Cencho provides custom investment casting services for industrial metal components manufactured according to customer drawings, samples and application requirements.
From mold development and lost wax casting to CNC machining, surface finishing and final inspection, we support OEM customers who need complex metal parts with controlled dimensions, consistent material quality and reduced secondary processing.Our custom investment castings are widely suited to valves, pumps, pipe fittings, machinery components, fluid-control equipment and other industrial applications where complex geometry, corrosion resistance and dimensional consistency are important.
Cencho combines investment casting with secondary machining and finishing to supply parts closer to their final installation condition.
| Capability | Available Options |
| Manufacturing Process | Lost Wax / Investment Casting |
| Customization | According to drawings or samples |
| Casting Tolerance | CT4–CT6 depending on part design and requirements |
| Typical Casting Weight | 0.005–60 kg depending on material and geometry |
| Materials | Stainless steel, carbon steel, alloy steel and project-specific alloys |
| Machining | CNC turning, milling, drilling and other secondary machining |
| Surface Finishing | Sandblasting, glass bead blasting, polishing, electropolishing, brushing and other treatments |
| Service | OEM / ODM |
| Production Support | Sample development, small orders and batch production |
| Quality Control | Material verification, dimensional inspection, surface inspection and project-specific testing |
Actual manufacturability, tolerance and finishing requirements are reviewed according to the part geometry, material, dimensions and application.
A successful custom casting project starts with more than simply receiving a drawing. Material selection, casting geometry, machining allowance, surface requirements and inspection criteria all affect the final cost and production consistency.
Cencho supports customers through the complete manufacturing process.
Send us your drawing, sample, material requirement and expected order quantity. Our technical team reviews the component structure and manufacturing requirements before tooling begins.
● Part dimensions and geometry
● Material grade
● Critical tolerances
● Machined surfaces
● Surface treatment
● Application conditions
● Inspection requirements
● Estimated order quantity
After the manufacturing requirements are confirmed, tooling is developed for wax pattern production.
Cencho operates automatic wax injection equipment. Each automatic waxing machine can produce up to approximately 4,000 wax patterns per day, helping improve production consistency and efficiency compared with manual production.
Wax patterns are assembled and repeatedly coated with ceramic slurry and refractory material to form the casting shell.
Automatic shell-making equipment can process approximately 800 trees per day. A controlled drying process is used before dewaxing and casting.
After dewaxing and shell preparation, the selected metal is melted and poured into the ceramic mold.
Material composition is checked using spectrometer testing equipment to help ensure that the casting material meets the specified requirements.
After solidification, the ceramic shell is removed and individual castings are separated from the casting tree.
Depending on the drawing and final application, secondary processes can include:
● Grinding
● Sandblasting
● Glass bead blasting
● Polishing
● Electropolishing
● Brushed finishing
● Heat treatment
● Other project-specific finishing
Where tighter dimensions, threads, holes, sealing faces or assembly surfaces are required, secondary CNC machining can be added after casting.
Cencho operates 40 CNC lathes and 2 milling machines, allowing casting and machining requirements to be coordinated within one supply process.
This is particularly useful for OEM buyers who prefer to receive finished or semi-finished components rather than purchasing raw castings and arranging machining separately.
Finished parts are inspected against agreed specifications before shipment.
Depending on the product and application, inspection can cover:
● Material composition
● Casting dimensions
● Machined dimensions
● Surface condition
● Visible casting defects
● Surface treatment
● Functional or pressure testing where applicable
Material selection should be based on corrosion resistance, mechanical strength, operating temperature, wear conditions and final application.
Cencho can support different casting materials according to project requirements.
Custom stainless steel investment casting is one of the main options for components requiring corrosion resistance, clean surfaces and reliable mechanical properties.
Common applications include:
● Valve bodies and valve components
● Pump components
● Pipe fittings
● Food processing equipment
● Chemical equipment components
● Marine and fluid-control parts
● Machinery components
Carbon steel and alloy steel are suitable for components where strength, load capacity, wear resistance or specific mechanical properties are more important than the corrosion resistance offered by stainless steel.
Material grades should be confirmed according to the customer's drawing, standard and operating environment.
Custom investment casting is particularly suitable when a component would otherwise require extensive machining, welding or assembly.
● Complex Geometry
The lost wax process can reproduce complex external shapes, detailed features and geometries that may be difficult to manufacture economically using conventional machining alone.
● Dimensional Control
Depending on the component geometry and production requirements, Cencho can support investment castings with casting tolerances in the CT4–CT6 range.
● Reduced Machining
Near-net-shape casting can reduce the amount of metal that needs to be removed by CNC machining.
Instead of machining an entire component from solid stock, critical dimensions can be cast close to the required shape and only functional areas machined afterward.
