Custom Investment Casting & CNC Machining Solutions for Industrial Applications


Zeren manufactures drawing-based cast and machined metal components for pump & valve, industrial machinery, petrochemical, marine, transportation, medical equipment, hardware, and power engineering applications.


Zeren supports customers across multiple industries with investment casting, CNC machining, heat treatment, and surface finishing services.


We manufacture non-standard metal parts based on drawings, samples, material requirements, and end-use conditions.

Investment casting and CNC machining solutions for diverse industries
Explore the industries we support, the materials we work with, and the manufacturing capabilities behind each solution.

Explore Industries We Support

Custom cast and machined pump and valve components
Pump & Valve

Custom cast and machined components for pump and valve systems used in fluid control applications.

Suitable for pressure-containing parts, sealing faces, corrosion-resistant materials, and precision-machined interfaces.
Typical parts: valve bodies, pump housings, impellers, reducing elbows, connector seats
Custom cast and machined parts for industrial machinery
Industrial Machinery

Custom cast and machined components for industrial equipment, automation systems, production machinery, and mechanical assemblies.

Suitable for load-bearing structures, wear-resistant parts, mounting interfaces, and components requiring stable dimensional accuracy after casting and machining.
Typical parts: bearing housings, gearbox housings, brackets, machine bases, connecting blocks
Cast and machined components for petrochemical and marine applications
Petrochemical & Marine

Custom metal components for petrochemical equipment, marine systems, offshore applications, and corrosive working environments.

Suitable for corrosion-resistant castings, pressure-related components, flow-control parts, and machined sealing or connection surfaces.
Typical parts: valve bodies, pipe fittings, pump components, flanges, marine hardware
Custom cast parts for transportation equipment applications
Transportation

Custom cast and machined parts for vehicles, railway equipment, material handling systems, and other transportation-related assemblies.

Suitable for structural parts, mounting components, wear-resistant parts, and components requiring strength, repeatability, and stable machining quality.
Typical parts: brackets, housings, suspension parts, connector blocks, mounting components
Precision cast and machined components for medical equipment
Medical Equipment

Precision cast and machined components for medical equipment, rehabilitation devices, laboratory instruments, and support assemblies.

Suitable for small to medium-sized components requiring clean surfaces, stable dimensions, reliable machining, and controlled surface finishing.

Typical parts: equipment brackets, instrument components, mounting bases, support frames, stainless steel fittings
Custom cast hardware and architectural components
Hardware & Architectural

Custom cast and finished metal components for architectural hardware, door systems, building fittings, and decorative functional parts.

Suitable for visible components requiring consistent appearance, smooth surface finishing, corrosion resistance, and stable batch production.
Typical parts: door hardware, rail wheels, hinges, handles, architectural fittings
Cast and machined parts for power engineering and instrumentation
Power Engineering & Instrumentation

Custom cast and machined components for power equipment, instrumentation systems, control devices, and industrial electrical assemblies.

Suitable for precision housings, connection parts, mounting structures, and components requiring dimensional stability and reliable finishing.

Typical parts: instrument housings, terminal blocks, brackets, connector parts, control system components
Why Customers Choose Zeren for Custom Industrial Casting Projects
Drawing-Based Custom Manufacturing
Manufacturing based on drawings, samples, BOMs, and application requirements.

Integrated In-House Workflow

Investment casting, CNC machining, heat treatment, and surface finishing managed in one coordinated process.

Flexible Material Options

Support for stainless steel, carbon steel, alloy steel, duplex stainless steel, and other performance-driven materials.

Stable Quality Control

ISO-based process control with inspection support such as chemical composition reports and FAI documentation.

From Prototype to Batch Production

Support for sample development, 3D printing assistance, process optimization, and repeatable production delivery.
Integrated Manufacturing Capabilities Behind Our Industry Solutions


Our industry solutions are supported by a complete manufacturing workflow, including investment casting, tooling support, CNC machining, heat treatment, and surface finishing.


By integrating these processes in-house, we help customers improve consistency, shorten lead times, and simplify supplier coordination.

Investment Casting

For complex shapes, near-net-shape components, and cost-efficient production of custom metal parts.

Tooling & 3D Printing

For sample validation, rapid prototyping, and tooling support before full production.

CNC Machining

For critical dimensions, sealing surfaces, threaded areas, and assembly interfaces.

Heat Treatment

For hardness, wear resistance, strength adjustment, and application-specific performance.

Surface Finishing

For corrosion resistance, appearance improvement, and end-use functional finishing.
Materials Used Across Different Industries


We work with a range of materials to match different applications, strength, corrosion resistance, and machining requirements.

Stainless Steel


Widely used for pump, valve, medical equipment, and general industrial parts requiring corrosion resistance and clean surface quality.
Carbon Steel


Suitable for structural and machinery components requiring strength, machinability, and cost efficiency.
Alloy Steel


Used for demanding mechanical parts that require higher strength, toughness, and wear resistance.
Duplex Stainless Steel


Suitable for marine, petrochemical, and corrosive environments requiring stronger corrosion resistance.
Nickel-Based Alloys


Used for applications involving high temperature, corrosion resistance, or more demanding service environments.
Heat-Resistant / Wear-Resistant Steel


Suitable for components exposed to heat, abrasion, and long-term mechanical wear.

Explore Materials

Typical Component Examples Across Industries

Below are representative component types we commonly support for different industrial applications. Final design, material, tolerance, heat treatment, and surface finishing requirements are evaluated based on customer drawings and working conditions.

