• Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    We do business with each other for long time and will continue our cooperation. Quality partner!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Alexiou Aris
    Good quality and competitive price, I'm sure we will go further and further!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Work together long time, we like friends each other, easy to get along with, very pleasant cooperation!
Contact Person : Leela
Phone Number : 86-13586885132
WhatsApp : +8613586885132

Carbonitriding Quenching Gas Furnace Sinter 7KN Spacer Sleeve HRB 60

Place of Origin China
Brand Name WEIWO
Certification ISO9001:2008
Model Number OEM sinter parts
Minimum Order Quantity 1000pcs
Price negotiation
Packaging Details Standard exporting package
Delivery Time 30 working days for new samples
Payment Terms T/T, Western Union
Supply Ability 50,000pcs per month
Product Details
Product Name Spacer Sleeve Heat Treatment Carbonitriding Quenching
Material Fe - C - Cu Or Alloy Powder Engine Type Gasoline
Dimensions Can Be Customized Treatment Steam
Hardness HRB60-80 Sample Free Samples Available
High Light

7KN shaft spacer sleeve


Sinter shaft spacer sleeve


HRB 60 Spacer Sleeve

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Product Description

Crushing Strength 7KN Spacer Sleeve With Steam Treatment And Sinter Technology




Place of origin:Zhe Jiang, China

Material: iron powder metallurgy






Powder Metallurgy


Wax Model Injecting Machine, Shell Making Line, dewaxing Line, Heat Treatment Mesh Belt Furnace, Gas Furnace, Painting Line, etc.

Drawing soft ware used


Inspection equipment

Tensile tester, Hardness tester, Metal Micro-structure, Coordinate measure, optical Spectrometer, impact tester, rough tester and so on


Carbon steel, stainless steel, iron, copper, brass, aluminum

Surface Finish

Passivation, Zinc, nickel, chrome plate, black, Dacromet




We manufacture various kinds of powder metallurgy parts such as bushing, bearing, gear, block, guide and other OEM structure sinter parts.


1. Bushing piston ring/PM piston shock absorber parts/sliding bearing


2. Shock absorber parts including bushing, PM piston, Rod guide etc.


Product Name


Spacer sleeve


Raw Materials: MPIF FC-0205


The process of the parts


1. Mould production (inspection)


2. Powder blending (inspection)


3. Compression (inspection)


4. Sintering (inspection)


5. Steam treatment (inspection)


6. Finishing machining (inspection)


7. Package


8. Shipment




1. Density from 6.5-6.7 g/cm3


2. Hardness: HRB 60-100


3. Steam treatment: 2H high temp steam holding time, Thickness of Fe3O4: 0.004-0.005mm


4. Full line products for shock absorber, including powder metallurgy piston, rod guide, foot valve, PTFE band for piston, Du bearing for rod guide.


5. PPAP III is submitted accordingly.


Production process:   


1, Material


2, IQC


3, Mixing


4, Compacting


5, Sintering


6, Post Treatment


7, QC


8, package and delivery




1. Automotive Part


2. Motorcycle Part


3. Pump Parts


4. Locomotive Parts


5. Machinery Parts


6. Tool Parts


Competitive Advantage:


High quality guarantee:


(1) Electronic balance ensure density


(2) Test equipments to ensure crushing strength


(3) QC an PQC to ensure close tolerance and accurate dimension


Design ability: 


Develop different models of gear, bearing, bushing, structural parts etc. can produce according to drawings or samples.


Picture show:

Carbonitriding Quenching Gas Furnace Sinter 7KN Spacer Sleeve HRB 60 0