg. Dynamic loads (drops, impacts) should be derated by 25–30%.
• Q: What equipment needs an 8" caster?
  A: Large lasers (2040+), generators, compressors, steel coil carts, mobile racking, large injection molders, and aircraft GSE dollies.
• Q: Can the 8" wheel handle rough or uneven floors?
  A: Yes — the 200mm diameter and dual springs are specifically designed for expansion joints, debris, and irregular surfaces.
• Q: Is the bracket strong enough for side loads?
  A: The reinforced galvanized fork legs handle both vertical and lateral loads. For extreme side loads, request our heavy-duty precision-machined fork option.
• Q: Do you manufacture larger or higher-capacity wheels?
  A: Yes — we produce custom heavy-duty casters up to 1,000kg+ per wheel. Contact us with your specifications.

CUSTOM ORDER — WE MANUFACTURE WHAT YOU NEED

We are a professional industrial caster manufacturer with 10+ years of factory experience. We welcome OEM / ODM orders and can customize:

• Wheel material: PU / TPR / Rubber / Nylon / PP / Phenolic
• Wheel hardness: Shore A 70 to 100 (or D scale on request)
• Wheel color: Red / Orange / Black / Gray / White / Custom Pantone
• Core material: Iron / Aluminum / Nylon
• Bracket finish: Galvanized / Zinc-plated / Stainless 304 / Painted
• Mounting: Top plate / Threaded stem / Bolt hole / Central pin
• Brake type: Side brake / Total lock / Directional lock
• Bearing: 6202 / 6203 / 6204 / tapered roller / custom
• Load rating: From 100 kg to 1,000 kg+ per wheel
• Special features: Anti-static, conductive, high-temp, low-temp, food-grade, explosion-proof

Contact us with your requirements — we'll engineer the right caster-wheel-bracket combination for your application.

TAGS / HASHTAGS

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