Conical Twin Screw Barrel

Screw diameter: 35mm-200mm Length: less than 10000mm Barrel diameter: 35mm-200mm Material: 38crmoala; skd61; skd11; 40cr; 42crmo; high quality alloy steel Technology for tin coated screw barrel/: nitriding treatment, alloy coating spraying, heat-treatment, quenching Appliance for tin coated screw barrel/: pa, evoh, eaa, pc etc

Specifications: 45/90, 45/100,50/105, 51/105, 55/110, 58/124, 60/125, 65/120, 65/132, 68/143, 70/140, 75/150, 80/143, 92/188 The compression ratio of the screw can be designed according to different products and mixtures. Nitrided Hardness: HV 900-1000 Nitrided Case Depth: 0.45mm-0.7mm Alloy hardness: HRC50-65 Alloy depth: 0.8mm-2.0mm Materials: Quality 38CrMoAlA Advanced nitriding process Corrosion&Abrasion resistance bimetal spraying process

1.We are a professional company specialized in manufacturing many types of screw, the barrel can be applied on all types of injection moulding machine,rubber hot-feeding extruder, rubber cold-feeding extruder, pin barrel cold feed extruder, plastic extruder with different specifications. 2.The models of screw include: Variable pitch and variable depth, variable pitch and equal depth, variable depth and equal pitch, and equal depth and pitch. Groove multi-die type, composite type, mixing type and separating type. 3. The material of screw: manufactured with high-quality nitro alloy steel, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.

1.Conical twin screw and barrel 2.Alloy hardness:hrc50-65 3.Centrifugal casting(tungsten carbide) 4.Hot sale Dimension: 15/30 25/55 35/75 40/83 45/90-99 48/112-117 50/105-110 51/105-120 55/110-125 58/ 125 60/ 125-129 65/ 120-132 68/ 147 70/ 150 74/ 156-162 80/ 143-156-162 86/ 177 92/ 184-188 95/ 193 105/ 203 15/30 25/55 35/75 40/83 45/90-99 48/ 112-117 50/105-110 51/ 105-12055/ 110-125 58/ 125 60/ 125-129 65/ 120-132 68/ 147 70/ 150 74/ 156-162 80/ 143-156-162 86/ 177 92/ 184-188 95/ 193 105/ 203

1.65/132 conical twin screw and barrel 2.Alloy hardness:hrc50-65 3.Centrifugal casting(tungsten carbide) 4.Hot sale Dimension:15/30 25/55 35/75 40/83 45/90-99 48/ 112-117 50/105-110 51/ 105-12055/ 110-125 58/ 125 60/ 125-129 65/ 120-132 68/ 147 70/ 150 74/ 156-162 80/ 143-156-162 86/ 177 92/ 184-188 95/ 193 105/ 203

1.Cincinnati conical twin screw and barrel 2.Alloy hardness:hrc50-65 3.Centrifugal casting(tungsten carbide) 4.Hot sale 15/30 25/55 35/75 40/83 45/90-99 48/ 112-117 50/105-110 51/ 105-12055/ 110-125 58/ 125 60/ 125-129 65/ 120-132 68/ 147 70/ 150 74/ 156-162 80/ 143-156-162 86/ 177 92/ 184-188 95/ 193 105/ 203

1.80/156 conical twin screw and barrel 2.Alloy hardness:hrc50-65 3.Centrifugal casting(tungsten carbide) 4.Hot sale 15/30 25/55 35/75 40/83 45/90-99 48/ 112-117 50/105-110 51/ 105-12055/ 110-125 58/ 125 60/ 125-129 65/ 120-132 68/ 147 70/ 150 74/ 156-162 80/ 143-156-162 86/ 177 92/ 184-188 95/ 193 105/ 203

Specification: 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188 The above are standard specifications, we can customize according to customers' requirements. The compression ratio of screws can be designed according to different products and ingredients. Base materials: 1)38crmoala(jis sacm645) 2)42crmo(aisi 4140) 3)4cr5mosi v1 (jis skd-61) 4)9cr18mov 5)hpt Technics: Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting Technical parameter: Nitrided layer depth: 0.5-0.8mm Nitrided hardness: 900-1000hv Nitrided brittleness: less than grade 1 Surface roughness: ra0.4 Linearity of screw: 0.015mm Hard-chrome plating hardness after nitriding: ¡ý 950hv Chrome-plating layer depth: 0.025-0.085mm Bimetallic layer depth: 3mm Slushing oil coated& film wrapped in wooden case

Twin Conical Screws and Barrels Types of double screws gradual,levity,commingle,taper,supper,taper,granulating etc. Used for producing pipes,profiles and sheets of ordinary plasticíóPP,PE,ABSíóASíóPS etc