Sunrise Machinery Introduces Heavy-Duty Chassis Castings for Commercial Vehicles
2026-09-28
Sunrise Machinery Manufactory Co., Ltd. has launched a new range of chassis casting components designed for commercial vehicle suspension systems. The product line includes spring brackets, hangers, spring seats, U-Bolt clamps, balance shaft supports, spring pads, shift forks, flanges, and various mounting brackets, serving both OEM replacement and custom application requirements.

Applications
These castings are widely used in heavy-duty trucks, medium-duty trucks, light commercial vehicles, semi-trailers, box trailers, and special engineering vehicles. They support critical functions such as load bearing, spring positioning, force transmission, shock absorption, and stability maintenance under challenging road conditions.
Materials & Hardness
| Material | Hardness | Typical Use |
|---|---|---|
| QT450-10 | 160–210 HB | Light/medium-load brackets, hangers, pads |
| QT500-7 | 180–230 HB | Spring seats and standard supports |
| QT700-2 | 225–260 HB | Heavy-duty balance shaft supports, U-bolt clamps |
| ADI (optional) | HRC 30–38 | Mining and extreme heavy-load applications |
The castings can be finished with anti-rust red paint or black /grey epoxy coating. Key holes and mounting surfaces are machined to meet dimensional accuracy requirements.
Quality&Service
Sunrise Machinery applies strict quality control through raw material inspection, casting defect detection, dimensional verification, hardness testing, and weight checking. The company supports OEM and ODM production from casting and machining to surface coating, helping customers develop reliable chassis components for global commercial vehicle markets.









