Injection Moulding Machine for UPVC SWR Drainage Fittings
UPVC SWR drainage fittings such as bends, tees and sockets are moulded on horizontal injection moulding machines fitted with a PVC-suited screw and barrel. Fitting diameter, the arc core pulls for bends and the thick socket wall decide clamp size and mould height. Socket cooling usually sets the cycle time.
Drainage fittings bring large cores, curved core pulls and heavy sections, so selection centres on platen size, opening stroke and core-pull circuits. Pratishna Engineers supplies horizontal injection moulding machines for SWR fitting work and can suggest a configuration from your mould drawing.
Moulding SWR Drainage Fittings?
Share the fitting types, diameters, mould size and compound, and Pratishna Engineers will recommend a suitable machine.
Machine Requirements for UPVC SWR Drainage Fitting Moulding
SWR fittings are larger and heavier than pressure fittings of the same family, with curved bores and deep sockets. Machine needs include:
- Platen space and tie-bar distance for large drainage moulds
- Opening stroke for deep sockets and long straight cores
- Core-pull circuits for arc cores in bends and traps
- PVC-suited screw, barrel and zone temperature control
- Shot weight to fill thick socket walls without voids
- Good mould cooling, since the socket sets cycle time
Recommended Machine for UPVC SWR Drainage Fittings
Drainage fittings in this diameter band sit in the upper part of the C Series (140-320 T) and within the H Series (120-350 T), depending on fitting type and cavities. Simple couplers or single-cavity small bends may suit a larger E Series (75-180 T) machine. Bigger diameters move beyond this band and are discussed on request.
Not Sure Which Machine You Need?
Send your bend or tee drawing and mould size for a machine check.
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 KBSanitary & Bathroom Fittings Components & Machine Guide
A guide to Sanitary & Bathroom Fittings components, covering taps, bib cocks, angle cocks, health faucets, showers, cistern fittings, traps and drains. It explains PTMT, POM, ABS and UPVC, leak-free threads and seats, and how to match each part to a suitable machine.
Download PDFPDF · 203 KB
FAQs / Buyer Questions
Questions drainage fitting moulders ask before buying a machine.
Which Injection Moulding Machine Is Used to Make UPVC SWR Drainage Fittings?
A PVC-specification horizontal machine in the medium tonnage band. C and H Series machines cover bends, tees and sockets in this size range, with the E Series for lighter couplers. Larger diameters need a review of the mould.How Are Curved Bends Released from the Mould?
Bends and traps use arc core pulls that withdraw the curved core along its own radius before the mould opens. The machine needs core-pull control timed with the clamp sequence.Why Does the Socket Set the Cycle Time?
The socket is the thickest wall on the fitting. It needs long holding pressure and cooling so it does not sink or shrink out of round, and ejection waits until it is stiff enough to keep its shape.
What Mould Size and Opening Stroke Do SWR Moulds Need?
Drainage moulds are wide because of the core-pull cylinders and tall because of the socket depth. Check tie-bar spacing, minimum and maximum mould height and opening stroke before choosing tonnage.Can Pratishna Recommend a Machine for My SWR Fitting?
Yes. Share the fitting drawing, diameter, type, compound, part weight, mould dimensions, core-pull layout and cavities, and Pratishna Engineers will recommend a machine.Does the Machine Suit Other Drainage and Waste Parts Too?
Yes. It can also mould floor drain and nahani trap bodies, waste couplings, bottle traps and threaded pipe fittings, subject to the mould and material.
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.
- Machine Sales
- +91 99690 38542
- Service Support
- +91 97689 28259
- Sales Email
- [email protected]