Alloy Steel Precision Cast Construction Machinery Parts

Core strengths
Investment Casting Dimensional Accuracy: CT6 Grade (±0.3mm/100mm)
Computer Simulation of Gating System Optimization (Reduces shrinkage porosity defects)
Customized Heat Treatment Processes (Quenching and tempering, Austempering, etc.)

Core Product Introduction

1. Excavator Bucket Teeth & Cutting Edges
Function: Directly contacts materials, undertaking excavation and crushing tasks.
Performance:
Hardness HRC 45-55, 3 times the wear resistance of ordinary steel.
Impact toughness ≥50J (-20℃ low-temperature impact).
Compatible with mainstream models on the market.
Features:
Composite casting process (high-chromium alloy reinforcement on the cutting edge).
Modular design for quick replacement.

2. Hydraulic Valve Blocks & Pump Bodies
Function: Core pressure-bearing components of the hydraulic system.
Performance:
Pressure capacity ≥35MPa (ISO 4401 standard).
Internal flow channel surface roughness ≤1.6μm.
Withstands high-pressure pulse tests ＞1 million cycles.
Features:
One-piece forming eliminates the risk of welding leaks.
Ability to integrate complex oil passage channels.

3. Slewing Bearing Gears 
Function: Power transmission for the slewing platform of construction machinery.
Performance:
Tooth surface hardness HRC 58-62 (carburising and quenching).
Accuracy grade DIN 6 (tooth profile error ≤0.03mm).
Service life ≥8000 hours.
Features:
Dual-frequency quenching technology increases tooth root fatigue resistance by $40\%$.
Supports customisation of non-standard modulus.

4. Pins & Connecting Rods
Function: Connecting critical moving components.
Performance:
Tensile strength ≥1000MPa (42CrMo material).
Surface hardness HRC 50-55, with core toughness maintained.
Features:
Medium-frequency quenching + deep-cryogenic treatment.
Optional hard chromium plating or DLC coating.

Application Scenarios
Earthmoving Machinery: Bucket teeth, boom connectors

Mining Equipment: Crusher jaw plates, screening machine liners

Lifting Machinery: Pulley blocks, jib pins

Road Machinery: Asphalt paver screeds

Technical Support and Services

Manufacturing & Technical Capabilities
Rapid Prototyping: Provides 3D printed wax pattern verification (5-7 days).

Batch Delivery: Monthly capacity of 100 tons, supporting JIT (Just-In-Time) supply.

Quality Traceability: Provides mechanical property test reports for every batch.

Technical Support: Offers failure analysis and improvement solutions.

Whether for extreme working conditions in a mine or typical municipal engineering scenarios, our alloy steel castings provide construction machinery with solutions that are more wear-resistant, more reliable, and longer-lasting, backed by the dual guarantee of material science and precision craftsmanship.