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OEM Gray Iron Sand Casting CNC Machined Gearbox Housing Parts

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Product Spotlights

High-strength gray iron sand castings precision-machined with CNC for optimal gearbox performance. Offers excellent vibration damping, wear resistance, and complex geometry capability. Full OEM/ODM support with rigorous ISO/IATF quality control. Ideal for automotive, agricultural, and industrial machinery applications. Global export expertise ensures reliable delivery.
Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Gearbox housings, transmission cases, industrial machinery parts
Material:
Gray Iron (ASTM A48 Class 30/35/40)
Process:
Sand Casting with CNC Machining
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Application Other, Gearbox housings, transmission cases, industrial machinery parts
Material Gray Iron (ASTM A48 Class 30/35/40)
Process Sand Casting with CNC Machining
Surface Finish Machined surfaces, as-cast surfaces, painted or coated (optional)
Standard ISO 9001, IATF 16949 (based on provided certifications)
Service OEM/ODM, Custom Design, Precision Machining
Weight Range Customizable from 1 kg to 500 kg
Dimensional Tolerance CT8 to CT10 (Casting), ±0.05mm to ±0.1mm (Machining)
Lead Time 20-35 days for sample, 30-50 days for bulk order

As a leading manufacturer with over a decade of experience, Henan San Kuang Machinery Technology Co., Ltd. specializes in providing high-precision, durable Gray Iron Sand Casting CNC Machined Gearbox Housing Parts. Our commitment to quality, backed by a robust 10,000-30,000 sqm facility and stringent certifications like ISO 9001 and IATF 16949, ensures every component meets the exacting demands of global industrial applications. We combine traditional sand casting expertise with advanced CNC machining to deliver OEM parts that offer superior strength, dimensional accuracy, and cost-effectiveness for your powertrain assemblies.

Our gearbox housings are engineered for reliability and performance in demanding environments. Key features and benefits include:

  • Superior Material Integrity: Utilizing high-grade gray iron (ASTM A48 standards), our castings provide excellent vibration damping, wear resistance, and compressive strength, which are critical for gearbox longevity.
  • Precision Manufacturing Process: The sand casting process allows for complex geometries and internal passages, followed by precise CNC machining on critical sealing surfaces, bolt holes, and bearing seats to ensure perfect fit and function.
  • Customized Design Flexibility: We offer full OEM/ODM services. Our engineering team can work with your drawings or develop designs from concepts, optimizing the part for manufacturability, weight, and performance.
  • Rigorous Quality Control: Every batch undergoes multiple inspections, including dimensional checks, material analysis, pressure testing (if required), and visual inspection, ensuring consistency and adherence to specifications.
  • Cost-Effective Solution: The sand casting method is ideal for medium to high-volume production, offering an excellent balance between tooling cost, per-part price, and mechanical properties.

Detailed technical specifications for our standard offerings are summarized below. All parameters are customizable upon request.

Parameter Specification / Capability
Primary Material Gray Iron (GGG-40, GGG-50, ASTM A48 Class 30, 35, 40)
Casting Process Green Sand Casting, Resin Sand Casting (for complex cores)
Max. Casting Dimension Up to 1500mm x 1000mm x 800mm
Cast Weight Range 1 kg - 500 kg
Casting Tolerance CT8 to CT10 per ISO 8062
CNC Machining Tolerance ±0.05mm to ±0.1mm (standard), tighter tolerances available
Surface Roughness (Machined) Ra 1.6μm to Ra 3.2μm
Secondary Operations Shot blasting, painting, powder coating, anti-rust treatment, assembly
Applicable Industries Automotive, Agricultural Machinery, Construction Equipment, Industrial Gearboxes, Mining Machinery

Choosing Henan San Kuang as your partner means aligning with a proven supplier. Our annual export value of US$2.5-5 Million and presence in major markets across North America, Europe, Asia, and beyond testify to our global reliability. With ports like Shanghai, Qingdao, and Tianjin at our disposal, we guarantee efficient logistics. Our comprehensive certifications, including ISO 9001 and IATF 16949, are not just badges but a framework for our daily operations, ensuring traceability and continuous improvement. Let our team of 51-100 dedicated professionals provide you with a gearbox housing solution that enhances your product's durability, reduces assembly issues, and optimizes your supply chain cost. Contact us today for a quotation or to discuss your specific project requirements.

Frequently Asked Questions (FAQ)

  1. Q: What are the main advantages of gray iron for gearbox housings?
    A: Gray iron offers exceptional damping capacity to reduce gear noise and vibration, good thermal conductivity, and high compressive strength. It's also cost-effective and easily machinable, making it a preferred material for such applications.
  2. Q: Can you work from my existing 3D model or drawings?
    A: Absolutely. We specialize in OEM services. Simply provide your STEP, IGES, or 2D drawings, and our engineering team will handle the rest, including manufacturability analysis and tooling design.
  3. Q: What is your typical lead time for prototype and production?
    A: Sample lead time is generally 20-35 days after design confirmation. For bulk production orders, lead time ranges from 30-50 days, depending on quantity and complexity.
  4. Q: Do you provide full machining, or just the raw casting?
    A: We offer both. You can purchase the precision sand-cast part only, or we can provide a complete, ready-to-install component with full CNC machining and surface treatment as per your specifications.
  5. Q: How do you ensure the consistency and quality of large batch orders?
    A: Our process is controlled under ISO 9001 and IATF 16949 standards. We employ Statistical Process Control (SPC), first-article inspection, in-process checks, and final batch inspection to guarantee consistent quality throughout the production run.
  6. Q: What surface treatment options are available?
    A: Standard options include shot blasting, primer painting, and anti-rust oil. Custom powder coating, galvanizing, or other specific treatments are also available upon request.
  7. Q: What is your minimum order quantity (MOQ)?
    A: For standard items, MOQ can be as low as 50 pieces. For custom-designed parts, MOQ is negotiable based on tooling investment and part complexity.
  8. Q: Which shipping ports do you use, and can you handle export documentation?
    A: We regularly ship from Shanghai, Qingdao, Tianjin, and Lianyungang ports. We provide full export documentation services, including commercial invoice, packing list, certificate of origin, and bill of lading.
Product Tags: Gray Iron Gearbox Housing , CNC Machined Casting Parts , OEM Sand Casting Components

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Gold Verified Supplier
1Yr
Verified Business License
Year Established
2014
Factory Size
10,000-30,000 square meters
Annual Export Value
US$2.5 Million - US$5 Million
Total Employees
51 - 100 People