Plastic Metal :: Italian injection plastic presses, new and used machines for thermoplastics molding

MACHINE BASE
Exceptionally sturdy base made from electro welded steel with well sized discharge area for the moulded pieces. The specially designed structure permits use of tunnel conveyor belts which, when placed lengthwise with respect to the machine, provides an optimal operating area.

The part underneath the injection unit houses hydraulic, electric and electronic components. All parts and components are properly insulated from the structure itself and hermetically protected, in order to insure perfect cleanliness.

CLAMPING UNIT
The extremely robust mechanical structure is characterized by its five point double toggle. Movement is executed through a double-threaded ball screw controlled by a brushless type electric motor, governed by vectorial inverter.
This structure allows for highly precise movement of the mobile platen, which is supported by adjustable sliding pads in order to guarantee mould safety. Control and reliability of the system is ensured by precise adjustment of pressure and speed values.

EJECTOR
Hydraulic plate ejector of generous dimension for an easy hooking of all ejection points (Euromap SPI). It is operated by two hydraulic cylinders.

MOULDS HEIGHT ADJUSTMENT
Produced with a central crown gear operated by electric motor, it operates the 4 gears of the tie-bars. An automatic position control for mould thickness is available upon request.

INJECTION UNIT
Running on low-wear linear guides, it also allows rotation for easy screw control. The Injection unit’s movement is driven by two hydraulic cylinders, providing perfect mould’s alignment. The screw drive is operated by high efficiency liquid cooled torque motor. Its special configuration allows the overlapping with other machine movements. Rotating injection piston is hydraulically balanced without the necessity of any thrust bearings.

ACCUMULATORS
Without increasing the installed power, the accumulator system provides extremely rapid acceleration and high performance, which increase when the injected product volume decreases (performances required for moulding of thin wall products – packaging).

ACCUMULATORS
Conceived with hydraulic controls located directly on the injection and ejection actuators, it’s based on the use of accumulators with automatic recharge.
Reduced dimensions of pump and motor for the recharge of accumulators, operated by vectorial control with automatic switch-off when the required charge value is attained. Fully enclosed power pack with noise insulating panels.

LUBRIFICATION SYSTEM
Fully monitored automatic lubrication system.
A dedicated pump is also installed for lubrication of the clamping unit’s ball screw, with oil recovery. This independent system is also completely monitored.

VIDEO CONTROL
The display monitor is ergonomically positioned along side the fixed platen, and has a swivel base to ensure sufficient clearance for operations in the nozzle area.
A 10.4-inch colour screen allows the operator to display and control all process parameters.

Temperature, pressure, speed, time and position values are set, displayed and processed in real time by the industrial PC incorporated within the unit.

The system software includes a full array of graphical displays, quality control features and production-statistical functions.

A USB storage device imbedded within the system allows for virtually unlimited archiving (80,000 mould programs).

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