Cryogenic media-blast deflashing

AWS 20

The AWS 20 is a media-blasting machine for the cryogenic deflashing of rubber or plastic moulded parts. The very well-insulated machine cell, in combination with 2-stage dust extraction, guarantees low nitrogen consumption with effective deflashing. Energy-efficient drives and high-quality materials, good media-blasting performance and thus short batch times, as well as low space requirements, are other features of the AWS 20 blast deflashing system.

The S7-1500 controls, in combination with the button panel and barcode reader, allow for user-friendly operation of the cold deflashing system. The entry and saving or external saving of formula data records guarantee a high degree of reproducibility and security.

Sustainable Reliability

Internal granulate sifting

  • Continuous separation of dust and residual flashing from the blasting media
  • Blasting grain in the correct size and purity for effective abrasive media-blasting
  • Sustainable, reproducible media-blasting performance even in multi-shift operation

Additional cooling

  • Cooling and absorbing of moisture within the machine
  • Compensation for the air humidity which enters during the loading and unloading process
  • Minimisation of the set-up and auxiliary process times for downtimes of more than 8 hours

The standard features of the AWS 20

Processing drum
> Removable basket with selectable perforation

Flywheel
> Speed 1,000 – 10,000 rpm
> Blasting media launch speed up to 131 m/sec
> Active media-blasting angle adjustment

Controls
> Siemens S7-1500 with KP 700 Comfort button panel

Dust extraction exhaust system
> Integrated, isolated 2-stage cyclone dust extraction

Moulded part cooling
> Temperatures as low as -150 °C

Insulation
> 120 mm thick insulation cell

Granulat conveying
> Steplessly adjustable vertical and horizontal spiral conveyor

Data Management (LAN, USB)
> External protection of the formulas
> Complete batch documentation

Emptying sieve
> External vibration sieve with magnetic oscillation technology
> Changeable sieve inserts

Technical details for the AWS 20

Technical Details
  • Insulation: efficient stainless steel cryogenic cell with 120 mm thick walls, exterior powder coated in RAL9002,
    interior stainless steel
  • Access doors: left and back
  • Controls: Siemens S7-1500 with KP 700 Comfort button panel incl. barcode reader
  • Control cabinet positioning: as a unit with machines on floor palettes front right
  • Process documentation: data management via LAN and/or USB
  • Batch volumes: up to 30 litres
  • Basket volumes: 67 litres
  • Basket geometry: cylindrical with roller rails
  • Basket speed: 5 – 30 rpm
  • Flywheel speed: 1,000 – 10,000 rpm
  • Blasting media launch speed: up to 131 m/sec
  • Blasting media: 0.5 – 1.5 mm polycarbonate
  • Internal sieving: two sieve inserts (0.5 – 0.75 mm PC // 1 – 1.5 mm PC)
  • Blasting media supply: steplessly adjustable vertical and horizontal spiral conveyor
  • Feeding door: manually operated
  • Dust extraction: integrated, isolated 2-stage cyclone dust extraction with service doors
  • Seals: low-wear metal alloy / special door seal
  • Compressed air supply: not required
  • Heat output: 1,500 Watts
  • Article memory: 4,000 items
  • Temperature regulation: PID regulator down to -150 °C
  • Construction: solid base plate incl. forklift slots
  • Weight: approx. 1,500 kg
  • Dimensions: 1,900 B x 1,800 D x 2,300 H
  • Electrical connection: 400/230/24 V/50 Hz/N/PE/3Ph/32A
  • Nitrogen input: 1/2“, 4.5 bar
  • Exhaust: DN 100
Engineering drawing
Data management

Simple and secure data handling with integrated USB and LAN interfaces. Formulas can be called up simply and securely using the barcode reader.

Active media-blasting angle adjustment

The active media-blasting angle adjustment, patent pending, allows the media- blasting operating area to be adjusted automatically within the processing basket.

Processing basket

The basket can be swapped and a variety of basket perforations are therefore available. Tailored exactly to your requirements according to the moulded part sizes. Loading occurs manually using the loading aid provided through the manually operated exterior door and the two-part interior door. The basket is automatically emptied onto the emptying sieve by means of the integrated roller rails.

Emptying sieve

The external vibration sieve works with frequency-controlled modern magnet oscillation technology. This allows the supply and sieve speeds to be set optimally. As standard, the emptying sieve is single-level with a changeable sieve so you can respond to a variety of moulded parts. We can also offer customised multi-level emptying sieves.