Blog
Guides and articles from Pratishna Engineers on choosing, sizing and buying injection moulding machines in India.
What PET Products Can You Make on a 260 Ton Machine?
260 ton PET machine applications: high-cavity water preforms, heavy and jar preforms, the resin grade for each bottle, and the checks beyond clamp.
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Hot Runner Preform Moulds: What the Machine Must Provide
Hot runner preform moulds need heater zones, valve-gate air, chilled water and strong platens. What to check on the machine before the mould arrives.
Read moreThree Screw Options for PET on a 220 Ton Machine Explained
Screw options for PET on 220 t: how diameter trades shot for pressure, why residence drives acetaldehyde, and how to pick a screw for your preforms.
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Higher-Cavity Preform Moulds on a 220 Ton Machine
Higher-cavity preform moulds on 220 t: why clamp is rarely the limit, and how injection rate, barrel, tie bars and cooling set the cavity count.
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What PET Products Can You Make on a 220 Ton Machine?
220 ton PET machine applications: water, CSD, oil and jar preforms, when clamp starts to limit wide necks, PCO 1881 retooling and FSSAI rules for PET.
Read morePlanning Preform Output: Cavities, Cycle Time and Drying Capacity
Planning preform output: preforms per hour from cavities and cycle, what sets the cycle, and how to size dryer capacity, airflow and dew point.
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When a 180 Ton PET Machine Is Enough and When to Move to 220 or 260 Ton
When a 180 ton PET machine is enough and when 220 or 260 t pays off: clamp limits by cavity count, tie-bar fit, stroke, shot and running cost.
Read moreHeavy Preforms for Large-Volume Bottles on a 180 Ton Machine
Heavy preforms for large-volume bottles on a 180 t machine: shot vs barrel in PS terms, why wall thickness sets the cycle, and acetaldehyde control.
Read moreWhat PET Products Can You Make on a 180 Ton Machine?
180 ton PET machine applications: heavy and high-cavity preforms, jar preforms where clamp becomes the limit, PETG jars and FSSAI rules for PET.
Read moreControlling Haze and Acetaldehyde in PET Preforms
Haze and acetaldehyde in PET preforms: where AA comes from, why light preforms raise it, what causes white gates and unmelts, and what to check first.
Read morePET 125 Ton vs 150 Ton: Sizing by Shot Weight and Mould Size
PET 125 ton vs 150 ton: compare clamp area, convert preform shot weight to barrel volume, and check mould width against tie bars before you choose.
Read moreEdible Oil Bottle Preforms on a 125 Ton Machine
Edible oil bottle preforms on a 125 ton machine: FSSAI rules, neck and closure, wall and cycle time, and output for 1 litre and 5 litre moulds.
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