Extruder

SSMECH extruder design is COST EFFECTIVE and productive to process LDPE/LLDPE/HM –   HDPE and equipped with –

• Robust steel structured, heavy duty helical gear box with proven thrust bearing rated for high efficiency with a cooling coil to prevent excess heat.
• Gas nitrided screws and barrel with trouble free runs, longer life wear resistance grooved feed barrel, screw is machined to very close tolerances, super finished to ensure timely and uniform melting of the polymer.
• Barrel covered by bend heaters for excellent thermal stability, divided into suitable nos. of temperature zones with thermocouples.
• Efficient cooling arrangement through blowers is provided to maintain the temperature.
• A heavy guage sheet metal hopper with side glass, slide gate and material dumping chute on the feed section of the barrel.

* DC Motor thyristor control or AC motor frequency control are optionally available.

• Oscillating die head, a die and a die ring is made of special alloy steel and machined to very close tolerance, super finished to mirror polish and hard chrome plated for better thickness control.
• Die is spiral mandrel type, center feed die to give uniform flow equally distributed, streak free film for excellent quality.
• Die lip gap is adjustable by way of high tensile spacing bolts.
• Covered with bend heaters in required no. of zones with thermocouples.

• Manual cassette type screen changer is provided between the extruder and the die adaptors. The screen changer is made of high tensile alloy steel, hardened and ground to avoid any distortion and subsequent melt leakage. These are easy to operate manually.

• High efficiency aluminium cast dual lip air cooling ring for the cooling of the film bubble mounted on the die cart.
• A circular casing with many air entries and circular ceramic inserts as an air guide for air impinging on the film bubble.
• Adjustable cooling ring is designed to give evenly distributed voluminous airflow at low velocity.
• Separate DC drive blower with free flow mounting and a damper wall to regulate the air flow.

• Fabricated from heavy-duty steel sections and sheets, houses with nip roller assembly, flattening board etc.
• Nip roller assembly is consisting of one rubber coated roller and one ebonite roller, slided by manually and is driven by a suitably rated thyriestorized DC motor through reduction gear box.
• Collapsing board sub assembly is mounted ganging on the nip roller assembly

• Easy to operate, process control PID panel for the plant is made from steel sections and MS sheet with necessary electricals inputs and out going connections in addition to – temperature controllers and thermocouples, actuators for blower, compressor, water pump, main motors etc with necessary fuses, connectors, relays, voltmeters, ammeters etc., three pulse thyriestor drives for nip take-up DC motor.
• Using international brands of pneumatic/ electrical/mechanical inputs which complies fully with EEC safety regulations.

• Winders are available in different versions, from manual to fully automatic types and for varying line speeds, larger dia, chrome rollers, bowed rollers, centre and multiple stations.

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