Short videos from our engineers on PET bottling air, booster compressors, sizing, air leaks and air treatment. Each one links to a detailed guide if you want the full picture. New videos are added regularly; you can also follow us on YouTube.
About Colt
Colt Equipments in 30 seconds
Screw air compressors from 10 to 350 HP, PET bottling compressors, high-pressure boosters, heat exchangers and pressure vessels, made in Sonipat for more than 40 years.
Read: Colt company profile →PET bottling and blow moulding
How a PET bottle is made
Preform, heating, stretch, pre-blow and final blow: how a PET bottle takes shape in a few seconds, and why the final blow needs steady high-pressure air.
Read: PET bottling air compressors →
How compressed air runs a PET bottling line
From preform to pallet: blow moulding, air conveyors, capping, labelling, packing and the small valves and actuators that all run on compressed air.
Read: PET bottling air compressors →
High vs low pressure air in a PET plant
Why a PET plant needs two separate compressed air networks, and why high-pressure lines need rated pipes and fittings.
Read: PET bottling air compressors →
What does a booster compressor do?
A booster raises plant air to blowing pressure; a dedicated high-pressure compressor does the whole job in stages. Which one suits your line?
Read: 40 bar for PET: reciprocating or booster? →
How much air does a PET line need?
A simple four-step way to estimate your PET line's compressed air demand and match it to a compressor's rated free air delivery.
Read: PET blowing air sizing guide →
Oil and moisture in blow air
Blow air goes inside the bottle. How oil, water and dust in that air affect hygiene and bottle quality, and how to keep them out.
Read: Oil-free vs lubricated compressors →Energy saving and air treatment
A 3 mm air leak costs ₹1.5 lakh a year
At 7 bar, a 3 mm leak wastes about 4 kW non-stop. How to find leaks with soapy water and fix them.
Read: Screw compressor running cost →
The compressed air treatment chain
Compressor, receiver, dryer, filters: why clean, dry air comes from the whole chain and not from the compressor alone.
Read: Air receivers, dryers and filters →