This Pump Body Casting is a core pressure-containing and fluid-handling component designed for natural gas connection systems, gas pressure regulation units, and fuel gas distribution fittings. It is manufactured by our in-house High Pressure Die Casting + CNC precision machining process to achieve high strength, precise internal chamber geometry, and reliable gas-tight sealing. The use of ADC12 aluminum alloy provides an excellent balance of high strength, superior dimensional stability, and good corrosion resistance in gas service environments. The high-pressure casting process ensures excellent surface finish, tight dimensional consistency, and the ability to form thin-walled, complex internal passages.
Matech's one-stop approach, covering mold design, high pressure die casting, CNC machining (sealing faces, threaded ports, mounting flanges, internal chamber bores), air-decay leak testing, surface treatment (powder coating), and engineered packing, ensures this pump body offers excellent gas-tight sealing, tight dimensional tolerances on threaded and sealing interfaces, and a ready-to-assemble finish — performing reliably in demanding natural gas connection applications.
Custom Die-Cast Aluminum Pump Housing | High Pressure Die Casting | ADC12 Gas-Tight Body for Natural Gas Fittings — Matech
| Specification | Details for This Case | Matech’s Capability / Notes |
| Alloy Grade | ADC12 (JIS H 5302) | We work with ADC12, A380, EN AC-46000 and other standard or customized aluminum alloys, with material certification provided |
| Die Casting Machine | 280 Ton Cold Chamber Die Casting Machine | Machine tonnage from 160T to 1250T available for various sizes. |
| Unit Weight | 0.45 kg | We can handle aluminum die casting parts from 0.001 kg ~ 30kg |
| Overall Dimensions | 130 × 110 × 80 mm | Maximum machining size approximately 500 × 500 × 300 mm, subject to drawing confirmation |
| Casting Tolerance | ISO 2768-M | Achieved via our in-house precise tooling and stable casting parameters. |
| Machining Tolerance | ±0.2 mm | Achieved by 3/4/5-axis CNC centers. Tighter tolerances can be discussed,with best achievable tolerance up to 0.005 mm |
| Surface Roughness | Ra 3.2 µm (as-cast) / Ra 0.8~3.2 µm (machined) | Typical machined surface roughness can reach Ra 0.8–3.2 μm (turning/milling); Ra 0.4–0.8 μm achievable after grinding |
| Min. Wall Thickness | 1.5 mm | We specialize in thin-wall castings; min. 0.5 mm feasible depending on geometry. |
| Heat Treatment | Not applicable for ADC12 Die Casting | T4,T6, T5,T7 and solution heat treatment available for other low-pressure or gravity-cast aluminum alloys, with digitally controlled full-process furnaces |
| Surface Treatment | Powder coating | Options: anodizing, chromate conversion, electrophoretic coating, spray painting, powder coating, passivation, sandblasting, Teflon coating, etc. Corrosion resistance per your spec. |
| Application | Natural Gas Fittings | We serve robotics, automotive, medical, machinery, pump & valve, new energy, etc. |
| MOQ | 500 pcs | Flexible MOQ, starting from prototype/small batch quantities. |
| Sample Lead Time | 25-40 working days (with new tooling) | Defined upon drawing review. Expedite options available. |
| Production Lead Time | 30-45 working days | Based on order quantity and complexity, confirmed in contract. |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | We process all standard 2D/3D formats. |
| Customizable | Manufactured according to drawings or samples | Every aspect—material, geometry, tolerance, finish—is built to your design. |
| Certification | ROHS,ISO 9001:2015 | Material certificates, dimensional inspection reports, and PPAP Level 3 documentation available upon request for automotive and critical components |
| Packing | Custom PE foam + plywood crate | Engineered packing designed for your part’s specific fragile/critical areas. |
Customization Options
Every casting project starts with your unique design and requirements. Whether it's iron, steel, or aluminum, we tailor every aspect of the manufacturing process to your exact specifications. Below are the key dimensions you can customize with Matech — your drawing is our only standard.
Our Advantages
Technical Advantages
MMold design and fabrication, high pressure die casting workshop, CNC machining, surface treatment, and inspection lab — all centralized under one roof. No outsourcing. From molten aluminum to finished and coated part, we maintain full control over lead time, quality consistency, and batch traceability.
Design for Manufacturability (DFM) Support
Before tooling production begins, we provide a detailed DFM report covering mold filling analysis, solidification behavior, draft angle optimization, and machining allowance recommendations. For gas-handling pump bodies like this ADC12 component, we focus on wall thickness uniformity in pressure-retaining sections, gate placement to minimize porosity in sealing areas, and internal passage design to ensure leak-tight integrity after machining.
Expertise in High Pressure Die Casting
We specialize in thin-walled, pressure-tight aluminum die castings — such as pump bodies, valve bodies, gas fittings, and hydraulic components. Our HPDC process delivers excellent surface finish, tight dimensional consistency, and the ability to form complex internal passages in a single operation. In-house air-decay leak testing on custom fixtures verifies gas-tight performance before shipment. We work with ADC12, A380, A360, and other standard or custom aluminum alloys to match your pressure, sealing, and corrosion requirements.
Material Advantages
Strict Raw Material & Melt Control
We charge only certified primary aluminum ingots into our electric melting furnaces. Chemical composition is spectrometer-verified and adjusted in real time before casting. Degassing and fluxing practices ensure clean molten metal with low inclusion content — critical for maintaining consistent ADC12 pressure tightness and surface quality across high-volume production.
Every production batch is identified by a unique heat number. Chemical composition reports, mechanical test records (tensile strength, hardness, elongation), leak test data, and dimensional inspection records are compiled into a traceable dossier — from ingot lot to finished pump body.
We work with a comprehensive range of die casting aluminum alloys — ADC12, A380, A360 — and can tailor alloy selection to your specific requirements. Whether your application demands pressure tightness for gas service, corrosion resistance in aggressive media, or dimensional stability under thermal cycling, we match the alloy and process parameters to your needs.
Service Advantages
Dedicated Cross-Functional Support
A dedicated project manager oversees the entire process — from design review to final delivery — ensuring efficient communication at every stage and a single point of contact for all technical and commercial matters.
Fast Response & Transparent Communication
Quotations are typically provided within 24–48 hours. Production progress is updated regularly through photos and production data, with continuous customer feedback collection throughout the project. For gas-handling components, first-article inspection reports including leak test data are provided before batch production begins.
Full batch traceability and 24-hour response to quality-related issues ensure reliable post-delivery support. Flexible MOQ with pilot order options available for new die-casting projects.
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