XTREME

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Highlights:

Lowest TCO in the industry
Highest ratio (L/T), design freedom
Totally oil free
Significantly reduced footprint
Reduced material stress due to lower injection pressure: low AA content and IV drop
In line preforms inspection: 100% camera quality control
Simultaneous production of two different preforms
Less material: 8% lighter preforms without losing any key properties
Extremely quick mold changeover (1 minute per cavity)

A new era in the production of PET preforms

XTREME is a rotary platform for manufacturing preform at high productivity and efficiency. With this revolutionary injection-compression molding system, SIPA has taken PET preform production into a new dimension. XTREME permits the highest L/t ratios in the industry, enabling you to produce preforms that are 8% lighter than even the lightest preform produced by conventional injection molding. And with a much faster mold changeover time of only 1 minute per cavity, a much lower injection pressure reducing material stress, AA levels and energy consumption, the possibility to produce two different preforms simultaneously, a 100% preform inspection capability, and with a much more compact footprint, XTREME redefines just about every boundary in the industry. Giving you almost unlimited freedom to design and produce extremely light preforms for mineral water and aseptic bottles with the lowest TCO. Extremely efficient, extremely flexible, extremely fast.

CAVITATION	SCREW (D)	MAX THROUGHPUT (KG/HOUR)	MAX MECHANICAL OUTPUT (P/HOUR)	MIN PREFORM BASE THICKNESS (mm)	MAX PREFORM WEIGHT (g)	MAX PREFORM LENGHT (mm)
96	140	1300	70,000	0.95	60	150
	120	1000	70,000	0.95	60	150
72	140	1300	57,600	0.95	60	150
	120	1000	57,600	0.95	60	150

Process steps: main features & benefits

01 PLASTIFICATION

Main features of extruder unit:

Electrically-driven screw extruder motors and motion
Pure extrusion process without shooting pot
Two extruder sizes available:

120 mm extruder (L/D 25) up to 800 Kg/h
140 mm extruder (L/D 25) up to 1,200 Kg/h

Optimization of plasticizing screw with true continuous rotation to reduce consumptions and AA levels
Possibility to use PET recycled flakes up to 50% without any modifications to standard plastification group

Main features of booster melt pump:

Increased constancy of throughput
Decrease outlet pressure of the extruder unit
Decrease RPM and temperature of the barrel with same throughput
Reduce energy consumption due to higher efficiency of the pump vs extruder
Possible to introduce melt filter for high content of recycled PET (flakes)

02 ROTARY INJECTION-COMPRESSION

Rotary molding wheel:

Modular design of the wheel and of the press module
Reduced cavity tonnage for reduced mold wear (max 2 ton)
Mold safety: intrinsic protection; each mold can remain open
Easy maintenance: each module can be fast removed (20 minutes per station)
The use of single cavity dosimeter allows the simultaneous production of 2 different preforms
Preforms exit aligned, so can be sorted in different bins

03 PREFORMS POST MOLD COOLING

Cooling with cold air at high speed on external and internal preform surface
No change over needed: self adapted grippers
Cooling time = 6 cycle time
Spiral chain equipped with high efficiency bearing: no maintenance needed
4 possible releasing points
Rejection point driven by quality camera checking (optional)

Applications

XTREME, rotary preform injection-compression systems produce a wide range of light weighted preforms with the freedom to create new and unique designs. There is almost no limitation on wall thickness, and L/t can be up to 80 - close to twice that normally possible with injection molding.