CNC Machining Metal Parts

Why choose us?

1. Overall forging process

10,000-ton hydraulic forging: 10,000T forging press is used to ensure the integrity of the metal flow line and improve the fatigue resistance of the wheel.

Isothermal forging technology: reduce internal stress and improve material density.

2. Precision heat treatment

Rim hardening + tempering (QT process) : Surface hardness ≥300HBW, core to maintain toughness.

Laser hardening treatment (optional) : local rim strengthening to extend the maintenance cycle.

3. CNC finishing

CNC lathe processing: ensure the accuracy of wheel rim and tread (±0.1mm).

Dynamic balance test: residual unbalance ≤50g·m, in line with UIC 510-3 standards.

4. Surface strengthening technology

Shot peening: improve fatigue resistance and prolong service life.

Anti-rust coating (optional) : Suitable for high humidity or salt spray environments.

Product introduction

The 920mm railway wheels are forged in ER8/ER9 high carbon steel (EN 13262) in one block, with a 10,000-ton hydraulic forging and isothermal forming process to ensure ultra-high strength (tensile strength ≥880MPa) and wear resistance (life of more than 1 million km). After rim quenching and tempering (hardness 300HBW+) and CNC precision machining (±0.1mm accuracy), with optimized rim noise reduction design (reduce 15-20dB noise) and strict dynamic balance test (residual imbalance ≤50g·m), the product is perfectly suitable for heavy-duty freight, subway and high-speed EMUs and other scenes. Full process forging wheel solutions that comply with international standards such as UIC 510-3.

Our advantage

1. High strength and durable material

ER8/ER9 high carbon steel (according to EN 13262 standard), tensile strength ≥880MPa, hardness 240-290HBW, suitable for heavy rail and high-speed trains.

Anti-wear design: Special heat treatment of the rim, wear resistance increased by 30%, service life ≥1 million kilometers.

2. Noise reduction and shock absorption optimization

Anti-noise design: Optimize the rim profile to reduce wheel rail friction noise (noise reduction 15-20dB).

Shock absorption performance: dynamic balance optimization, reduce vibration, improve train running stability.

3. Strict security certification

Comply with ISO 1005-4, AAR M-107/M-208 and other international railway standards.

Ensure no internal defects through ultrasonic inspection (UT) and magnetic particle inspection (MT).

4. Strong adaptability

It is suitable for freight train, subway, light rail and high-speed EMU.

Different diameter wheels of 920mm-1250mm can be customized to meet the gauge requirements of various countries.

Detail data

FAQ

1.What is the Minimum Order Quantity?

5~1000 pcs. And we also accpet sample orders.

2. Can you manufacture according to customer's samples?

According to samples, we can make drawing, tooling and sample

3.How long will it take to make new samples according to customer's drawing or sample?

Totally 20 days. 10 days for tooling and another 10 days for sample.