Custom hydraulic manifolds, made in China.
From our Dongguan factory in China, we manufacture custom hydraulic manifolds and valve-integrated cylinder ends to approved drawings. Valve cavities, internal passages and inspection follow the agreed requirements.
What must your manifold get right?
A small error inside a manifold can be difficult to find after assembly. We connect the critical drawing features to the machining sequence, internal cleaning and checks needed before delivery.
The valve must fit the intended cavity
A familiar thread does not define the complete valve interface. The specified cavity reference guides the bore steps, depths, threads and sealing features.
Valve cavity and interface reviewThe internal passages must meet correctly
Dense, deep and angled passages need control of location, direction and depth. The process also has to address burrs at the intersections and access for cleaning.
Complex passage machiningThe finished part must match the drawing
Material identity, applicable dimensions and bore geometry, thread gauges, sealing-surface roughness and burr removal form the basis of machined-block acceptance.
Drawing-based quality controlManufactured for your hydraulic assembly
Screw-in cartridge valve manifolds
Custom blocks built around the approved valve cavities, ports and internal connections for your circuit.
Cartridge valve manifoldsPower unit blocks & valve plates
Machined blocks and mounting plates that connect valve interfaces, sealing faces and the installation layout.
Power unit manifoldsValve-integrated cylinder ends
Cylinder-end and cylinder-head components combining structural interfaces with valve cavities and internal passages.
Cylinder-end valve blocksA cylinder end. A manifold. One demanding component.

Control the hydraulic features alongside the structural ones
Q355B and GB 45 cylinder-end blocks intended for welding bring together material requirements, structural geometry and precisely defined valve sealing surfaces. Our process planning gives those features attention from tooling through final inspection.
For the agreed welding route, these components are supplied with our designated no-clean rust-preventive oil and a sealed dust-protective PE bag. The detailed product page explains the delivery condition and material comparison references.
Explore the cylinder-end specialtySee the resources behind the result

Cavity tooling and process experience
Dedicated tools and project-specific tooling development support the required cavity geometry. Tool selection, machining sequence and operator experience work together on difficult features.
Valve-cavity tooling
Checks connected to the requirement
Use the appropriate method for dimensions, threads, geometry and roughness. Agree the inspection scope and required reports for the specific drawing.
Inspection and metrologyNormal delivery checks focus on material and drawing conformity. Pressure and functional testing are not routine checks for machined blocks; any separately requested verification must have an agreed scope.
Inside the workshop Deburring and cleaningMaterial and delivery condition belong together
Material selection depends on the complete design and operating conditions. We review machining and delivery requirements against the grade and condition approved by your design engineer.
Aluminum
6061-T6, 6082-T6 and 7075-T6, plus other customer-specified grades within our project experience.
Aluminum optionsDuctile iron
QT450-12 and QT500-7 are commonly used in Zhongwei projects. Compare overseas references against the actual specification.
Ductile iron optionsCarbon & alloy steel
Q355B, GB 45, C35E+QT and AISI 4140 are among our project materials. Review stock condition, welding intent and the required protection route.
Material selection guideStainless steel
304, 316 and 17-4PH projects require the specified grade and condition to be considered with geometry and the service environment.
Stainless steel optionsChinese, European and US comparison references are available in the detailed guides. A comparison is not approval to substitute a grade.
A clear path from project input to repeat orders
01 · Define the component
Send the current drawing and model, material, quantity and valve references. A schematic can start the discussion while the part definition is being developed.
Engineering support02 · Agree the sample checks
Resolve open requirements, confirm the governing revision and agree which material and inspection records are needed.
Documentation and traceability03 · Carry approval into production
Record sample feedback and accepted changes, then confirm the production definition, quantities and delivery schedule.
Sample to batch productionDongguan Zhongwei Metal Products Co., Ltd. was established in 2018 to serve international customers. Based in Dongguan, we focus on custom hydraulic manifolds and the manufacturing work behind them.
Meet Zhongwei and Tomas Explore the technical guidesSend a drawing. Start with the details.
Complete manifold drawings are preferred. A schematic can start the discussion.
