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Zhongshan Luma Caster Manufacturing Co., Ltd.

  • China,Zhongshan ,Guangdong
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China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load

  1. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
  2. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
  3. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
  4. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
  5. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load
  6. China 4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load

4" Extra Heavy Duty Casters Iron Core PU Caste Thicken Braceket 800kg Load

  1. MOQ: 50
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Supply Ability 100000
Color silver blue black braceket
location China
Usage | CNC engraver, tool cart, bench lathe
Mountingtype Plate
Packaging Details bags and cartons
Product name Heavy Duty 4" Iron Core PU Caste
Sample Free 1pcs
Payment Terms L/C,wechat,alipay
Material Cast polyurethane PU
Finish Zinc Plated
Delivery Time 5-10days
Braketype lockable + Swivel
Inches 4/5/6/8/ inches
Bearingtype Ball Bearing
Wheeltype brake
Model Number /
Place of Origin Zhongshan Guandong province China
Brand Name Luma

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  1. Product Details
  2. Company Details

Product Specification

Supply Ability 100000 Color silver blue black braceket
location China Usage | CNC engraver, tool cart, bench lathe
Mountingtype Plate Packaging Details bags and cartons
Product name Heavy Duty 4" Iron Core PU Caste Sample Free 1pcs
Payment Terms L/C,wechat,alipay Material Cast polyurethane PU
Finish Zinc Plated Delivery Time 5-10days
Braketype lockable + Swivel Inches 4/5/6/8/ inches
Bearingtype Ball Bearing Wheeltype brake
Model Number / Place of Origin Zhongshan Guandong province China
Brand Name Luma
High Light 4 inch heavy duty casters with thicken bracketiron core PU casters 800kg load capacityextra heavy duty casters with iron core
4 Inch Heavy Duty Iron Core PU Caster – 800kg Load Capacity, Black Steel Bracket, Orange PU Wheel

4" Heavy Duty Iron Core PU Caster 800kg | CNC Engraver & Tool Cart Wheels
Meta Description: 4 inch (100mm) iron core polyurethane caster with black painted steel yoke, orange PU tread Shore A 90–95, 6202 bearing, 280kg capacity. Ideal for CNC engraving machine, bench lathe, SMT cart, tool chest.

Keywords: 4 inch heavy duty caster, 100mm iron core PU wheel, 280kg caster wheel, CNC engraving machine caster, bench lathe wheels, tool cart caster, SMT trolley wheel, Shore A 90 PU, 6202 bearing caster

PRODUCT OVERVIEW

The 4" (100 × 50 mm) iron core PU caster is the most compact and maneuverable size in the K02 heavy-duty series. Built with a chemical-bonded orange polyurethane tread (Shore A 90–95) over a solid cast iron core, mounted in a 5 mm black painted steel top-plate fork with a 6202 deep groove ball bearing, this wheel delivers 800 kg of single-wheel load capacity — giving a 4-wheel system approximately 1,120 kg of total carrying power.

It is engineered for dry indoor industrial environments: machining workshops, electronics assembly lines, repair bays, laboratories and maintenance rooms.

⚠️ Not for seafood, brine, outdoor rain or salt spray. For washdown and marine use, choose our 304 stainless steel PU caster series.
SHARED SPECIFICATIONS
  • Wheel tread: Orange Polyurethane (PU) on Cast Iron Core
  • PU hardness: Shore A 90–95 (non-marking, wear resistant, shock absorbing)
  • Temperature range: -20 °C to +80 °C (short peak +100 °C)
  • Bearing: 6202 ZZ precision ball bearing (sealed option available)
  • Fork / bracket: Heavy duty steel plate, black powder-coated / painted
  • Wheel Width:​ 55 mm
  • Wheel Material:​ Iron Core PU
  • Bearing:​ 6303 Ball Bearing
  • Hole Spacing:​ 84 × 72 mm
  • Hole Diameter:​ 13 mm
  • Base Plate Size:​ 140 × 110 mm
  • Base Plate Thickness:​ 7 mm
  • Mounting Type:​ Fixed, Swivel, Brake
  • 100-4" (Diameter 100 mm)

    • Load Capacity:​ 800 kg
    • Overall Height:​ 145 mm
    • Model Numbers:​ R02-F-3PU (Fixed) / R02-S-3PU (Swivel) / R02-H-3PU (Brake)


MACHINE & EQUIPMENT APPLICATIONS

The 4 inch 800 kg caster is the go-to choice for compact standalone equipment that moves short distances inside one bay or between adjacent workstations.

