Xiamen Goldcattle: Precision Machining Parts Manufacturer
We specialize in custom machining parts for industrial, automotive, and aerospace industries. With 25+ years of experience, we deliver high-precision parts that meet global quality standards.
Our factory in Xiamen covers 1,000㎡, equipped with advanced CNC machines to handle small to large batch orders with consistent quality.
Our Machining Processes
CNC Milling & Turning
We use 3-axis, 4-axis, and 5-axis CNC machines for complex parts. Tolerance control down to ±0.005mm for critical features. Great for automotive and aerospace parts.
Precision Lathe Turning
Specialized in cylindrical parts. We handle bar stock up to 150mm diameter. Surface finish Ra 0.8μm to 3.2μm, ideal for hydraulic components.
Surface & Cylindrical Grinding
Grinding for ultra-smooth surfaces. We process hardened steel up to 60 HRC. Perfect for bearing components and precision tools.
Drilling & Tapping
Drill holes from 0.5mm to 50mm diameter. Tap metric/imperial threads (M1 to M30). We ensure thread accuracy for easy assembly.
EDM Wire Cutting
Cut complex shapes in hard metals (up to 65 HRC). No tool wear, tight tolerance ±0.002mm. Ideal for mold parts and small precision components.
Surface Finishing & Polishing
Hand and machine polishing for Ra 0.05μm finish. Offer anodizing, plating, and passivation. Improve corrosion resistance and appearance.
Materials We Work With
Carbon Steel (1018, 1045, 4140)
Cost-effective and easy to machine. 1045 steel is heat-treatable for harder surfaces (up to 55 HRC). Used for shafts and fasteners.
Stainless Steel (304, 316)
Corrosion-resistant and food-grade options. 316 works well for marine use. We use specialized tools to avoid work hardening.
Aluminum (6061, 7075)
Lightweight and strong. 6061 is easy to weld; 7075 is aerospace-grade. Perfect for automotive and aerospace parts.
Copper & Brass (C11000, C36000)
Great electrical/thermal conductivity. Brass is wear-resistant. We make burr-free copper parts for electrical components.
Quality & Execution Standards
- ISO 9001:2015 – Quality Management System Certification
- ASTM A36 – Standard for carbon steel structural parts
- DIN 7168 – Standard for precision turned parts tolerances
- GB/T 1804-m – General tolerance for machining parts (medium grade)
- ASME Y14.5 – Geometric Dimensioning and Tolerancing (GD&T)
- RoHS Compliance – For parts used in electronic equipment
- ASTM B221 – Standard for aluminum alloy extrusions
All our processes follow these standards. This ensures consistency for our global customers.
Testing & Performance Data (For Reference Only)
Dimensional Tolerance
• CNC Milling: ±0.005mm (critical features)
• Lathe Turning: ±0.01mm (general features)
• Grinding: ±0.001mm (surface finish)
Hardness (HRC)
• 1045 Steel (heat-treated): 45-50 HRC
• 4140 Steel (heat-treated): 50-55 HRC
• 304 Stainless Steel: 18-22 HRC
Tensile Strength (MPa)
• 6061 Aluminum: 276 MPa (T6 temper)
• 7075 Aluminum: 572 MPa (T6 temper)
• 316 Stainless Steel: 550 MPa
Surface Roughness (Ra, μm)
• CNC Machining: 1.6-3.2 μm
• Grinding: 0.2-0.8 μm
• Polishing: 0.05-0.2 μm
* All data above is for reference only. Actual values may vary based on material batch and process parameters.
Custom Machining Services
Design Support
Our engineers review your CAD files for manufacturability. We suggest cost-saving changes without compromising quality. We work with all common file formats (STEP, IGES, DWG).
Small & Large Batch Production
We handle prototype runs (1-10 parts) to mass production (10,000+ parts). Our flexible production line adapts to your order size and timeline.
Full-Service Solution
From raw material sourcing to final inspection and packaging. We ship directly to your warehouse or assembly line. We offer fast lead times (3-15 days for most orders).
Post-Machining Services
We provide deburring, heat treatment, coating, and assembly. All secondary processes are done in-house to control quality and lead time.
Applications of Our Machining Parts
Automotive Industry
Engine components, brake parts, suspension parts, transmission components.
Aerospace
Aircraft structural parts, landing gear components, avionics housings.
Electronics
Heat sinks, connector housings, sensor components, PCB fixtures.
Construction Machinery
Hydraulic valve bodies, pump components, gear housings, structural brackets.
We also customize machining parts for medical equipment, marine equipment, and agricultural machinery. Our team works closely with you to meet your specific application needs.
What Our Customers Say
“Goldcattle delivered our aerospace parts with perfect tolerance. The lead time was 3 days faster than promised. We’ve been working together for 2 years and quality is always consistent.”
— John D., Aerospace Component Supplier (USA)
“We needed custom hydraulic parts for our construction machines. Goldcattle’s engineering team helped optimize our design to cut costs by 15%. Parts fit perfectly on first try.”
— Maria S., Construction Machinery Manufacturer (Germany)
“The stainless steel parts for our marine equipment have held up perfectly in saltwater. Goldcattle’s quality control is top-notch. We never have to worry about returns or defects.”
— Robert K., Marine Equipment Supplier (Australia)
Get Custom Machining Parts From Goldcattle
We provide one-stop machining solutions from design review to production and inspection. Contact us today for a free quote on your custom machining parts.
Email: charlie@plasticmetalparts.com
Address: Xiamen, Fujian, China
Phone: +86-18150097490
