Injection Moulding Machine for Screen and Disc Filters
Screen and disc filters for drip systems are made on horizontal injection moulding machines, with housings and lids in PP or nylon and grooved discs and screen frames in PP. The housing sets machine size through its shot weight, mould height and large threaded closure. Pressure strength matters most, as the housing sits on the main line.
Selection for drip filters covers two kinds of work: large pressure housings with thread release, and thin discs or frames in multi-cavity moulds. Pratishna Engineers supplies horizontal injection moulding machines for filter production and can recommend a configuration for each part.
Manufacturing Drip Filters?
Share the filter size, housing and disc drawings, materials and volume, and Pratishna Engineers will recommend suitable machines.
Machine Requirements for Screen / Disc Filter Moulding
A drip filter body carries line pressure while its discs and screens do the filtering, so moulding needs vary by part:
- No weld lines across pressure-bearing housing walls
- Unscrewing or collapsible cores for large lid threads
- Clean O-ring grooves without flash or sink
- Full fill of fine grooves on thin filter discs
- Flat discs with balanced cooling to prevent warpage
- Drying and wear protection for glass-filled nylon housings
Recommended Machine for Screen / Disc Filters
Grooved discs, screen frames and small inline filter bodies are light shots for the E Series (75-180 T). Larger housings and lids with heavy walls and thread release mechanisms need more shot weight and mould height. Filter size then decides the step up: C Series (140-320 T) for mid-size housings, H Series (120-350 T) for the biggest.
Not Sure Which Machine You Need?
Share your housing size and disc design to match each part to a machine.
Why Choose Pratishna Engineers?
- Application-Based Machine Selection
- In-House Engineering & Manufacturing
- Multiple Machine Series
- Production-Focused Solutions
- End-to-End Technical Support
- Industry-Specific Solutions
- Machine Lifecycle Support
Injection Moulding Machine Buyer Resources
Download practical resources to help you select, size and specify the right machine.
Horizontal Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to select the right machine: product weight, projected area, number of cavities, plastic material, required clamping force, shot / injection capacity, mould dimensions, production quantity, cycle time and automation requirement.
Download PDFPDF · 265 KB
How to Calculate Clamping Force for an Injection Moulding Machine
A clear methodology that explains how clamping force is calculated, covering projected area, injection pressure, safety factor, number of cavities and material considerations.
Download PDFPDF · 363 KBAgriculture & Irrigation Components & Machine Guide
A guide to Agriculture & Irrigation components, covering drip emitters, sprinklers, lateral fittings, filters, nursery pots, crates and poultry equipment. It explains common materials such as PP, PE, POM and nylon, UV stabilisation, cavity planning, and how to match each part to a suitable machine.
Download PDFPDF · 222 KB
FAQs / Buyer Questions
What drip filter manufacturers ask our engineers before tooling up.
Which Injection Moulding Machine Is Used to Make Screen and Disc Filters?
Discs and small filter parts run on the E Series. Big housings and lids for main line filters need the C or H Series, so a filter maker often runs one small and one larger machine.How Are Filter Discs Moulded With Fine Grooves?
Discs are thin PP rings with grooves on both faces. Fast injection, good venting at the groove ends and balanced cooling fill every groove and keep the disc flat, so stacked discs seal and filter evenly.Should Filter Housings Be Moulded in PP or Nylon?
PP suits smaller filters and lower pressures. Glass-filled nylon gives a stiffer housing for higher pressure and larger sizes, but needs drying and a wear-resistant screw and barrel.
How Is the Screen Mesh Fixed in the Filter Frame?
The mesh can be placed in the mould as an insert and the PP frame moulded around it, or assembled afterwards. Insert moulding needs a mould that holds the mesh still and a gate that does not tear it.Can Pratishna Recommend a Machine for My Screen / Disc Filter?
Yes. Share drawings or samples of the housing, lid, discs or screen frame, material, part weights, mould sizes and your monthly quantity, and Pratishna Engineers will recommend machines.Does the Machine Suit Other Irrigation Parts Too?
Yes. Similar machines can mould venturi fertilizer injectors, irrigation valves, sprinkler parts and lateral fittings, depending on the mould.
Technical Disclaimer
Disclaimer: The information provided in this webpage is for general informational and educational purposes only. It is based on technical references and industry information available at the time of preparation and may be subject to change. It does not constitute engineering, technical, commercial or professional advice, nor does it constitute a quotation, specification, warranty or contractual commitment by Pratishna Engineers.
Actual injection moulding machine and process requirements vary according to the component design, material, mould, production volume, machine configuration and operating conditions. The information, examples, calculations and recommendations provided should be independently evaluated and verified for the specific application before making any equipment, process or production decision. Information obtained from third-party sources remains subject to the accuracy and limitations of those sources.
Limitation of Liability: Pratishna Engineers makes no representation or warranty, express or implied, regarding the completeness, accuracy or suitability of the information for any particular application. To the extent permitted by applicable law, Pratishna Engineers shall not be liable for any loss, damage, cost or consequence arising from reliance on or use of the information contained in this webpage. Final machine selection, configuration and application suitability should be confirmed with Pratishna Engineers based on complete and accurate project requirements.
Talk to Our Engineers
Planning a New Injection Moulding Project?
Share your component, material, mould and production target. Our engineering team will help you identify the right machine configuration.
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