Steel Impeller Casting Lost Wax Casting For Transmission Equipment
This Steel Impeller is a core rotational and power-transmitting component designed for transmission equipment, hydraulic coupling systems, centrifugal drive assemblies, and industrial power transmission rotating elements. It is manufactured by our in-house Investment Casting (Lost Wax) + CNC precision machining process to achieve high strength, precise blade geometry, and reliable dynamic balance. The use of alloy cast steel ZG42CrMo provides an excellent balance of high tensile strength (≥700 MPa after heat treatment), superior wear resistance under high-speed rotation, and excellent fatigue resistance under cyclic centrifugal loading.
Matech's one-stop approach, covering wax pattern making, investment casting, quenching & tempering heat treatment, CNC machining (blade profiles, hub bore, keyway, balancing surfaces), shot blasting surface treatment, dynamic balance testing, dimensional inspection, and engineered packing, ensures this impeller offers excellent blade profile accuracy, tight dimensional tolerances on hub bore and mounting interfaces, and a ready-to-install finish — performing reliably in demanding transmission and rotating equipment applications.
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Custom Alloy Steel Impeller | Lost Wax Casting | ZG42CrMo Wear-Resistant Rotor Component for Transmission Systems — Matech
| Specification | Details for This Case | Matech’s Capability / Notes |
| Model / Grade | ZG42CMo | Custom manufacturing available according to customer requirements; optional materials include 42CrMo, 20Mn, 40Cr, and other premium alloy steels |
| Unit Weight | 1.2kg | Available processing weight range: 1 kg – 100 kg cast components |
| Overall Dimensions | 50 × 50×20mm | Maximum machining size approximately 1000 × 500 × 300 mm; custom dimensions based on drawings |
| Casting Tolerance | CT8–CT9 Grade | Stable casting process and precision molds ensure high dimensional consistency |
| Machining Tolerance | ±0.02 mm | Guaranteed by advanced 3/4/5-axis CNC machining centers for high-precision tolerance control |
| Surface Roughness | As-cast Ra 12.5–25 μm / Machined Ra 1.6 μm | Machined surface roughness can achieve up to Ra 0.8 μm |
| Min. Wall Thickness | 2 mm | Specialized thin-wall casting technology enables minimum wall thickness down to 3.0 mm depending on part structure |
| Heat Treatment | Heat treatment applicable | Available processes include normalizing, tempering, quenching, annealing, and high-frequency hardening with full-process temperature control |
| Surface Treatment | Shot Blasting | Optional painting, powder coating, galvanizing, anodizing, and special coatings according to application requirements |
| Application Industry | Transmission Equipment | Widely used in robotics, automotive, medical devices, general machinery, agricultural machinery, and new energy industries |
| Minimum Order Quantity | 200 pcs | Flexible MOQ, supporting prototype development and small-batch trial production |
| Sample Lead Time | 40–45 Working Days (Including New Tooling Development) | Delivery schedule depends on drawing review results; expedited production supported |
| Production Lead Time | 45–50 Working Days | Lead time determined by order quantity and product complexity; negotiable for long-term cooperation |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | Supports all mainstream 2D/3D engineering drawing formats |
| Customizable | Manufactured according to drawings or samples | Full customization available for material, structure, tolerance, and surface treatment |
| Certification | ROHS,ISO 9001:2015 | Material certificates EN 10204 3.1, dimensional inspection reports, and PPAP Level 3 documents available upon request |
| Packing | Customized PE Foam + Wooden Crate Packaging | Customized anti-corrosion and protective packaging solutions available for precision and critical components |
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.
Material Selection
From aluminum alloy to grey/ductile iron to carbon steel/stainless steel — we pour the alloy your design demands. Custom compositions are welcome. Full material certification included.
Casting Process
Our engineers tailor the most suitable manufacturing process to your specific needs based on your part's geometry, volume, and performance requirements, ensuring the optimal balance between quality and cost.
Dimensional Accuracy & Machining
We machine to your exact tolerances. In-house 3/4/5-axis CNC with custom fixtures. Casting tolerance CT4-CT11, machining tolerance up to ±0.005mm.
Heat Treatment
MATECH provides a full range of heat treatment services, including:Annealing, Normalizing, Quenching, Tempering, Carburizing, Nitriding, Solution Treatment.
Surface Treatment & Coating
Matech support: Sandblasting / Shot Blasting,Chemical Degreasing, Pickling/Passivation, Mechanical Grinding / Polishing, Zinc Plating, Hard Chrome Plating, Electroless Nickel Plating, Anodizing, Dacromet, Powder Coating, Black Oxide, Stainless Steel Passivation.
Testing, Documentation & Packaging
From material certificates to complete customs clearance documents, and from custom pallets to packaging optimized for your product's specific characteristics. Your parts arrive fully documented, well-protected, and ready for immediate use.
Our Advantages
Technical Advantages
Wax pattern shop, investment casting line, CNC machining workshop, heat treatment furnaces, surface treatment, and inspection lab — all centralized under one roof. No outsourcing. From molten steel to finished and balanced part, we maintain full control over lead time, quality consistency, and batch traceability.
Before wax pattern production begins, we provide a detailed DFM report covering solidification behavior, shrinkage analysis, gating & riser design, and machining allowance optimization. For investment cast impellers like this ZG42CrMo component, we focus on blade thickness uniformity, core strength for internal hub bores, and balanced riser placement to ensure sound metal throughout all blade roots.
We specialize in precision steel castings with complex blade geometries and fine surface detail — such as impellers, rotors, turbine components, and pump vanes. Our investment casting process delivers superior surface finish (Ra 6.3µm achievable), tight dimensional tolerances (CT5-CT7), and the ability to form intricate blade profiles with minimal machining allowance. We pour a full range of cast steels — ZG42CrMo, ZG45, ZG35CrMo, stainless steel, and alloy steel — with in-house heat treatment to tailor strength, hardness, and wear resistance to your specification.
Service Advantages-总部接待区 1 拷贝
Material Advantages
We charge carefully sorted steel scrap and certified ferroalloys (FeCr, FeMo, FeSi, FeMn) into our electric induction furnaces. Every heat is chemically analyzed by spectrometer before tapping, with real-time adjustments to carbon, chromium, molybdenum, and other alloying elements. Deoxidation practices ensure clean steel with low inclusion content — critical for maintaining consistent ZG42CrMo mechanical properties in rotating components.
Every production batch is identified by a unique heat number. Chemical composition reports, mechanical test records (tensile strength, yield strength, elongation, hardness, impact toughness), and heat treatment charts (quenching & tempering curves) are compiled into a traceable dossier — from furnace charge to finished impeller.
We pour a comprehensive range of cast steels — carbon steel (ZG35/ZG45/ZG55), low-alloy steel (ZG42CrMo/ZG35CrMo), stainless steel (304/316/CF8/CF8M), and duplex stainless steel. Whether your application demands wear resistance for high-speed rotation, fatigue strength for cyclic loading, or corrosion resistance for aggressive media, we match the grade and heat treatment to your requirements.
Service Advantages
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.
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 rotating components like impellers, first-article inspection reports including dynamic balance test results and material certification 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 investment casting projects.
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Contact Us
Contact us now! Our technical team and mechanical engineers are ready to provide one-stop support for your project from requirement review, quotation to delivery.
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