Cryogenic media-blast deflashing

AWS 40

The AWS 40 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. Loading of the LN2 deflashing system occurs fully automatically via a motor-operated door. Furthermore, the AWS 40 features energy-efficient drives, high-quality materials, great media-blasting performance and thus low batch times, as well as low space requirements.

The S7-1500 controls, in combination with the button panel and barcode reader, allow for user-friendly operation of the nitrogen 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 40

Processing drum
> Removable basket with selectable perforation

Flywheel
> Speed 1,000 – 10,000 rpm
> Blasting media launch speed up to 157 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 sieve with vibration motor
> Changeable sieve inserts

Technical details for the AWS 40

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 right
  • Controls: Siemens S7-1500 with KP 700 Comfort button panel incl. barcode reader
  • Control cabinet positioning: as a unit with machines on floor palettes back right
  • Process documentation: data management via LAN and/or USB
  • Batch volumes: up to 60 litres
  • Basket volumes: 150 litres
  • Basket geometry: cylindrical with roller rails
  • Basket speed: 5 – 40 rpm
  • Flywheel speed: 1,000 – 10,000 rpm
  • Blasting media launch speed: up to 157 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
  • Loading door: operated manually or automatically by an electric motor
  • Loading: swivelling conveyor belt
  • 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: 1,700 Watts
  • Article memory: 4,000 items
  • Temperature regulation: PID regulator down to -150 °C
  • Construction: solid base plate incl. forklift slots
  • Weight: approx. 4,318 kg
  • Dimensions: 2,500 B x 3,000 D x 2,800 H
  • Electrical connection: 400/230/24 V/50 Hz/N/PE/3Ph/50A
  • Nitrogen input: 1/2“, 4.5 bar
  • Exhaust: DN 100
Engineering drawing

AWS 40 with fully automated loading door

The motor-operated automatic loading door, in combination with the light gate provided, quickly moves between open and closed. It can consequently reduce set-up times in semi-automatic operation.

AWS 40 with fully automated loading door and loading

Fully automated operation of the machine can be implemented here. The moulded parts to be media-blasted are automatically fed into the machine via a conveyor belt system. Emptying after the end of the batch and refilling then occurs automatically. This can also be combined with upstream and downstream conveyor technology through to batch tracking by means of barcodes or RFID technology. In combination with the safety technology supplied, we naturally comply with all of the safety regulations here.

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 or automatically through the fully automated loading 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 vibration motor 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.