Injection Moulding Machine for Micro-Sprinklers and Micro-Jets
Micro-sprinklers and micro-jets are made on small horizontal injection moulding machines in multi-cavity moulds, using PP for bodies and stakes and POM for spinners. Machine size comes from cavity count and total shot weight, since each part weighs little. Orifice accuracy matters most, as a small change in the nozzle bore changes flow and spray pattern.
For micro-sprinklers, selection is about small, repeatable shots, balanced filling of many cavities and clean venting for POM rotors. Pratishna Engineers supplies horizontal injection moulding machines for micro-sprinkler production and can recommend a configuration once it sees your moulds and output targets.
Moulding Micro-Sprinklers?
Share your micro-sprinkler parts, flow rates, materials and cavity plan, and Pratishna Engineers will recommend a suitable machine.
Machine Requirements for Micro-Sprinkler / Micro-Jet Moulding
Micro-sprinklers are tiny parts where small moulding errors show up directly in the field as uneven watering:
- Fine core pins for orifices, without bending or flash
- Small, repeatable shot weight for light parts
- Even wall on spinners so rotors run balanced
- Good venting and controlled melt temperature for POM
- Gate vestige kept off spray and bearing faces
- Clean colour change for colour-coded flow rates
Recommended Machine for Micro-Sprinklers / Micro-Jets
Micro-sprinkler moulds are compact with light shots, so the E Series (75-180 T) suits nozzle, spinner, bridge and stake tools. Very high-cavity moulds or one-piece designs with long stakes and wider tools may need the C Series (140-320 T) for platen space and injection capacity.
Not Sure Which Machine You Need?
Share your cavity count and part weights to size the machine correctly.
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
Common questions about moulding micro irrigation spray parts.
Which Injection Moulding Machine Is Used to Make Micro-Sprinklers?
The E Series fits the usual micro-sprinkler and micro-jet tools. The C Series is considered only when cavity count or mould width goes beyond what the smaller platen and injection unit can carry.How Is the Small Nozzle Orifice Held Accurately?
A hardened core pin forms the orifice. Gate away from the pin so melt does not push it sideways, and check pins for wear, because a worn or bent pin changes the flow rate.Why Do Micro-Sprinkler Spinners Wobble?
An unbalanced spinner usually has uneven wall thickness, a large gate stub or short shots on one vane. Balanced cavity fill and clean degating keep the rotor running true.
Can Micro-Sprinklers Be Moulded as One Piece?
Simple micro-jets are often one-piece PP mouldings. Rotating types use a separate POM spinner. One-piece designs reduce assembly but may need side actions for the bridge and nozzle.Can Pratishna Recommend a Machine for My Micro-Sprinkler / Micro-Jet?
Yes. Share drawings or samples, the material for each part, part weights, mould size, cavities and your output target, and Pratishna Engineers will recommend a machine.Does the Machine Suit Other Micro Irrigation Parts Too?
Yes. Similar machines can produce drip emitters, drip takeoffs, barb connectors and drip line end caps.
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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