PET Screw Barrel

Your Professional PET Screw Barrel Supplier

Established in 2020 as part of East Prospects Int'l Trading Group (referred to as East Prospects), Ningbo DW Plastics Machinery Co., Ltd. (referred to as DW Machinery) specializes in the production of various precision components and the trading of machinery within this industry. Its main product and service offerings include bimetallic, nitrided, or chrome-plated screw barrel sets; tie bars, column shafts, nuts, and pistons; heater bands and couplings; gearboxes (as a sales agent); new and used injection molding machines (as a sales agent); and new and used extrusion machines (as a sales agent).

PET Screw Barrel for Bottle Preform Injection Or Extrusion Read More

Why Choose us

R&D Strength
DW Machinery possesses robust research and development capabilities, independently conducting product development, design, and innovation. The company has obtained multiple product patents.

Quality Control
In terms of quality control, as an ISO 9001 certified enterprise, DW Machinery continuously enhances its quality management system by implementing precise inspections at every stage of the production process.

Advanced Production Equipment
DW Machinery is also equipped with a comprehensive range of advanced manufacturing equipment, including a CNC Machining Center, CNC Turning Machine, Inner Hole Grinding Machine, 13-Meter Deep Hole Boring Machine, NC Drilling Machine, Computer-Controlled Nitriding Furnace System, Centrifugal Casting Furnace, PTA Bimetallic Spraying Equipment, Gear Milling Machine, and more.

Parameter

Model NO.	PET screw barrel
Technics	Machining
Material	Alloy Steel
Specification	D16~d500mm

Features of PET Screw Barrel

Increased Efficiency

A well-designed PET screw barrel ensures optimal material flow and better heat distribution, leading to higher productivity.

Longer Equipment Lifespan

Durable materials and coatings help prevent premature wear and reduce downtime.

Better Product Quality

A consistent melt temperature and quality process reduce defects in the final product.

PET Screw Barrel for Bottle Preform Injection Or Extrusion

Application of PET Screw Barrel

For plastic product extrusion: Including blow film, sheet, plate, and pipe extrusion.
For chemical fiber extrusion: Such as polyethylene terephthalate (PET), nylon 6 (PA6), as well as film, non-woven fabric, and rope fiber production.
For plastic recycling and Pelletizing Applications.
For cable extrusion: Including materials such as polyvinyl chloride (PVC), polyethylene (PE), polybutylene terephthalate (PBT), and rubber fluoride.

Additional Information

Terms Of Payment	We usually accept T/T, L/C, Paypal, Credit card, etc. If you prefer other payments terms, please feel free to discuss with us.
Shipping	We offer various shipping methods, including sea freight, air freight, and express delivery, depending on the order size and destination.

FAQ

Q: What is the wear tolerance of a screw and barrel?

A: A wear tolerance of around 0.1 to 0.2 mm (0.004 to 0.008 inches) is often acceptable before the barrel needs to be replaced or refurbished.

Q: What is the purpose of the screw in the injection barrel?

A: The melted plastic is stirred by the screw, which moves along the groove into the front of the barrel and pushes the screw back. The screw takes an important role in injection machine. It's function is conveying, compacting, melting, stirring and pressing the plastic.

Q: What is the gap between screw and barrel?

A: The gap between the screw and barrel is typically 0.1% to 0.5% of the barrel's internal diameter, depending on the material being processed. This small tolerance ensures proper mechanical operation without undue wear or energy loss.

Q: How does a screw barrel work?

A: It consists of a rotating screw housed inside a stationary barrel. The screw's rotation generates heat and pressure, which melt the plastic material and push it forward through the barrel. This process ensures uniform mixing and prepares the material for further shaping or moulding.

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