Lead-Free Brass Valve Body Hydraulic Manifold Machining 5-Axis 0.01mm Precision
Lead-Free Brass Valve Body
,Multi-Port Hydraulic Manifold
,Custom Brass CNC Machining
This lead-free brass multi-port hydraulic valve body is a precision-machined fluid control component built for hydraulic power units, pneumatic manifolds and industrial fluid distribution systems where leak-tight sealing, repeatable port alignment and stable pressure containment are non-negotiable. Each body is machined on 4-axis and 5-axis CNC machining centers with live tooling, completing multi-port passages, internal threads, hexagonal wrench flats and stepped sealing flanges in a single setup.
Every unit is produced to the customer's own 2D/3D drawing, with port count, port layout, thread standard and sealing geometry fully configurable. Critical dimensions are held to ±0.01mm, and each body is 100% pressure-tested before packing so that it performs from the first installation.
- Certified lead-free brass bar stock selection with material certificate and RoHS declaration.
- First-op turning on CNC lathe for the main body OD, hex flats and primary ports.
- 4-axis / 5-axis machining center with live tooling for intersecting internal passages, angled ports and internal threads in a single clamping.
- In-process CMM and thread-gauge checks after critical operations, not only at final inspection.
- Deburr, ultrasonic clean and sealing-face lapping to Ra 0.4-0.8μm.
- 100% air / hydrostatic leak test, then anti-oxidation wrap, protective packing and photo confirmation before shipment.
Dimensional tolerance: ±0.01mm | Internal threads: NPT / NPTF / BSPP / BSPT / Metric | Sealing surface: Ra 0.4-0.8μm lapped | 100% leak tested before shipment
Internal and external threads are verified with thread gauges to guarantee proper pipe engagement and leak-free connections. Port bore diameters, spacing and depth are controlled to keep flow balanced between ports. Sealing flange flatness and finish are maintained for reliable O-ring and gasket performance, and every production batch is supported by first-article inspection and CMM reports.
Lead-free brass (C36000 equivalent / eco-brass C27450) delivers excellent machinability for fine threads and complex internal passages, together with inherent corrosion resistance for water, hydraulic fluid and pneumatic media. The natural golden finish shows clean CNC tool marks with a bright metallic lustre; nickel, chrome or tin plating and passivation are available on request for harsher environments.
Custom valve bodies are our core business. Send STEP, IGES, STP or DWG files with your port layout and pressure rating, and our engineering team returns a DFM review within 24-48 hours. We control the full route in-house, from single prototypes to series production.
- Custom port count and layout: 2-port, 3-way, 4-way, cross or T configuration
- Custom thread standards: NPT, NPTF, BSPP, BSPT, metric and custom profiles
- Custom materials: lead-free brass, C46400 naval brass, aluminum and stainless steel
- Custom finish: nickel / chrome / tin plating, passivation, mirror-polished sealing faces
- Custom pressure rating and body size, low MOQ from 1 piece
Dongguan Changxinda Precision Technology Co., Ltd. (brand: China-CXD) has specialised in custom CNC precision parts and metal manufacturing since 2008. Our 90+ staff operate 4-axis and 5-axis CNC machining centers, turn-mill combined CNC lathes, CNC lathes and milling machines under an ISO 9001:2015 quality management system.
- Founded in 2008, 15+ years of precision machining know-how
- Industries served: fluid control, robotics, medical, automotive, aerospace, automation, laser, LED and lithium battery
- 200+ customers served, 50-60% of output exported worldwide
- ISO 9001:2015 certified with RoHS-compliant material traceability
- Slogan: CNC Machining Experts, Serving Global Industries
| Prototype / sample | 10-15 working days |
|---|---|
| Small batch (10-100 pcs) | 15-20 working days |
| Mass production (100-1000 pcs) | 20-30 working days |
| Monthly supply ability | 20,000 pcs / month |
| Shipping | DHL / FedEx / UPS express, air freight, sea freight |
Reserved production slots and multi-machine capacity keep lead times predictable, so repeat orders stay on the same delivery rhythm. Anti-oxidation wrap and shock-proof export cartons protect every valve body, and custom branding or labelling is available on request.
- Hydraulic power units and directional control valves
- Pneumatic manifolds and compressed-air distribution blocks
- HVAC and refrigeration fluid control components
- Water treatment, filtration and plumbing systems
- Chemical processing and industrial fluid handling
- Marine and offshore corrosion-resistant fluid systems
- ±0.01mm dimensional tolerance on critical features
- 4-axis / 5-axis machining with live tooling, single setup
- Lead-free brass for potable-water and RoHS compliance
- Multi-port T or cross configuration, internal threads
- NPT / NPTF / BSPP / BSPT / metric thread options
- Lapped sealing faces Ra 0.4-0.8μm for leak-tight fit
- 100% air / hydrostatic leak test before shipment
- CMM and thread-gauge inspection with reports
- Full OEM / ODM non-standard customization
- Low MOQ from 1 piece, stable and predictable delivery
A: Yes. Every valve body is built to your STEP, IGES, STP or DWG file. Send the drawing with port layout and pressure rating and our engineers return a DFM review within 24-48 hours.
A: NPT, NPTF, BSPP, BSPT, metric and custom thread profiles, all verified with thread gauges for leak-free engagement.
A: Sealing faces are lapped to Ra 0.4-0.8μm and 100% of bodies receive an air or hydrostatic leak test before shipment, supported by CMM and first-article inspection.
A: We accept orders from 1 piece for prototypes and scale to tens of thousands per month for series production.
A: Multi-machine capacity of 20,000 pcs per month, reserved production slots and in-process CMM checks keep lead times predictable: samples 10-15 days, small batch 15-20 days, mass production 20-30 days.
A: Yes. We supply lead-free brass with material certificates and RoHS declarations, suitable for potable-water and food-grade fluid systems.
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