IPE Precision Machining Custom OEM Metal Components
High-volume contract manufacturing of ultra-precision metal parts across IPE Group plants (Guangzhou Xinhao, Dongguan Keda, Changshu, Thailand): automotive GDI fuel components, hydraulic valve spools, HDD bearing housings, 3C electronics and medical parts.
Ultra-Precision Automotive Components (GDI, Fuel Pumps, Solenoid Valves)
IATF 16949 certified high-volume manufacturing of fuel injection, transmission and sensor components for global automotive OEMs.
- Electromagnetic (solenoid) valve bodies and armatures, GDI fuel injector nozzles and precision needles, high-pressure oil pump plungers.
- Pressure transducer housings, throttle valve shafts and precision transmission sleeves.
- Roundness controlled within 2 µm and surface roughness held to Ra 0.1 µm (Rz 0.5–3 µm).
Precision Hydraulic Valve Spools, Joystick Parts & Cartridge Sleeves
Machining, vacuum hardening and selective lapping of spool-and-sleeve assemblies for leading hydraulic brands (Danfoss, Bosch Rexroth).
- Precision hardened spools, plungers and joystick pilot valve components for excavators and loaders.
- Pilot-operated (PO) relief valve parts, anti-cavitation valve poppets and screw-in cartridge valve bodies.
- Diamond honing and cylindrical grinding with 3–8 µm matched spool clearance and 100 % pressure bench testing.
Hard Disk Drive (HDD), 3C Electronics & Fiber Optic Components
Ultra-clean Swiss-type turning and milling of stainless steel, brass and aluminum micro-components.
- HDD spindle motor fluid dynamic bearing housings, precision micro-shafts, spacer rings and locating pins.
- TWS Bluetooth earphone metal acoustic housings and high-precision fiber optic transceiver sleeves.
- Multi-stage ultrasonic cleanroom washing with ionic contamination control and 100 % AI vision sorting.
Medical Device, Robotics & Industrial Actuator Components
Custom machining and grinding of titanium alloys, specialty steels and Kovar to customer 2D/3D specifications.
- Harmonic drive flexspline cups, eccentric wave generator shafts and servo motor flanges.
- Medical fluid control valves, diagnostic analyzer manifolds and endoscopic instrument parts.
- Full mill heat traceability (EN 10204 3.1) and 3D CMM inspection reports.
One-Stop Vertical Integration: Forging, CNC, Vacuum Furnaces & Grinding
Complete in-house process chain eliminating external subcontracting risks on critical tolerances.
- In-house tooling & die shop, high-pressure molding, forging, stamping and over 1,000 multi-axis CNC turning/milling centers.
- Dedicated heat treatment plant with multi-purpose furnaces, mesh-belt furnaces and vacuum furnaces.
- Finish ID/OD cylindrical grinding, centerless grinding and multi-spindle honing.
Build-to-Print Contract Manufacturing (2D/3D) & PPAP Qualification
Turnkey onboarding of custom parts from 2D PDF drawings and 3D STEP models with full PPAP documentation.
- Material cross-referencing across DIN/EN, AISI/SAE, JIS and GB standards with hardness (HRC/HV) and hardened-layer verification.
- Prototype and PPAP sample batches accompanied by roundness, profilometer and 3D CMM measurement reports.
- Direct B2B export contracts, VCI corrosion-inhibited vacuum tray packaging and door-to-door logistics.
About IPE Precision Machining (Guangzhou Xinhao & Dongguan Keda / IPE Group)
Ultra-precision machining is the founding and largest business division of IPE Group Limited (国际精密集团有限公司, founded in 1990, HKEX: 00929, a member enterprise of China Baoan Group). Operating major production campuses at Guangzhou Xinhao Precision Technology Co., Ltd.
(Zengcheng, Guangzhou), Dongguan Keda Metal Products Co., Ltd. (Dongguan), Changshu (Jiangsu), Wuhu and Thailand, IPE is an IATF 16949 certified Tier-1/Tier-2 supplier to Fortune 500 leaders including BorgWarner, General Motors (GM), Danfoss and Bosch Rexroth.
IPE Precision Machining provides a vertically integrated One-Stop OEM Service: in-house mold & die making, high-pressure molding, cold/hot forging, stamping, CNC turning/milling across 1,000+ multi-axis machines, in-house heat treatment (multi-purpose chamber furnaces, mesh-belt furnaces and vacuum
quenching furnaces), and finish honing, cylindrical and centerless grinding. Serial production routinely holds roundness within 2 µm (0.002 mm) and surface roughness down to Ra 0.1 µm (Rz 0.5–3 µm).
IPE Precision Machining Capabilities & Tolerance Summary
| Industry Sector | Typical OEM Parts | In-House Process Route | Tolerances & Quality Standards |
|---|---|---|---|
| Automotive Components (IATF 16949) | GDI nozzles & needles, high-pressure pump plungers, solenoid valves, transducer fittings | Cold forging → CNC turning → vacuum heat treatment → centerless & OD grinding | Roundness ≤ 2 µm; roughness Ra 0.1 µm (Rz 0.5–3 µm) |
| Hydraulic Valve Components | Directional spools, joystick plungers, PO relief & anti-cavitation valve parts, cartridge sleeves | Multi-axis CNC → vacuum carburizing/quenching → diamond honing & lapping | 3–8 µm matched spool clearance; concentricity ≤ 2–3 µm |
| HDD, 3C & Fiber Optics | HDD bearing housings, micro-shafts, spacers, locating pins, TWS & optical sleeves | Swiss-type sliding-headstock CNC → ultrasonic cleanroom washing | Ionic cleanliness control; 100 % IPE Keyi AI vision inspection |
| Robotics & Medical Devices | Harmonic flexspline cups, eccentric shafts, titanium surgical & diagnostic parts | 5-axis CNC → gear cutting → vacuum annealing → finish grinding | EN 10204 3.1 material certificates; 3D CMM reports |
| Heat Treatment & Finishing | Hardened pins, bushings, guide sleeves and precision valve seats | Multi-purpose, mesh-belt & vacuum furnaces + ID/OD/centerless grinding & honing | In-house metallurgical lab (HRC / HV hardness & hardened layer) |
Frequently Asked Questions — IPE Precision Machining
What roundness and surface finish tolerances can IPE Group hold in mass production?
Across automotive GDI components, hydraulic valve spools and HDD parts, IPE Group maintains roundness tolerances within 2 µm (0.002 mm) and ground/lapped surface roughness down to Ra 0.1 µm (Rz 0.5–3 µm).
Does IPE perform heat treatment in-house?
Yes. IPE operates its own multi-purpose chamber furnaces, mesh-belt furnaces and vacuum quenching furnaces in-house, ensuring tight distortion control prior to finish grinding and honing.
All IPE Precision Machining components are custom-manufactured to customer drawings (OEM/ODM)—there is no off-the-shelf catalog or fixed price list.
Proprietary designs protected by third-party NDAs (such as BorgWarner, GM, Danfoss or Bosch Rexroth) are never shared or reproduced without authorization.
Material certificates (3.1), PPAP/CMM reports, HS codes, MOQs, tooling costs and lead times are quoted individually upon receipt of 2D/3D drawings.
Related IPE Group Divisions & Catalog Links
- Equipment and components for Bosch Rexroth
- Equipment and components for Kawasaki Precision Machinery
- Equipment and components for HIWIN
- Equipment and components for THK
- Equipment and components for KUKA