Custom cast and machined pump and valve components for fluid control applications
Pump & Valve Components
Application: Fluid control systems, pump assemblies, and industrial valve equipment.

Requirement: Sealing surfaces, pressure-related structures, and stable machining accuracy.

Focus: Casting integrity, sealing-face machining, connection dimensions, and surface finishing quality.
Custom cast and machined housings and brackets for industrial machinery assemblies
Machinery Housings & Brackets
Application: Industrial machinery, automation equipment, production systems, and mechanical assemblies.

Requirement: Load-bearing strength, stable mounting accuracy, and repeatable batch production.

Focus: Wall thickness control, flatness, hole position accuracy, and post-casting machining stability.
Cast pipe fittings and connector parts with machined connection surfaces
Pipe Fittings & Connector Parts
Application: Petrochemical equipment, marine systems, offshore equipment, and corrosive working environments.

Requirement: Corrosion resistance, connection reliability, and machined sealing or joining surfaces.

Focus: Material selection, casting soundness, thread or flange accuracy, and pressure-related structure.
Cast and machined housings and mounting parts for transportation equipment
Transportation Housings & Mounting Parts
Application: Vehicle systems, railway equipment, material handling systems, and transportation assemblies.

Requirement: Stable structure, accurate mounting interfaces, and reliable performance under vibration or load.

Focus: Deformation control, machined datum surfaces, threaded holes, and assembly dimensions.
Precision cast and machined components for medical, laboratory, and instrumentation equipment
Precision Equipment Components
Application: Medical equipment, laboratory instruments, power equipment, and instrumentation systems.

Requirement: Clean appearance, stable dimensions, precise mounting holes, and reliable assembly fit.

Focus: Burr control, surface consistency, hole position accuracy, dimensional inspection, and finishing quality.
Cast metal hardware and architectural components with finished functional surfaces
Hardware & Architectural Components
Application: Door systems, sliding hardware, architectural fittings, and visible functional metal parts.

Requirement: Smooth movement, wear resistance, consistent appearance, and stable installation dimensions.

Focus: Roundness, groove accuracy, surface finishing, corrosion resistance, and batch consistency.
Related Resources for Industry Buyers
Case Studies
See how custom casting and machining solutions are applied in real customer projects.
Casting Process Guide
Understand how investment casting works, what it is suitable for, and how the process affects part quality.
Material Selection Guide
Compare material options based on corrosion resistance, strength, machining requirements, and application environment.
Frequently Asked Questions About Investment Casting for Industrial Applications


We support custom investment casting and machining solutions for a wide range of industries, including pump & valve, industrial machinery, transportation, petrochemical & marine, medical equipment, hardware & architectural, and power engineering & instrumentation. Below are some frequently asked questions about our materials, processes, tolerances, and production support.

1. What industries do you support for custom investment casting?

We provide custom investment casting and CNC machining solutions for a wide range of industries, including pump and valve systems, industrial machinery, transportation equipment, petrochemical and marine applications, medical equipment, hardware and architectural components, and power engineering and instrumentation parts. Our team can recommend suitable manufacturing routes based on the structure, material, tolerance, and functional requirements of each application.
2. What materials are available for different industrial casting applications?

We work with a range of materials for different service environments, including stainless steel, carbon steel, alloy steel, and duplex stainless steel. Material selection depends on the application requirements such as corrosion resistance, strength, wear resistance, pressure performance, and dimensional stability. For example, stainless steel is commonly used for pump, valve, medical, and marine components, while carbon steel and alloy steel are often selected for machinery, structural, and engineering parts.
3. Is investment casting suitable for complex industrial components?

Yes. Investment casting is especially suitable for complex metal parts with intricate geometries, near-net-shape structures, and detailed surface requirements. It is widely used for components such as valve bodies, pump housings, impellers, brackets, connectors, and equipment fittings. Compared with conventional machining from solid stock, investment casting can help reduce material waste, improve shape consistency, and lower overall production cost for suitable parts.
4. Do you provide both casting and CNC machining in one service?

Yes. We provide one-stop support from tooling and investment casting to CNC machining, surface treatment, and inspection. For many industrial applications, castings still require secondary machining on sealing faces, threaded holes, datum surfaces, or critical assembly areas. Combining casting and machining in one production flow helps improve dimensional consistency, communication efficiency, and delivery control.
5. Can you produce prototype samples or low-volume custom parts?

Yes. We support prototype development, sample production, and low- to medium-volume custom manufacturing based on project needs. For new parts, we can review drawings or samples first and then recommend a suitable method for tooling, casting, and machining. This helps customers verify structure, dimensions, and application fit before moving to larger production quantities.
6. How do you control quality for industrial casting parts?

Quality control is carried out throughout the production process, from raw material verification and tooling review to dimensional inspection and final quality checks. Inspection methods may include visual inspection, dimensional measurement, and other checks based on part requirements. For custom industrial components, controlling key dimensions, machining areas, and surface quality is essential to ensure assembly performance and product consistency.

Need a Custom Casting Solution for Your Industry?


Send us your drawings, samples, target materials, or application requirements.


Our engineering team will review manufacturability, recommend suitable processes, and provide quotation support for your project.


Support available from prototype development to batch production.

OEM / ODM Support
Drawing-Based Manufacturing
Fast Response from Engineering Team