Single Screw and Barrel for film blowing Machines

Single Screw and  Barrel for film blowing Machines     Specification:  Diameter: Ø15-Ø300 L/D ratio:15-55   we can manufacture all types of screws and barrels according to clients' requirement.  

Base Materials:	1)38CrMoAlA(SACM 645) 2)42CrMo(AISI 4140) 3)Cr12MoV(SKD11) 4)4Cr5MoSiV1(SKD61) 5)9Cr18MoV 6)40Cr
Bimetallic Alloy Materials:	1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide
Processing Technology:	Heat treatment High-frequency quenching  Nitriding treatment Hard-chrome electroplating  Bimetallic alloy welding
Technical Parameter:	Nitrided layer depth:0.50-0.80mm Nitrided hardness: 900-1100HV  Nitrided brittleness: Less than 2 level Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: ≥950HV Chrome-plating layer depth: 0.025~0.10mm  Bimetallic layer depth: 2 mm Bimetallic hardness: HRC50-65
Suitable Plastic Material:	PP,PE, HDPE,LDPE,LLDPE
Fully hard screw HPT series:  1)HPT1 Wear resistant type: Apply to below 30% glass fibre, bakelite, PC lucency etc; 2)HPT2 Corrosion resistant type: Apply to below 60% glass fibre, heatproof, high-pressure proof and high-speed proof; PC+glass fibre, Nylon+glass fibre; 3)HPT3 Wear resistant and Corrosion resistant type: Apply to non-stick raw materials, magnetic powder, ceramic powder, Aluminum magnesium powder, iron powder, copper powder; 4) HPT4 Wear resistant and Corrosion resistant type: Apply to stickiness raw materials, halogen free plastics.

    Operation Flow: Customer Order → Product Design/Customer Drawing → Production Flow Arrangement → Material Procurement → Detecting  Blanking → Detecting → Rough Machining → Detecting → Quenching and Tempering → Detecting → Semi Finishing Machining → Detecting → Nitriding Treatment /Bimetallic Alloy Spraying Treatment → Detecting → Finish Machining → Detecting → Packing and Shipping → After-sale Service   Our factory and equipment: Application: ISO9001:2008 quality certificate:  About JINMAO:    JINMAO is one of the largest manufacturers, which specialized in researching, designing and manufacturing high precise screws, barrels, and other accessories for plastic&rubber processing machine. Our company won the approval of our customers, including many world famous companies, and enjoy a high reputation in plastic machinery field, because we offer customers best solutions, high-quality products, perfect service, also very competitive price.   Our advantages: 1)Strong strength and rich experiences 2)ISO9001: 2008 strict quality control  3)High-quality products 4)Large international market 5)Perfect services 6)On time delivery 7)Very competitive price   If you are looking for a reliable screw barrel supplier, we will be your best choice.   Thanks for you visiting. Hope to cooperate with you. Welcome to contact us~ Thank you!    Why choose us?Good quality,good price,the most important is good after sale service for you.