Qingdao Sande Technology Co., LTD
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Durable Forged Transmission Components for Automotive & Heavy Equipment Applications
Product Overview
We manufacture precision-forged gearbox housings and differential cases using high-grade alloys and new condition dies for superior dimensional accuracy. Our components are engineered for :
✔ Automotive Transmissions (Passenger & commercial vehicles)
✔ Heavy-Duty Differentials (Trucks, tractors, mining equipment)
✔ Industrial Gearboxes (Wind turbines, marine propulsion)
✔ Off-Road & Military Vehicles (High-stress environments)
Key Features & Benefits
1. Superior Forging Quality
New Die Sets for optimal dimensional consistency (±0.2mm tolerance)
Closed-Die Forging Process enhances grain structure & fatigue resistance
Material Options: 4140 steel, 4340 alloy, aluminum A356-T6
2. Performance Advantages
30% stronger than cast alternatives
Excellent impact resistance at extreme temperatures
Reduced machining requirements (near-net shape)
3. Custom Engineering Support
CAD/CAM die design services
Heat treatment customization (quench & temper, T6 aging)
Balanced machining allowances (3-5mm standard)
Technical Specifications
| Parameter | Specifications |
|---|---|
| Process | Closed-Die Hot Forging |
| Weight Range | 5kg - 150kg |
| Materials | Carbon steel, alloy steel, aluminum |
| Dimensional Tolerance | ±0.3mm (forging), ±0.05mm (machined) |
| Surface Finish | As-forged to 32Ra (machined) |
| Production Capacity | 50,000+ units/month |
Industries Served
Automotive Tier 1 Suppliers
Transmission cases
Transfer case housings
EV reduction gearboxes
Heavy Equipment Manufacturers
Bulldozer final drives
Excavator swing reducers
Agricultural tractor axles
Specialty Vehicle Builders
Racing differentials
Armored vehicle transmissions
Marine gear housings
Ordering & Customization
Standard Options :
As-forged blanks
Semi-machined (bearing bores, mounting faces)
Fully finished (ready-to-install)
Value-Added Services :
Non-destructive testing (UT, MPI)
Protective coatings (phosphate, powder coat)
Sub-assembly with gears/bearings
Request a Quote
Provide :
Part drawings or samples
Annual volume requirements
Material specifications
Required certifications (IATF 16949, etc.)
Welcome to contact our team, we will give you the best service!