CNC & Machining:
  • Desktop / benchtop CNC engraving machine (6090, 3040, 4060 models)
  • Mini milling machine, bench lathe, mini drill press stand
  • Small CNC router for wood, acrylic and aluminum prototyping
Electronics & SMT:
  • SMT magazine cart, PCB turnover trolley
  • Electronics rack dolly, component storage wagon
  • Wave solder fixture cart
Industrial Sewing & Textile:
  • Heavy duty industrial sewing machine base (garment, upholstery, leather shops)
  • Fabric cutting table on wheels
Tool & Maintenance:
  • Mechanic tool chest, roller cabinet, service cart
  • Mobile workbench, maintenance trolley
  • Portable vise stand
Laboratory & Inspection:
  • Lab instrument trolley (spectrometer, balance, oscilloscope cart)
  • Quality inspection cart, calibration equipment dolly
  • Sample transport wagon
Warehouse & Logistics:
  • Small parts bin wagon
  • Light-duty picking cart
  • Document / blueprint trolley

WHYCHOOSE 4 INCH?

Low mounted height keeps the center of gravity down — critical for precision equipment like CNC engravers and lab instruments. The 280 kg single-wheel rating handles machines up to 1 ton on a 4-wheel set. PU at Shore A 90 absorbs spindle vibration without leaving marks on epoxy or concrete floors.

KEY FEATURES
  • Iron core PU wheel – zero tire deflection under 800 kg load
  • Orange PU tread Shore A 90–95 – non-marking, oil & grease resistant
  • 6202 ball bearing – smooth roll, low push force
  • Black heavy steel yoke – economical, 5 mm thick
  • Swivel / rigid / brake / central hole – full mounting options
  • Floor protective on concrete, epoxy, tile
  • OEM customization: plate size, brake type, bearing seal, PU durometer
APPLICATIONS PARAGRAPH (SEO LONG-TAIL)

This 4 inch heavy duty iron core PU caster is designed for light-to-medium industrial equipment mobility inside factories and workshops. It is widely used on CNC engraving machines, bench lathes, mini milling machines, SMT magazine carts, PCB turnover trolleys, industrial sewing machine bases, mechanic tool chests, roller cabinets, lab instrument trolleys and quality inspection carts. The cast iron core carries the weight; the polyurethane tread cushions vibration from spindles, motors and small compressors while leaving no black mark on the floor. Working temperature -20 °C to +80 °C covers cold workshop mornings and summer metal shops. For food grade, washdown, seawater or outdoor use, switch to stainless steel caster — this model is strictly for dry industrial duty.

COMPARISON TABLE
Size Dia × Width Load / wheel PU Hardness Temp Best For
4" 100 × 50 mm 800 kg Shore A 90–95 -20~80°C CNC engraver, tool cart, bench lathe
5" 125 × 50 mm 900 kg Shore A 90–95 -20~80°C Laser cutter, control cabinet, table saw
6" 150 × 50 mm 1000 kg Shore A 90–95 -20~80°C CNC router, scissor lift, compressor
8" 200 × 50 mm 1200 kg Shore A 90–95 -20~80°C Large laser, generator, mobile racking
FAQ
Q: What machines use the 4 inch 800kg caster?
A: Small CNC engravers (6090/3040), bench lathes, tool chests, SMT carts, lab trolleys, industrial sewing machines.
Q: Is Shore A 90 PU too hard for epoxy floor?
A: No. 90A is the industrial standard — hard enough for load, soft enough to be non-marking on epoxy and concrete.
Q: Can this replace stainless casters in a seafood plant?
A: No. Black painted steel rusts under brine. Use 304 SS PU caster for marine/food washdown.
Q: Does the 4 inch really carry 280 kg?
A: Yes, per wheel under uniform load on flat floor. 4-wheel set ≈ 1,120 kg system capacity.
TAGS

4 inch caster 100mm heavy duty caster iron core PU wheel orange PU caster black bracket caster 6202 bearing caster 280kg caster wheel CNC engraver caster bench lathe wheel tool chest caster SMT cart wheel Shore A 90 PU non-marking industrial caster

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Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2008

  • Total Annual:

    1000,000.00-3000,000.00

  • Employee Number:

    100~200

  • Ecer Certification:

    Verified Supplier

Guangdong Zhongshan Luma Caster Manufacturing Co., Ltd. is a source manufacturer of industrial caster manufacturing integrating production, research and development and sales. Founded in 2008, the company has many years of experience in plastic molding and hardware manufacturing, and has independe... Guangdong Zhongshan Luma Caster Manufacturing Co., Ltd. is a source manufacturer of industrial caster manufacturing integrating production, research and development and sales. Founded in 2008, the company has many years of experience in plastic molding and hardware manufacturing, and has independe...

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Get in touch with us

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  • Zhongshan Luma Caster Manufacturing Co., Ltd.
  • No. 10, Industrial Avenue, Xiaolan Town, Zhongshan, Guangdong, China, 528415
  • https://www.industrialwheelcasters.com/

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