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Cold feed type extruders are constructed with specially designed screws best suited for cold feeding. The primary components of each machine are an extruder unit, a temperature control unit, a drive motor, and a temperature control panel.

1. Ordinary temperature rubber in the form of tapes, pellets or slabs can be fed directly to the extruder, with no preheating in warming mills before the extruder.
2. A range of screws is available for a wide variety of compound and extrusion applications.
3. During the extrusion process, uniform temperature and plasticity is applied to the.rubber compound to provide greater in the shape and size of extruded components.
4. Rubber feed to the extruder can be automatic, reducing the number of operating personnel.
5. An automatic temperature control unit, with a circulating pump, controls cylinder temperature to within ±1 degree C, so the shape and size of the extruded products are uniform.

COLD FEED TYPE EXTRUDER SPECIFICATIONS

Screw Diameter	45k		60k		75k		90k		120k		150k		200k		250k
Screw L/D	10		10(12)		12		12(14)		14		16(19)		19		19
Screw Speed	94	72	94	72	72	60	66	52	50	40	40	30	30	40	24	20
Motor kw	11	7.5	22	19.5	30	22	55	45	90	75	195	150	300	370	450	370

Single screw vent type extruders have screws of an original and unique design. The primary components of each machine are an extruder unit, a temperature control unit, a drive monitor, a temperature control panel, and vacuum pump.

1. Compound can be cold fed to the feed section.
2. A single, specialty geometry screw and vacuum pump completely vent bubbles out of extruded components.
3. Depending on the type of compound, the screw can be replaced quickly when necessary.
4. Because there is minimum of revolving or connecting parts, the costs of upkeep are kept low, and the machine is easy to inspect and maintain.
5. Requires a small floor area.
6. An automatic temperature control unit, with a circulating pump, controls cylinder temperature to within ±1 degree C, so the shape and size of the extruded products are uniform.

VENT TYPE EXTRUDER SPECIFICATIONS

Screw Diameter	45V		60V		75V		90V		120V		150V
Screw L/D	16		16		16		16		19		20
Screw Speed	94	72	94	72	72	60	66	52	50	40	40	30
Motor kw	11	7.5	22	19.5	30	22	55	45	90	75	195	150

The pin type extruder incorporates a special design with 60 to 100 pins protruding from the cylinder wall toward the screw's center. These pins enhance the mixing and dispersing of the rubber as it is kneaded between the screw and the cylinder, making the pin type extruder extremely flexible as a universal extruder that is applicable to many rubber compound formulations for diverse applications.

1. Applicable to a wide range of rubber compounds.
2. Pins enhance mixing to provide high uniformity in dispersion and plasticization of material.
3. Output is 20% to 60% higher than a conventional cold feed type extruder of the same size.
4. Rubber can be extruded at relatively low temperatures.
5. The low energy consumption (WH/KG) helps keep costs down, while conserving resources.
6. System is self-cleaning.

PIN TYPE EXTRUDER SPECIFICATIONS

Screw Diameter	60P		75P		90P		120P		150P		200P		250P		300P
Screw L/D	12		14		16		16		16		19		19		14
Screw L/D	94	72	72	60	66	52	50	40	40	30	30	40	24	20	24
Motor kw	22	19.5	37	30	55	45	110	90	195	150	300	370	450	370	650
Number of pin	6 x 10		6 x 10		6 x 10		6 x 10		8 x 10		8 x 10		10 x 10		10x 10

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