Nozzle
Your Professional Nozzle 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).
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
|
Material: |
SKD61, 38CrMoAlA, 42CrMo |
|
Process: |
Inner bore Chrome plating, gas nitriding, quenching, inner bore coating |
|
Type: |
Pneumatic needle-type shut off nozzle/hydraulic hybrid shut off nozzle/static mixing nozzle |
|
Filter hole diameter: |
0.8mm minimally |
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Inner hole finish Ra: |
0.2≤Ra≤0.4 (special order is needed for Ra below 0.2) |
Benefits of Nozzle
Full radius nozzle tips
The series internally heated nozzle systems offer many advantages over their externally heated counterparts. With no exposed components and a sealed design constructed of stainless steel they are one of the most durable nozzles available. Blowing a bonnet, or polymer buildup of the nozzle body has little to no effect on the nozzle's operation or efficiency. All of these attributes combine to provide a very real saving in time and money.
Maintenance Free Operation
The precision manufacturing and stout construction provides for long term maintenance free operation, even the most challenging environments. It's completely sealed design allows for buildup of polymers around the outside with no impact to function or performance. As well, this reduces the need for maintenance personnel to perform the messy, time consuming and sometimes dangerous processes of replacing the heaters and cleaning the nozzle.
High Quality Construction and Materials
All steel parts are manufactured from Ningbo DW Machinery's very tough and high strength steel alloy.
This alloy combined with a custom heat-treat process created an incredibly wear and corrosion resistant assembly.
Precision Machining
All pieces are CNC machined with ground seating and sealing surfaces. The internal flow surface is honed and highly polished to 16/32 RMS. A smother flow surface allows for faster purging, color changes and more consistent operation.
Troubleshooting Nozzle Tip Issues
Material Leakage
Often caused by sprue bushing mismatch or damaged threads. Confirm radius compatibility and replace worn nozzles in injection moulding.
Excessive Flow or Dripping
Indicates an oversized orifice or high barrel temperature. Adjust temperature downward by 5–10°C or select a Free Flow plastic injection nozzle for better control.
Blockages
Resin degradation or contaminants can clog the injection machine nozzle. Regular purging or a nozzle filter injection molding system prevents buildup.
Inconsistent Material Delivery
May result from improper orifice sizing. Adjust the injection molding nozzle tip to match resin viscosity or mold requirements.

Logistics
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.
| The time frame of an order delivery is divided into two parts: | Processing time: 7-14 Days Shipping time: 20~30 Days |
| Shipping methods: | DDP, DAP, EXW, etc. |
| Shipping fee: | The shipping fee will be changed according to every pacel's weight. |






