Stainless steel 304 welded assemblies for glass machinery, blow molding and injection molding lines.
Values below are the standard range keytrond holds for this part family. Tighter requirements are reviewed against the drawing before quotation.
| Tolerance range | IT8 - IT10, frame squareness ±0.2 mm |
|---|---|
| Surface roughness | Ra 3.2 on machined pads |
| Common materials | SUS304, SUS316L |
| Surface treatment | Passivation, Pickling, Bead blasting |
| Machining processes | Welding, CNC Milling, Surface Finishing |
| Max machining size | 1200 × 800 × 1500 mm |
| Applicable industries | Glass Machinery, Blow Molding Machine, Injection Molding Machine, General Automation |
| Minimum order | 2 pcs for sample, 20 pcs for batch |
| Lead time | Sample 7-10 days, batch 15-22 days |
| Drawing requirement | Please mark weld symbols, material certificate requirement, surface finish and assembly tolerance. |
Stainless steel welded parts are used where the machine frame sees water, cleaning agents or corrosive process gas. Glass washing lines, blow molding units and injection molding machines all use SUS304 frames, tanks and brackets that must stay clean and rust free over years of service.
Sheet and tube are cut, fit up in a fixture and TIG welded. After welding, the assembly is pickled to remove heat tint, passivated, and then machined pads are finished where a mating surface is needed. The finished part is wrapped separately to avoid scratches during transport.
| Inspection item | Method and instrument |
|---|---|
| Weld penetration | Visual check, dye penetrant on request |
| Frame squareness | Square and dial indicator on surface plate |
| Surface condition | Visual check after pickling, no heat tint |
A first article inspection report with dimensional results, material certificate and heat treatment record is provided for sample orders. Batch orders are sampled at 10 percent, with full inspection available on request.
GlassWelded and machined assembly in 45# steel and QT500 ductile iron for glass processing lines, finished with industrial paint.
ShaftsPrecision ground shaft used as a linear measuring and guiding element, with controlled straightness over full length.
GearsSpur and helical gears in alloy steel, carbon steel, bronze and POM, cut and ground to GB/T 10095 grade 6 to 8.
BushingsSliding bearing bushing with machined oil groove, bored to H7 for press fit into housings.