Steel Large Pitch Sprocket
Custom Steel Castings & Machining — From Your Drawing to Finished Parts
This Large Pitch Sprocket is a heavy‑duty power transmission component designed for crawler excavators, bulldozers, heavy conveyor systems, mining equipment, and industrial chain drives. It is manufactured by our in‑house Sand Casting + CNC precision machining process. The use of ZG40Cr cast alloy steel provides an excellent balance of high tensile strength, good toughness, excellent wear resistance, and reliable performance under heavy shock loads and continuous operation. The sand casting process ensures the ability to produce large‑diameter, heavy‑weight sprockets with precise tooth profiles, generous fillets, and cost‑effective tooling — all critical for large pitch sprockets requiring accurate chain engagement, high load‑carrying capacity, resistance to tooth wear and plastic deformation, and long service life in demanding industrial environments.
Our one‑stop approach — covering pattern design, sand casting, CNC machining, heat treatment (quenching & tempering), tooth surface hardening (induction or flame hardening), surface finishing (shot blasting or protective coating), and engineered packing — delivers a ready‑to‑install sprocket that meets high‑strength mechanical requirements and withstands severe impact, abrasive wear, cyclic fatigue, and heavy tensile loads.
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.
China Factory Custom Sand Casting ZG40Cr Steel Large Pitch Sprocket
| Specification Item | Details for This Case | Matech’s Capability / Notes |
| Material Grade | 40Cr (conforming to GB/T 20878‑2024) | Other grades available upon request: 45, 40Cr, 42CrMo, etc. Full material certificates provided. |
| Unit Weight | 260 kg | Processable weight range: 1 kg – 80 kg * |
| Dimensions | 600 × 600 × 400 mm | Maximum working envelope approx. 1000 × 500 × 300 mm (subject to drawing review) |
| Casting Tolerance | CT9 – CT10 | Achieved through in‑house precision tooling and stable casting process |
| Machining Tolerance | ±0.02 mm | Guaranteed by 3/4/5‑axis CNC machining centers; tighter tolerances negotiable |
| Surface Roughness | As‑cast Ra 12.5‑25 μm / Machined Ra 0.8 μm | Minimum machined surface Ra 0.8 μm |
| Minimum Wall Thickness | 5 mm | Focus on thin‑wall casting production; minimum achievable 3.0 mm depending on part geometry |
| Heat Treatment | Applicable heat treatment | Tempering, annealing, quenching, induction hardening and other heat treatments available; digital control of furnace temperature throughout process |
| Surface Treatment | Painting | Options: powder coating, paint baking, etc. Corrosion resistance requirements can be met per customer specifications |
| Applications | Mining equipment | Serving robotics, automotive, general machinery, pumps & valves, new energy, and other industries |
| Minimum Order Quantity (MOQ) | 2 pieces | Flexible MOQ – prototypes / small batches supported |
| Sample Lead Time | 40‑45 working days (including new tooling) | Lead time confirmed after drawing review; expedited service available |
| Mass Production Lead Time | 45‑50 working days | Lead time determined by order quantity and part complexity; specified in contract |
| Drawing Formats | STEP, IGES, X_T, DWG, PDF | All standard 2D/3D drawing formats supported |
| Customization | Fully customizable | Material, geometry, tolerances, surface treatment – all aspects can be realized according to customer design |
| Certifications | ISO 9001:2015 Quality Management System | EN 10204 3.1 material certificate, dimensional inspection report, PPAP Level 3, and other documents available |
| Packaging | Custom PE foam + wooden case | Customized protective packaging for fragile / critical areas of parts |
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 down 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
1
Pattern shop, sand/investment casting lines, CNC machining, heat treatment,surface treatment, and inspection lab — all under one roof. No outsourcing. This vertical integration gives us complete control over lead time, quality, and traceability from raw melt to finished part.
2
Before pattern production begins, we deliver a detailed DFM report covering solidification analysis, riser placement, core design, and machining allowance optimization. We flag potential shrinkage risks, wall thickness issues, and internal cavity challenges early.
3
We specialize in components with intricate internal passageways, and high pressure-tightness requirements — such as valve bodies, pump housings, and exhaust manifolds. In-house X-ray, ultrasonic, and leak/pressure testing ensure internal integrity. Where applicable, controlled weld repair with full NDT verification and post-weld heat treatment keeps your parts on track without hidden outsourcing delays.
casting 拷贝
stainless steel 拷贝
Service Advantages-总部接待区 1 拷贝
Material Advantages
1
We charge only carefully sorted steel scrap into our electric arc or induction furnaces. Every heat is chemically analyzed by spectrometer before tapping, with real-time adjustments to carbon, manganese, silicon, and alloying elements. Deoxidation and desulfurization practices ensure clean steel with low inclusion content.
2
Every production batch is identified by a unique heat number. Chemical composition reports, mechanical test records (yield strength, tensile strength, elongation, impact toughness at ambient or low temperature), and heat treatment charts are compiled into a traceable dossier — from furnace charge to finished casting.
3
We pour a comprehensive range of carbon steels, low-alloy steels, and stainless steels — including WCB, WCC, LCC, 4140, 8630, CF8 (304), CF8M (316), duplex stainless steels, and heat-resistant grades. Whether you need wear resistance, corrosion resistance, high-temperature strength, or low-temperature toughness, we match the alloy to your operating environment.
Service Advantages
A dedicated project manager oversees the entire process — from design review to final delivery — ensuring efficient communication at every stage.
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.
Full batch traceability and 24-hour response to quality-related issues ensure reliable post-delivery support.
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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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