1. Main introduction
The precision spindles manufactured at Hengyi are between 2mm and 25mm in diameter and 400mm max. in length.
We can provide the followings:
Steel spindles, steel shafts
Stainless steel splindles, stainless steel shafts
Turned spindles Turned shafts
Ground splindles, ground shafts
Gear out splindles, gear our shafts
Heat treated splinles, heat treated shafts
2. Specifications
Material | CK45 |
O.D.tolerance | 0.001mm |
Straightness | 0.001mm |
Roundness | 0.0002mm | |
Cylinderness | 0.0005mm |
Roughness | Ra.0.001 |
Runout | 0.01mm |
Heat treatment | Hardened | |
3.Quality System
We work strictly with ISO9001, TS16949 AND 5S methodology
5S is the name of a workplace organization method that uses a list of five Japanese words: seiri, seiton, seiso, seiketsu, and shitsuke. Transliterated or translated into English, they all start with the letter "S". The list describes how to organize a work space for efficiency and effectiveness by identifying and storing the items used, maintaining the area and items, and sustaining the new order. The decision-making process usually comes from a dialogue about standardization, which builds understanding among employees of how they should do the work.
We have passedthe second audit of TS16949, We will get the certificate at the end of October'2013
Testing Method
specification | Checking tools |
Symmetry inacross flat | Gauge |
Across flat | DigitalMicrometer/Gauge |
Diameter | DigitalMicrometer |
Rounout | Dial gaugewith" V" block |
Knurling pitchdimension | Digital verniercaliper |
Knurling pitchdiameter | Digitalmicrometer |
Lenth of acrossflat | Digital verniercaliper |
Burnishing areadiameter | DigitalMicrometer/Gauge |
Length | Digital verniercaliper |
Overall lenth | Digital vernier caliper |
Splines diameter | Plain ring gauge |
Hardness | Hardnessrockwell tester |
We have our own testing center,
Runout tester
Roundness tester
Roughness tester
Projector
Hardness tester
Magnifier
4. Process:
We often use ERP system to producing quality control, the processes for the shafts are usally the following:
Raw material(Drawn) → Cutting→Rolling →lather→grinding→polish→final inspection→pick up→package→delivery
5. PPAP documents
PFEMA
CPK
Control Plan, process chart.etc
6. Raw material
Raw materials are ROHS tested from the third party every year, such SGS, CTI
7. Production machines
Auto Cutting machines
Heat treatment machins
High precision grinding machines
Auto lathers
M1020 M1050 coreless grinding machines
More than 80 pcs grinding machines
Delivery
FOB NINGBO and CIF are both OK for us
Samples
Samples are avaliable