Audited Supplier
1.Piston, bottom valve, rod guide made by powder metallurgy technology.Using fe-c-cu powder, the mould is pressed, sintered and machined.
2.Product features:
The piston and the bottom valve mainly provide damping for the shock absorber ,rod guide mainly guide for the movement of piston rod.
Technological process: mixing powder - forming - sintering - cleaning -Steam treatment - Bending-Press bushing-Appearance inspection, packing
Mixing powder: Fe - C - Cu powder by high density sieve to remove impurities, automatic blending machine 360 ° rotating more than 4 hours, make the material mix evenly
Molding: precision mould with automatic CNC hydraulic press to ensure the density of all parts meet the process requirements after pressing.
Sintering: the product is controlled by the net belt type sintering furnace, which ensures the mechanical properties and hardness of the products to meet the technical requirements.
Oil immersion: place the product in a high pressure vessel so that the oil can fully penetrate into the product's pores and avoid the rust of the later cycle.
Plastic: precision mould with full automatic CNC hydraulic press, the product density and mechanical properties are further improved after pressing, and the dimensions meet the requirements of the drawing.
Machining: finish the hole, groove and other details of the product.
Cleaning: the mesh belt adopts ultrasonic cleaning machine to remove impurities and iron filings.
Steam treatment: the product is treated by steam in the electric furnace, which improves the mechanical properties of the product, and the surface oxidation layer helps to prevent rust.
Packing: the piston is covered by a fully automatic numerical control machine covering the PTFE lubrication belt.
Press bushing: pressed into DU bushing.
Appearance inspection, packing.
3.Specification :
Product Details | |
| Product Name | Powder Metal Sintered Part for Shock Absorber |
| Material | (MPIF 35) FC-0205 (DIN 30910-4) Sint C10, Fe, Balance, Cu 1.5-3.9%, C 0.3-0.6% |
| Density | 6.4-6.9 g/cm3 after steam oxidation |
| Hardness | 60-115 HRB, loading 1 kN, diameter of ball 1/16″ |
| Surface Treatment | Steam oxidation, 2 hours, Fe3O4: 0.004-0.005mm, degree of oxidation 2-4% |
| Unspecified Tolerance | ISO 2768 - m / H14, h14, +- IT14/2 |
| Apperance | No crumbling, cracks, exfoliation, voids, looseness, metal pitting and other defects |
| Process Flow | Powder mixing - Forming - Sintering - Oil impregnation - Sizing - Ultrasonic cleaning - Steam oxidation - Oil impregnation - Final inspection - (+ DP4 bushing / +PTFE band) Packing |
| Application | For automobile, motorcycle and bicycle shock absorber |
Our Advantages: | 1. More than current 3000 moulds ,save your mold cost 2. ISO/TS 16949:2009 certificate 3.Competitive price 4.Strictly quality control capacity of APQP,FEMA,MSA,PPAP,SPC |
Main product range: shock absorber , auto coilover , piston rod , stamping part, powder metallurgy ,spring,stamping part,tube, oil seal, discs, rubber parts and other auto parts . The partner factories has got the TS16949 certificate .
There is complete production facilities include : CNC machine, lathe machine, grinding machine and so on ,some of machine bought from abroad , with high precision . Max also have a series of testing equipment to control quality , such as projector, roughness tester, micro hardness tester, universal tensile machine, Metallography analyzer, thickness tester, salt spray tester .
Max's engineers team with rich experiences in the line of auto parts, they will not only source products for customers, but also provide technical support , production all-time supervision and quality track service . OEM and ODM both available .
Max could provide all kinds of inspection service and report include PPAP report , RT, UT, MPI, WPS & PQR and so on .
Max's products have been exported to Russia , Europe, Japan ,Korea, Africa, Canada, USA, Australia and so on .
Max has a good reputation and established long term relationship with customers .
Max aim at got a win-win cooperate with customer , we believe that Your business is our success !
We are based in Zhejiang, China, start from 2016,sell to Eastern Europe(35.00%),North America(20.00%),Southern
Europe(11.00%),South America(10.00%),Southeast Asia(10.00%),Africa(3.00%),Oceania(3.00%),Mid East(3.00%),Western
Europe(2.00%),Eastern Asia(00.00%),Northern Europe(00.00%),South Asia(00.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Piston Rod,Coilover,Motorbike Shock Aborber,Sintered Part,Spring
4. why should you buy from us not from other suppliers?
Max's engineers team with rich experiences in the line of auto parts, they will not only source products for customers, but also
provide technical support , production all-time supervision and quality track service . OEM and ODM both available .
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese
