Blog
Guides and articles from Pratishna Engineers on choosing, sizing and buying injection moulding machines in India.
Important Specifications to Consider Before Buying a Hybrid Machine
Hybrid injection machine specifications to check before buying: clamp force, shot size, pressure, tie-bar space, daylight, connected load and service.
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Hybrid vs Hydraulic vs All-Electric Injection Moulding Machines
Hydraulic vs electric injection moulding, and where a hybrid fits: base load, precision, price position, upkeep and the jobs each drive suits best.
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How Does Servo-Electric Injection With a Ball Screw Work?
How a ball screw injection unit works: servo motor, belt, ball nut, encoder and load cell, and why shot weight repeats closer than on hydraulic injection.
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What Is a Hybrid Injection Moulding Machine?
Hybrid injection machine working principle: servo ball screw injection, hydraulic clamp, where it saves energy and which parts it suits.
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Applications of Special Purpose Injection Moulding Machines
Special purpose moulding applications: PVC fittings, insert-moulded electrical parts, IML and thin-wall packs, battery containers, and what each needs.
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Important Details to Share Before Specifying a Special Purpose Machine
A special purpose machine specification checklist: part, resin, mould and production details to share, and why one detail can triple the clamp you need.
Read moreSpecial Purpose vs Standard Injection Moulding Machines
Special purpose vs standard moulding machine: where each wins on output, flexibility, spares and energy, with a shuttle table cycle example worked out.
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When Does a Moulder Need a Special Purpose Machine?
When to buy a special purpose machine: the part features, cycle limits and quality signs that push a moulding job beyond a standard injection machine.
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What Is a Special Purpose Injection Moulding Machine?
What a custom-built injection moulding machine is, which systems get changed, how stroke and daylight limit standard machines, and a worked stroke example.
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Important Specifications to Consider Before Buying a PET Injection Moulding Machine
PET preform machine specifications explained: clamp per cavity, barrel window, injection and plasticising rate, mould fit and power, with a worked example.
Read moreApplications of PET Injection Moulding Machines
PET injection moulding applications from water and soft drink bottles to jars, FMCG and pharma packs, and how each changes the preform, mould and rules.
Read morePET Injection Moulding Machine vs Standard Horizontal Machine
PET vs standard injection machine: how screw, injection rate, hot runner, cooling and post-mould handling differ, and when a standard machine can run PET.
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