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| The pioneer of double wheel irrigation tape production line |
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| Screw & Barrel |
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| Nitridized Screw & Barrel |
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| Special Screw & Barrel |
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| Plastics Machinery |
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| Plastics Extruder |
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| Standard extruder |
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| Large-size high-efficiency extruder |
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| Highly-efficient degassing extruder |
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Extruder For Plates,
Flat Films And Sheets |
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| Pipe extruder |
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Special extruder for wire
and cable sheating |
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Chemical fiber
and nonwovens extruder |
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| Small Co-extruder |
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| Production Line For Pipes |
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| PE pipes production line |
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| PE-RT, PE-X pipe extrusion line |
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PU/PE/PVC production lines for
precision tubes for medical purposes |
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Production lines for rigid profiled
PVC,ABS,PP,PE,PC,PMMA |
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| PVC and PA hose production line |
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PVC single-wall corrugated
pipe machines |
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| Plastic sheet or plate production line |
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PP,EVA,EVOH,PS,PE Multi-
layer Sheet Co-extrusion Line |
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Plastic sheet or plate production line
(PC,PMMA,PS,HIPS,PP,PE) |
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| Extrusion line for Granulation |
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| Rubber Machinery |
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| Rubber Continuous Vul Canization Production Line |
| Rubber/Silicon/Xlpe Cv Line(Continuous Vulcanization) |
| Automobile Wire Tandem Line |
| Rubber extruder |
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| Rubber extruding production line |
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| Products >> Screw & Barrel >> Nitridized Screw & Barrel |
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Our company mainly produces nitridized screws and barrels as follows:
● Standards of injector cylinders and screw & accessories
● Single screw & Barrel extruder
● Twin parallel different direction Double screws & barrel
● Conical twin screws & barrel |
● Screws & barrels applicable to
general-purpose plastics
● Material: 38CrMoAl A Nitridized
● Case hardness of screw: HV≥750-940
● Case hardness of barrel: HV≥940-1100
● 0.5-0.8mm Depth of nitridized layer
● Nitriding brittleness: Grade 1,
surface roughness: Ra 0.4μm |
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Standards of injector cylinders and
screw & accessories |
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Standards of injector cylinders and
screw & accessories |
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Single screw & Barrel extruder |
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Single screw & Barrel extruder |
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Twin parallel different direction Double
screws & barrel |
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Conical twin screws & barrel |
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With the increasing use of engineering plastics in daily life and in industries, there are more and more varieties of engineering plastics, such as PC, PVDF and modified plastics with calcium carbonate and silicon dioxide, or with glass fibre, carbon fiber, and boron fiber. As these special engineering plastics have met the product needs, the modified plastics can be made suitable to some particular products or lower the production costs. But on the other hand, it increases the wear and corrosion of screws and barrels in some key parts. To change this situation, the company has developed new types of screws and barrels made of dual alloy, pansclerosis alloysteel, stainless steel and galvanization. |
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