Injection Moulding Machine for Filter Housings
Filter housing bowls, caps and brackets are moulded on horizontal injection moulding machines, using PP, glass-filled PP, SAN or PC. Bowl length sets mould height and opening stroke, while the thick wall drives shot weight and cooling time. Packing decides the result, because sink at the thread or O-ring groove causes leaks.
For filter housings, machine selection weighs shot size and cooling for the thick bowl wall against clamp size and stroke for the deep mould. Pratishna Engineers supplies horizontal injection moulding machines for filter housing production and can recommend a configuration for your bowl, cap and bracket moulds.
Moulding Filter Housings?
Share your bowl and cap drawings, resin and cartridge sizes, and Pratishna Engineers will suggest a machine for them.
Machine Requirements for Filter Housing Moulding
Filter housings carry line pressure all the time, and their thick walls bring their own moulding problems. Points to check:
- Shot weight and screw size for thick bowl walls
- Opening stroke for deep bowls on longer cartridges
- Packing and holding pressure to control sink marks
- Accurate thread form, wrench flats and O-ring groove
- Polished cavity and dried resin for clear SAN or PC bowls
- Mould cooling sized for long thick-section cooling time
Recommended Machine for Filter Housings
Caps and wall brackets for smaller housings can run on the upper end of the E Series (75-180 T). Bowls carry the larger shot and the deeper mould, so bowl tools generally fit the C Series (140-320 T), while longer bowls or multi-cavity cap tools may need the H Series (120-350 T).
Not Sure Which Machine You Need?
Send your filter bowl drawing and cartridge sizes for a machine suggestion.
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 KBWater Treatment Components & Machine Guide
A guide to Water Treatment components, covering RO housings, purifier parts, filter housings, push-fit connectors, rotameters, saddles, distributor hubs and valve parts. It explains food-contact grades, pressure strength, sealing faces, and how to match each part to a suitable machine.
Download PDFPDF · 205 KB
FAQs / Buyer Questions
What filter housing makers ask before choosing a machine.
Which Injection Moulding Machine Is Used to Make Filter Housings?
Horizontal machines in the mid to upper tonnage band. The C Series suits many bowl moulds, the H Series takes longer bowls, and the E Series can run caps and brackets.Why Do Clear Filter Bowls Crack or Craze?
SAN and PC are sensitive to chlorine, ozone and some O-ring lubricants. Residual moulding stress makes it worse, so the resin, the assembly grease and the gate design should be chosen together, and clear bowls tested with the grease actually used.How Is Sink Controlled on Thick Filter Bowl Walls?
Through enough holding pressure and hold time, a gate large enough to pack the section and sufficient cooling. Coring out thick zones in the mould design helps more than a longer cycle on the machine.
How Are Filter Housings Tested Before Approval?
Bowls are burst tested and pressure-cycle tested at a multiple of working pressure, as the applicable standard or buyer sets. Voids, weld lines and sink at the thread are the usual failure points.Can Pratishna Recommend a Machine for My Filter Housing?
Yes. Share the bowl, cap and bracket drawings, cartridge size range, material, part weights, mould dimensions and monthly volume, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Filtration Parts Too?
Yes. Similar machines can produce RO membrane housings, pressure vessel end caps, cartridge end caps and softener valve parts, depending on the mould and shot weight.
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.
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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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