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CORE DIVISION 01

CNC Precision Machining Division

High-Precision Multi-Axis CNC Milling, Turning, and Swiss Lathe Production.

The CNC Precision Machining Division at JYH Prototype forms the backbone of our high-tolerance manufacturing capabilities. Featuring over 100 multi-axis CNC machines including simultaneous 5-axis trunnion centers, horizontal machining cells, and live-tooling Swiss turning lathes, we deliver mission-critical parts with tolerances down to ±0.01mm in metals and plastics.

5-Axis, 4-Axis & 3-Axis CNC
Tolerances Down to ±0.01mm
Delivery Fast as 3 Days

Built for Precision, Scalability and Speed

Shenzhen Jinyihe Technology combines advanced multi-axis CNC machines, certified metrology, and deep production expertise to bring high-complexity parts to market with zero delays.

Simultaneous 5-Axis Milling

Complex organic contours, aerospace turbine impellers, and medical implants completed in single setups.

Mill-Turn & Swiss Lathes

High-speed turned shafts, threaded fittings, and micro-pins with dual-spindle live tooling.

Extensive Alloy Inventory

Over 50 certified grades of aluminum, stainless steel, titanium, brass, and engineering polymers in stock.

100% In-House CMM QA

Every tight-tolerance feature certified on Zeiss Coordinate Measuring Machines prior to dispatch.

In-Depth Manufacturing Analysis

Discover how our advanced machinery, certified cleanroom facilities, and strict quality control protocols ensure reliable execution for mission-critical hardware.

ARTICLE 01 Simultaneous 5-Axis Machining for Complex Geometries

Simultaneous 5-Axis Machining for Complex Geometries

Single-Setup Machining of Organic Contours, Impellers, and Manifolds

Traditional 3-axis machining requires multiple re-fixturing steps, which introduce cumulative datum errors and increase setup costs. Our 35+ simultaneous 5-axis machining centers eliminate these inaccuracies by tilting and rotating the workpiece while cutting. This permits shorter, more rigid endmills that eliminate deflection, yielding superior surface finishes and true positional accuracy within 0.01mm.

Key Engineering Takeaways
  • Full 5-axis simultaneous tool paths for aerospace impellers and complex turbine blisks
  • Elimination of complex secondary fixtures, reducing lead times from weeks to days
  • Micro-surface finishing directly off the tool down to Ra 0.4μm
ARTICLE 02 High-Speed CNC Turning & Swiss Lathe Production

High-Speed CNC Turning & Swiss Lathe Production

Precision Cylindrical Components with Live Milling and Cross-Drilling

For cylindrical and symmetrical hardware, our CNC turning fleet features dual spindles, live-tool turrets, and sub-spindle part handoffs. From high-diameter heavy alloy flange rings to miniature Swiss-turned surgical bone screws and electronic connector pins, our machines execute turning, cross-milling, axial tapping, and broaching in a single continuous cycle.

Key Engineering Takeaways
  • Dual-spindle CNC lathes with 12-station live tooling for 1-hit complete parts
  • Swiss lathe micro-turning for slender pins and shafts down to Ø 0.5mm
  • Automated bar feeders supporting rapid volume production runs
ARTICLE 03 Precision Tooling & Rigid Fixturing Technology

Precision Tooling & Rigid Fixturing Technology

Ensuring Repeatability Across Difficult Thin-Wall and Deep-Pocket Parts

Machining thin-walled chassis and deep acoustic cavities requires specialized holding techniques. JYH designs custom vacuum clamping chucks, soft jaws, and cryogenic shrink-fit tool holders in-house. This prevents part chattering and vibration resonance, enabling wall thicknesses down to 0.5mm in aluminum 6061 and 0.3mm in stainless steel without deformation.

Key Engineering Takeaways
  • In-house modular soft-jaw tooling library reducing setup changeovers to minutes
  • Vacuum chucking tables for large thin sheet machining without clamp interference
  • Hydraulic clamping with monitored pressure sensors to prevent part distortion
ARTICLE 04 Comprehensive Surface Finishing & Anodizing in One Roof

Comprehensive Surface Finishing & Anodizing in One Roof

From Type II & III Hard Anodizing to Electroless Nickel and Passivation

A machined part is rarely finished off the mill. Our in-house finishing department provides bead blasting (glass bead and ceramic media), Type II decorative color anodizing, Type III hardcoat anodizing (MIL-A-8625), chemical film chromate (MIL-DTL-5541), electroless nickel plating, and laser marking, delivering turn-key hardware ready for direct assembly.

Key Engineering Takeaways
  • Type III hardcoat anodizing providing 60 HRC surface wear resistance
  • Color-matched decorative anodizing in black, blue, red, gold, and custom Pantone shades
  • Precision masking of critical bearing bores and threaded holes prior to chemical plating

CNC Machining Division Technical Parameters

Official engineering tolerances, machinery specifications, and production thresholds maintained at our Shenzhen plant.

Parameter / Capability Standard Capability Precision Capability Inspection Protocol
Milling Tolerance ±0.05 mm (0.002 in) ±0.01 mm (0.0004 in) Zeiss 3D CMM & Height Gauge
Turning Tolerance ±0.03 mm (0.0012 in) ±0.005 mm (0.0002 in) Mitutoyo Optical Comparator
Surface Finish (As-Milled) Ra 1.6 μm (63 μin) Ra 0.4 μm (16 μin) Surface Roughness Tester
Max Work Envelope 1,200 x 700 x 600 mm 2,000 x 1,200 x 800 mm Laser Interferometer Verified
Minimum Wall Thickness 0.8 mm (0.032 in) 0.4 mm (0.016 in) Ultrasonic Thickness Gauge

Ready to Start Your Next Production Run?

Upload your 3D CAD files (.STEP, .STP, .IGES) today for an automated Design for Manufacturability (DFM) review and direct factory pricing.

Frequently Asked Questions

Direct answers regarding our manufacturing lead times, tolerances, certified materials, and global delivery.

We machine over 50 materials including Aluminum (6061, 7075, 6082, 5052), Stainless Steel (304, 316L, 17-4PH), Titanium (Gr. 5), Brass, Copper, and Plastics (POM, PEEK, PTFE, Nylon).
Standard turnaround for simple CNC prototypes is 3 business days. Expedited rush production can ship in as fast as 24 to 48 hours.
Yes. We provide complete in-house finishing including bead blasting, color anodizing, hard anodizing, nickel plating, passivating, and laser engraving.
We accept 3D CAD models in STEP (.step, .stp), IGES (.igs), Parasolid (.x_t), and SolidWorks (.sldprt), along with 2D PDF drawings for GD&T callouts.
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