إكستدر برغي واحد برميل / برغي وبرميل للطارد

Base Materials:

1)38CrMoAlA(SACM 645)

2)42CrMo(AISI 4140)

3)Cr12MoV(SKD11)

4)4Cr5MoSiV1(SKD61)

5)9Cr18MoV

6)40Cr

7)DC53 (JIS G4404)

Bimetallic Alloy Materials:

1)Fe-based alloy

2)Ni-based alloy

3)Co-based alloy

4)NiCo-based alloy

5)Wolfram carbide

Bimetallic alloy level:

Alloy powder including 40% Wolfram Carbon

Alloy powder including 25% Wolfram Carbon

Alloy powder including 9.5% Wolfram Carbon

Processing Technology: 

Heat treatment

High-frequency quenching 

Nitriding treatment

Hard-chrome electroplating 

Bimetallic alloy welding

Technical Parameter:

Quenching and Tempering Hardness:HB300-320

Nitrided layer depth:0.50-0.80mm

Nitrided hardness: 950-1100HV 

Nitrided brittleness: Less than 2 level

Surface roughness: Ra 0.4μm

Linearity of screw: 0.015mm/m

Hard-chrome plating hardness after nitriding: ≥950HV

Chrome-plating layer depth: 0.025~0.10mm 

Bimetallic layer depth: 3-5 mm

Bimetallic hardness: HRC60-70

Terms and Conditions:

Payment: T/T, D/P, D/A, L/C, WESTERN UNION, Cash

Means of transport: Ocean, Air, Express

Packing: Wooden Case (Export standard)

Production time:About 20-30 days after we receive the advanced payment 

Compared to other supplier, 

JINMAO advantages:

1.Advanced Nitriding Technology

2.Hard Metal Cold/Thermal Spraying Technology

3.Anti-corrosion and Wearresisting Duplex Metal 

Spraying Technology

4.Advanced PTA/HVOF process Technology

5.High output, good plasticizing effect,energy saving

6.Wear resistant&Corrosion resistant, longer using life of screw barrel              

7.Fast production&Rapid delivery  

8.Best customer service!

R: JINMAO is a one of the largest manufacturers, specialized in

researching, designing and manufacturing all kinds of screws, barrels, and other accessories for extrusion and injection moulding nearly 20 years.  Our company occupies more than 10000sqm and has over 100 employees. We have a series of advanced production and processing equipments such as CNC machines, Stellite PTA welding machines to ensure the quality of our products. Our Tech. and R&D team have over 10 year's experiences, and can help you improve product quality and production efficiency. Customers in 40 customers approved our products with good quality and competitive price. JINMAO MACHINERY is Chinese famous brand.