Zhejiang Bohai Machinery Co. Ltd

Zhoushan, Zhejiang, China

• MOQ 1 Set(s)

Material: 38crmoala; skd61; skd11; 40cr; 42crmo; high quality alloy steel technology: nitriding treatment, alloy coating spraying, heat-treatment appliance: pvc, pp, pe, pa, pc, abs, as etc depth of nitrated layer: 0.40-0.70mm hardness of nitration: 950-1050hv fragility of nitration: less than grade 1 surface hardness of nitrated cr coating layer: greater than 950hv hardness of bimetallic layer: hrc55-62 thickness of cr-coating layer: 0.03-0.08mm depth of bimetallic layer: greater than 2mm.

• MOQ 1 Set(s)

Material: 38crmoala treatment:nitrided+bimetallic bimetallic hardness:: hrc 58-65 nitrided hardness:hv960-1160 bimetallic thickness: 2-4mm nitrided deepness:0.6-0.9mm certificate:iso9001:2008 application: pa pvc pp pe wpc xps product application: pipe sheet profile plastic.

• MOQ 1 Set(s)

Crew diameter: φ20mm-φ300mm material: 38crmoala; skd61; skd11; 40cr; 42crmo; high quality alloy steel depth of nitrated layer: 0.40-0.70mm hardness of nitration: 950-1050hv fragility of nitration: less than grade 1 surface hardness of nitrated cr coating layer: greater than 950hv hardness of bimetallic layer: hrc55-62 thickness of cr-coating layer: 0.03-0.08mm depth of bimetallic layer: 3-5mm technology: nitriding treatment, alloy coating spraying, heat-treatment appliance: pvc, pp, pe, pa, pc, abs, as etc for our bimetallic screw, we have adopted a new technology of surface hardening process by the whole screw surface instead of only hard facing the screw flights by pta treatment. For bimetallic barrel, we have raised its tungsten carbide content to 25%, 40% and 60% from the previous 10% of tungsten carbide and increased the processing length to 10000 mm from the previous length of 4000mm. about jbohaiscrew: bohai 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 worldfamous companies, and enjoy a high reputation in plastic machinery field, because we offer customers best solutions, high quality products, perfect service, very competitive price.

• MOQ 1 Set(s)

Material: 38crmoala; alloy heat treatment: vacuum hardening hardness after hardening and tempering: hb260-290 depth of nitriding:0.55-0.85mm hardness of nitriding: hv 950-1020 fragility of nitriding:less than grade 2 depth of bimetallic layer:2.0-3.0mm hardness of bimetallic:hrc59-65 depth of chrome plating:0.02-0.15mm roughness of the surface:ra 0.4um linearity of screw and barrel:0.015mmm quality ----high quality material. the material is from baosteel in china, hitachi in japan and other materials from germany. ----new advanced machines. 3 coordinate cnc deep hole drilling machine, cnc milling machines, boring machines, other machines are equipped. ----heat treatments. hardening, tempering, surface nitriding, chrome plating, high-frequency quenching, vacuum hardening, welding bimetallic powder etc. Are available. ----experienced engineers and technicians. we have a professional technical team, who always support you. quality control ----we are quality control iso9001:2000 certified company. with experienced inspectors and advanced testing tools and equipments, our products can meet germany international standard. warranty one year warranty is offered to customers. And experienced engineer team can offer good technical support. service we are a authorized factory to import and export goods by the government. We have export the goods to germany, turkey, malaysia, etc. ----with capacity 2000 sets per year, we can make quick delivery. ----customers’ drawings are welcomed. And we can also design the drawings according to customers’ requirements. ----we can offer products with “ five-star” brand. And oem business is welcomed.

• MOQ 1 Set(s)

Parallel twin screw barrel material: 38crmoala, skd61, sacm645 surface treatment:nitrided or bimetallic nitride depth:0.5-0.8mm nitride hardness: hv900-1000 warranty:more than two years scope of application wpc pvc, wpc pe, super high molecular sheet, 12 high calcium buckle, 50-400 high calcium pipe, 50-300 high calcium profile, soft pvc sheet, xpspvcetc.pp, pe, abs, pvc, rawmaterial, pelletzing, pipe, profile, sheet etc.