Injection Moulding Machine for Pipe Fittings
Pipe fittings such as elbows, tees, reducers and unions are made on horizontal injection moulding machines in UPVC, CPVC, PPR or PP. Fitting diameter, cavity count and the number of hydraulic core pulls decide the machine. Each socket is formed by a core that must pull before ejection, and PVC grades need tight barrel heat control.
Choosing a machine for fittings means matching the largest diameter in the range to mould space, core pull circuits and shot capacity. Pratishna Engineers supplies horizontal injection moulding machines for elbow, tee and reducer moulding and can suggest the size and screw for each range.
Moulding Pipe Fittings?
Tell Pratishna Engineers the fitting types, diameter range, material and cavities per mould to get a machine recommendation.
Machine Requirements for Pipe Fitting Moulding
Fitting moulds carry several cores, and PVC does not tolerate overheating, so check these points on the machine:
- Several hydraulic core pull circuits with sequence control
- PVC-suited screw and barrel with corrosion protection
- Mould space and opening stroke for long socket cores
- Gating placed to keep weld lines away from sockets
- Socket sizes held for solvent cement or ring joints
- Shot capacity matched to the largest fitting diameter
Recommended Machine for Pipe Fittings
Small elbows, tees and reducers in multi-cavity moulds can run on the E Series (75-180 T). Mid-size pressure fittings and moulds with more core pulls suit the C Series (140-320 T), and the H Series (120-350 T) covers the larger fittings in this range. Large-diameter drainage fittings that need more clamping force than these series offer are discussed on request.
Not Sure Which Machine You Need?
Share your fitting range and core layout for a machine recommendation.
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 KBPVC Pipes & Fittings Components & Machine Guide
A guide to PVC Pipes & Fittings components, covering elbows, tees, couplers, valves, end caps, saddles and threaded adaptors. It explains PVC-suited screw and barrel, core pulls and unscrewing moulds, sizing by pipe diameter, and how to match each part to a suitable machine.
Download PDFPDF · 218 KB
FAQs / Buyer Questions
Points fitting makers raise most often when planning a new machine.
Which Injection Moulding Machine Is Used to Make Pipe Fittings?
Most fittings run on horizontal machines with hydraulic core pulls. Smaller diameters fit the E Series, mid sizes the C Series and the larger sizes in this range the H Series. Very large drainage fittings need a machine discussed separately.How Are the Cores Pulled in Elbow and Tee Moulds?
Each socket and bore is formed by a core driven by its own hydraulic cylinder or by angle pins. An elbow needs two cores, a tee three. The machine needs enough core circuits, set in the right order against mould opening and ejection.Can One Machine Run UPVC and PPR Fittings?
It can, with care. PVC and polyolefins need a thorough purge between them, and PVC wears an unprotected screw. Many plants keep separate machines for PVC and for PPR or PP to avoid contamination and long changeovers.
What Material Is Used for Pipe Fittings?
UPVC is used for cold water and drainage, CPVC for hot water lines and PPR for hot and cold plumbing. PP and ABS appear in some drainage and irrigation fittings. The screw and barrel are matched to the material.Can Pratishna Recommend a Machine for My Pipe Fitting?
Yes. Share the fitting types and diameters, material, part weights, mould dimensions, number of cavities and core pulls, and required output, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Plumbing Parts Too?
Yes. The same machines can mould pipe joints, end caps, threaded adaptors, flange adaptors and P-traps, subject to mould size and the core pulls each one needs.
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?
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