CNC machining of step shaft
1. Introduction to step shaft
Step shaft is a shaft with multiple cylinders with different diameters connected together like steps. The turning of the stepped shaft is actually a combination of outer circle and plane turning. We must therefore take into account the dimensional accuracy is required and the length of the outer circumference of the step in turning.
The technical requirements of step shaft:
1. The coaxiality between the outer circles of each gear.
2. The perpendicularity between the outer circle and the step plane
3. The flatness of the step plane
4. Clear corners at the intersection of the steps of the outer circle
2. Production capacity
CNC lathe processing: Φ5mm-Φ60mm * 700mm
CNC milling machine processing: 800mm * 1500mm * 700mm
3. Technical parameters
| product | Machinery Parts |
| certificate | ISO9001，ISO/ TS16949 |
| material | Alloy steel, carbon steel, stainless steel, stainless iron |
| Surface treatment | Oxidation, blackening, electroplating, polishing, black matt treatment, sandblasting |
| Testing equipment | projector, Roughness Tester, Thread pitch runout measuring instrument, Calipers, micrometer, Lever micrometer, Micro thread calipers, Gauges, Rockwell hardness tester, Webster hardness tester, Diameter gauge, Gear Testing Center, Roundness tester, deflection tester, Only pass rules, High profile, Thread gauge etc. |
| Processing Equipment |
CNC machining center, CNC lathe, CNC milling machine, Internal and external cylindrical grinders, Centerless grinder , CNC grinder, Automatic lathe, grinder, Stamping machine, Welding machine, Drill press, Tapping machine, Wire cutting, Thread rolling machine, CNC gear hobbing machine, Surface superfinishing machine, etc. |
| Drawing format | PDF, dwg, CAD，JPG, Solidworks |
| Production capacity | 100,000 pcs/month |
| Size range | OD: Φ4mm-Φ50mm, length ≤700mm |
| Application field | Fitness equipment, automobiles, air conditioners, household appliances, office appliances, medical equipment, etc. |
| package | Plastic bag + carton + (pallet), plastic bag + wooden box, according to customer requirements |
| Delivery time |
Sample: 10-15 days; Batch: According to the order quantity |
| Roundness | 0.001mm |
| Roughness | Ra0.04 |
| Flatness | 0.001mm |
| hardness | HRC/HV |
| Precision | Level 6 |
| tolerance | +/-0.001mm |
5. Advantages of the shaft manufacturer
① Precise customized processing of drawings and samples;
② A shaft manufacturing enterprise, with more than 20 years of experience in precision shaft machining, and strong technical support. Advanced processing equipment, complete inspection equipment and a strong logistics inspection team;
③ 100% factory inspection, quality assurance;
④ Strong productivity and short processing cycle.
6. Machining of common shaft materials
| stainless steel | SS201，301，304，SS303，SS304，SS316 |
| Carbon steel | 20#，35#，45# |
| Stainless iron | 1Cr17，2Cr13，3Cr13，6Cr13，7Cr17 |
| Other commonly used alloy steels | 35CrMo，20Cr，40Cr，40CrMo，42CrMo，20CrMnTi，20CrMMnMo |
| stainless steel | Other steel materials |
| polishing | Blackening |
| plating | Galvanized |
| Sandblasting | Nickel plated |
| Laser engraving | Chrome plating |
| Carburizing | |
| Heat treatment |
8. Strict inspection standards
① A strong QC team;
② Incoming inspection of raw materials;
③ First inspection, patrol inspection, random inspection;
④ 100% factory inspection.
