Project Description
We supply various tubular shaft or solid shaft for the commercial door and garage door, we have 10 years exported experience in this product, we can satisfy customer’s standard and special request.
1. Material: Carbon steel (Grade, 20# or SAE 1020)
2. Techniques:
- Cold drawn (the shafts are cold drawn from hot-rolled seamless steel pipe, not extruded from zinc plated steel.)
- Annealing: We did the heat treatment after the shafts cold drawing to induce ductility, soften material, relieve internal stresses, refine the structure by making it homogeneous, and improve cold working properties.
- Straightening: The straightening process is arranged at a specially designed machine for hollow shaft.
- Galvanizing: The galvanization is up to the exporting standard.
- Inspection: The inspection is basically according to the contract and drawing specifications.
1″ round tubular shaft without keyway for garage door
| OD(Outside Diameter): | 1″(=25.40mm), 1.25″(=31.75mm) |
| WT(Wall Thickness): | 2.00mm, 3.00mm, 4.00mm, 11 gauge, 14 gauge, 16 gauge, etc |
| Length: | 2.0-7.3 meters |
| Surface: | Black with oil; Galvanized; |
1″ round tubular shaft with keyway for garage door
| OD(Outside Diameter): | 1″(=25.40mm), 1.25″(=31.75mm) |
| WT(Wall Thickness): | 2.00mm, 3.00mm, 4.00mm, 11 gauge, 14 gauge, 16 gauge, etc |
| Length: | 2.0-7.3 meters |
| Key-way: | 1/4″(6.35mm) |
| Surface: | Black with oil; Galvanized; |
1″ round solid shaft with keyway for garage door
| Solid rod Diameter: | 1″(=25.40mm), 1.25″(=31.75mm) |
| Key-way: | 1/4″(6.35mm) |
| Length: | 2.0-7.3 meters |
| Surface: | Black with oil; Galvanized; |
