by ep | Jul 27, 2026 | oil free air compressor
When a PET bottle blowing operation commits to oil-free compressed air technology — and in food, beverage, and pharmaceutical packaging the case for that commitment is compelling — the next specification decision is the choice of oil-free technology type. Two distinct...
by ep | Jul 27, 2026 | oil free air compressor
Wall thickness variation in PET bottles is one of the most persistent quality challenges in stretch blow molding. It affects structural integrity under drop and compression testing, causes fill-level inconsistencies in volumetric filling lines, creates labelling...
by ep | Jul 27, 2026 | oil free air compressor
The compressed air system for a high-speed rotary PET blow molding line is not a single-pressure installation. Every stretch blow molding cycle uses compressed air at two fundamentally different pressure levels for two distinct physical purposes — and supplying both...
by ep | Jul 27, 2026 | oil free air compressor
Walk through any PET bottle blowing plant that has operated for more than a decade, and the compressor room tells a familiar story: a row of reciprocating piston compressors, some dating back fifteen years or more, each serving a portion of the plant’s...
by ep | Jul 27, 2026 | oil free air compressor
Every PET bottle that reaches a consumer — whether filled with mineral water, carbonated soda, edible oil, juice, or pharmaceutical syrup — was shaped by high-pressure compressed air. The blow molding process forces heated preforms against mold walls at 20–40 bar, and...