● Integrated Casting and CNC Machining
For parts requiring threads, precision bores, sealing surfaces or assembly dimensions, investment casting can be combined with CNC machining.
This provides OEM buyers with a more complete manufacturing route from raw material to assembly-ready component.
● Flexible Material Selection
Custom castings can be produced in stainless steel, carbon steel, alloy steel and other suitable alloys according to the mechanical and environmental requirements of the application.
Cencho's manufacturing experience is particularly relevant to industrial fluid-control and mechanical components.
Typical custom investment casting parts can include:
● Valve bodies and covers
● Valve components
● Pump housings and pump components
● Impellers
● Stainless steel pipe fitting components
● Couplings and connectors
● Machinery components
● Equipment brackets and supports
● Precision hardware components
● Food processing equipment parts
● Chemical equipment components
● Other complex OEM metal parts
If your component is not listed above, send us the drawing or sample for manufacturing review.
For OEM casting buyers, dimensional accuracy alone is not enough. Material consistency, casting defects, machining accuracy and surface condition can all affect component performance.
Cencho applies quality control throughout the production process.
● Material Verification
A spectrometer is used to inspect material composition before casting. Finished products can also be checked to verify that the required material specification has been maintained.
● Casting Inspection
Castings are checked for dimensions, surface condition and visible casting defects before further processing.
● Machining Inspection
Critical machined dimensions are inspected according to customer drawings and agreed tolerances.
● Final Inspection
Finished components are inspected again before packing and shipment. For valves and other pressure-related products, water-pressure or air-pressure testing can be performed where applicable.
Cencho has been manufacturing valves, pipe fittings and custom cast components since 1997, combining casting, machining and quality inspection capabilities for international industrial customers.
● Investment casting manufacturing experience since 1997
● Automatic wax injection production
● Automatic ceramic shell production
● 40 CNC lathes and 2 milling machines
● In-house material composition testing with spectrometer equipment
● Casting, machining and finishing from one supplier
● OEM production according to drawings or samples
● Sample and small-order support
● Inspection throughout the manufacturing process
● Experience supplying customers in multiple international markets
Rather than supplying only raw castings, Cencho can coordinate custom investment casting, CNC machining, surface treatment and inspection according to your final component requirements.
Aerospace: Such as jet engine blades, vanes, fuselage components, etc.
Automotive Parts: Such as turbochargers, engine blocks, fuel system components, new energy vehicle parts, etc.
Medical Equipment: Such as artificial joints, surgical instruments, and other precision medical devices.
Energy and Chemical Industries: Such as pump housings, valves, impellers, and other corrosion-resistant, high-temperature-resistant components.
Other Industries: Such as various hardware parts, electronic communications components, precision instrument parts, etc.
1. What information do you need to manufacture a custom casting?
A drawing or physical sample is the best starting point. Material, dimensions, tolerances, machining requirements, surface treatment, application and expected order quantity should also be provided whenever possible.
2. Can Cencho manufacture custom stainless steel investment castings?
Yes. Stainless steel investment casting is an important part of Cencho's custom casting capability and is suitable for valves, fittings, pumps, machinery and other corrosion-resistant industrial components.
3. Can investment castings be CNC machined after casting?
Yes. Cencho combines investment casting with CNC machining for parts requiring precision holes, threads, sealing surfaces, bores and other critical dimensions.
4. What casting tolerance can you achieve?
Cencho lists casting tolerance capability in the CT4–CT6 range for suitable investment casting parts. Final achievable tolerance depends on material, component size, geometry and the location of the critical dimension.
5. Can you manufacture according to samples instead of drawings?
Yes. OEM production can be developed according to customer samples as well as technical drawings. Manufacturing details should be confirmed before tooling and production.
6. Do you accept small custom orders?
Small orders and sample production can be supported depending on the component, tooling requirement and manufacturing process. Contact Cencho with your required quantity for evaluation.
7. Can you supply finished parts instead of raw castings?
Yes. Depending on project requirements, custom investment castings can be supplied with CNC machining, polishing, surface treatment and inspection so that customers receive semi-finished or finished components.
Mold Making Wax Injection Wax inspection Pattern Assembly
Coating Stuccoing Drying and Hardening Dewaxing
Mold Firing Pouring Knock-out Cut-off
Grinding and Polishing Post-processing
Our robust production capacity allows us to flexibly to customers' customized order demands.
We are capable of manufacturing customized products using materials such as stainless steel, alloy steel, high-temperature alloys, and aluminum alloys.
We provide highly competitive prices and relatively short delivery lead times.
In collaboration with our clients, we deliver professional services across the full lifecycle of product development and manufacturing.
We are equipped with professional testing facilities and are capable of providing comprehensive testing services for our products.
