Product Parameters
| Item | Specification |
|---|---|
| Material | Aluminum (A356-T6, 6061-T6, 319-T6) |
| Manufacturing | Die Casting, Sand Casting, CNC Machining |
| Application | Industrial gearboxes, robotics, marine gearboxes |
| Size Range | Up to 1 meter |
| Surface | As-cast, machined, powder coated |
| MOQ | 10 pcs |
description
Aluminum gearbox casings contain and protect gears, shafts, and bearings in power transmission systems - the casing must be stiff enough to maintain gear mesh alignment under load, provide accurate bearing supports, and include seals to retain lubricant and exclude contamination. Die casting produces smooth, thin-walled casings with good dimensional accuracy for high-volume production. Sand casting handles larger casings and lower volumes where die tooling cost would be prohibitive. Most aluminum gearbox casings require CNC machining for bearing bores, mounting faces, and seal surfaces.
Why Gearbox Stiffness Affects Gear Noise
A flexible gearbox casing allows gears to deflect under load, which changes the gear mesh pattern and increases gear noise. A stiffer casing keeps gears in proper mesh, which reduces the dynamic loads that create noise and vibration. This is why industrial gearboxes for precision applications specify rigid housings - it is not just about durability.
FAQ
Q1: MOQ?
A1: 10 pieces for aluminum gearbox casings.
Q2: Materials?
A2: A356-T6 (die casting), 6061-T6 (machined from plate), 319-T6 (sand casting).
Q3: Size range?
A4: Up to 1 meter depending on manufacturing method.
Q4: Surface finish?
A4: As-cast internal, machined bearing and mounting surfaces, powder coated external.
Q5: Manufacturing methods?
A5: Die casting (high volume), sand casting (large parts), CNC from plate (custom).
Q6: Custom configurations?
A6: Yes. Custom shaft arrangements, bearing sizes, port and seal locations.
Quality is non-negotiable in precision manufacturing. Every component undergoes rigorous inspection at each stage of production.
- ISO 9001:2015 - Certified quality management system covering design, machining, and inspection
- CMM Inspection - Coordinate measuring for complex geometries and tight tolerances
- Surface Roughness Measurement - Ra, Rz, and Rt charting with every inspection report
- Passivation / Electropolishing - ASTM A967 procedures for corrosion resistance
- Material Traceability - Heat number tracking from raw material to finished part
- First Article Inspection (FAI) - Full dimensional report included with every new order
From raw material to finished product, every step is controlled and documented:
- Pattern Making - Wooden or metal pattern fabrication for sand/centrifugal/investment casting
- Molding - Sand casting, shell mold, centrifugal, or lost-wax investment casting setup
- Melting & Pouring - Controlled furnace melting with chemistry and temperature monitoring
- Solidification & Shakeout - Controlled cooling with riser/removal and core shakeout
- Heat Treatment - Annealing, normalizing, or solution treatment per specification
- Machining - CNC machining, drilling, and tapping to final dimensions
- Surface Treatment - Grinding, welding, or coating as required
- Inspection & Testing - Dimensional, visual, hydrostatic, or NDT inspection
- Cleaning & Packaging - Sand removal, degreasing, rust prevention, and packaging
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