CNC Casters - Cast Iron Thrust Bearings With Polyurethane Rotating Wheels

Product introduction :
Designed for high-load, high-precision industrial environments, this CNC special heavy castor adopts cast iron thrust bearing structure with wear-resistant polyurethane rollers. It is suitable for CNC machine tools, automation equipment, heavy handling systems and other scenarios, providing stable load, shock absorption and corrosion resistance.

Technical parameters :

1. Basic Parameters

• Load Capacity :

  • Static Load : 500-5,000kg per caster

  • Dynamic Load : 200-2,500kg per caster

• Wheel Diameter Range : 50mm-300mm (±2mm tolerance)

• Operating Temperature : -30°C to +120°C

• IP Rating : IP54 (standard)/IP67 (optional)

2. Material Specifications

3. Performance Data

• Rolling Resistance: <1.5% of load

• Impact Resistance: Passed 50,000 cycles of 1.2m drop test

• Noise Level: ≤65dB (tested unloaded at 20℃)

• Service Life: >50,000km (on flat concrete surface)

4. Optional Features

• Brake Systems: Mechanical/Electromagnetic braking

• ESD Protection: Surface resistance 10^6-10^9Ω

• High-Temperature Version: Silicone-coated wheels (up to 180℃)

• Mounting Options: Flange plate/Threaded stem/Quick-release pin

5. Certifications

• Quality System: ISO9001:2015

• Safety Standards: CE/EN12530

• Material Compliance: RoHS/REACH

Product advantages :

1. Superior Load Capacity & Stability

• Heavy-duty cast iron construction withstands extreme loads up to 5,000kg per caster (static)

• Precision thrust bearings eliminate lateral play, maintaining ±0.5mm positional accuracy for CNC applications

• Reinforced wheel cores prevent deformation under shock loads (tested to 50,000+ impact cycles)

2. Enhanced Durability & Longevity

• Military-grade polyurethane wheels offer 3-5X longer lifespan than standard rubber wheels

• Pre-lubricated bearing system ensures maintenance-free operation for 50,000+ hours

• Corrosion-resistant options available (stainless steel bearings/salt-spray tested coatings)

3. Precision Performance Features

• Dynamic balanced wheels reduce vibration to <0.5mm/s (critical for sensitive CNC equipment)

• Custom hardness options (85A-95A) for optimized traction vs. floor protection

• Temperature-stable compounds maintain flexibility from -30°C to 180°C

4. Cost-Saving Advantages

• Modular design allows individual component replacement (75% lower maintenance costs)

• Energy-efficient rolling reduces equipment power consumption by up to 15%

• Custom tooling waived for orders >500 units (rapid ROI for OEMs)

FAQ :

1. What makes these casters suitable for CNC applications?

• Precision Stability: The cast iron thrust bearings minimize axial play, ensuring ±0.5mm positional accuracy, critical for CNC machines.

• Vibration Damping: Polyurethane wheels reduce harmonic vibrations by 40% compared to metal wheels.

• Heavy-Duty Load Capacity: Supports up to 5,000kg per caster (static) for large machining centers.

2. Can the wheels withstand oils/coolants in machine shops?

• Yes! Our oil-resistant polyurethane (PU90A) is tested to:

  • ASTM D471: <10% swell after 72h in ISO VG46 hydraulic oil

  • No cracking in coolant baths (pH 6-9 range)

3. What’s the lead time for custom orders?

• Standard sizes: 15 working days

• Custom designs: 25-30 days (includes 3D drawings approval)

• Rush service: 10-day expedited production (+15% fee)

4. What certifications do these casters have?

• Safety: CE, EN 12530, ISO 13849 (PL d)

• Materials: RoHS, REACH, FDA 21 CFR 177.2600 (food-grade option)

• Quality: ISO 9001:2015 with full traceability

Any other questions?

Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.
We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful quality control system, and professional customer service... We will offer professional services, high-quality products and favorable prices. We sincerely welcome domestic and foreign customers to cooperate with us!