Vacurema

Inline Application:

For the direct route from PET waste (bottle flake, virgin/flake blends, inhouse sheet waste, …) back to PET sheet, or fibre Erema successfully realises “inline” processing by placing the die right behind the VACUREMA extrusion system to make thermoforming sheet, spun fibres or other products; without the detours of prior repelletising, predrying and external pre-crystallisation. This reduces production costs and logistics – and decisively increases the value added to the product produced.

The upstream process:
Material is fed into the plant automatically (via silo and conveyor screw). It passes a vacuum slide into the reactor. In the reactor the material fed in is mixed, heated, dried and crystallised at the same time in one working step. Thanks to an appropriate dwell time at high vacuum and high temperature, residual moisture is removed very efficiently and quickly. This is essential for minimal IV loss. In particular no external predrying is necessary. In addition to this, rotating tools provide the force for efficient and continuous filling of the tangentially and directly connected single screw extruder.
The extruder screw takes the material, plastifies, homogenises and degasses it and directs it to a downstream large area fine mesh filter system with integrated automatic self cleaning system.
The downstream process for sheet production
… consists of e.g. a melt pump, manual die, 3-roll-stack, gauging system, antiblock, film accumulator, edge trimming station, edge trimming granulator, turret winder (supplied for example by Erema's partner SML).

In short ... and this may be very interesting to you: Sheet extrusion by using the VACUREMA extrusion systems means/is: Very high flexibility regarding different input material and mixtures of materials Insensitive to moisture variations of input material Insensitive to solid contamination (aluminium, wood, etc.)

Excellent self cleaning filter system for processing of post consumer flakes – stable and proven! No melt pump required before filter system

Minimal production costs

Colour dosing possible