Spiral Jet Mill 50 AS


Product Description

Ideal for the ultrafine size reduction on a laboratory scale of dry materials up to Mohs’ hardness 3 and powder fineness of 5 µm to 40 µm. Suitable for high-grade pharmaceuticals and fine-grade chemicals.

The special grinding chamber geometry results in steep particle size distributions with sharp top-size limitation. This cost effective mill has a range of features including:

  • Fineness values of d97 = 5 to 30 µm.
  • Suitable for mini batches from 3 to 100 g (50 AS)
  • Can be sterilised in an autoclave due to lack of electric components
  • Compact, smooth monobloc design, crack- and crevice-free with no dead spaces
  • Minimal product loss, i.e. optimal yield
  • Surface finish Ra = 0.8 µm or better
  • Small and easy to handle – ideal for set-up in a laboratory fume hood
  • The standard design requires only compressed air and no electric power
  • Different nozzle and grinding chamber geometries possible
  • Easily dismantled and cleaned without tools.


  • Stainless steel filter element
  • Stainless steel product container
  • Feed metering system
  • Hermetically sealed system with glove box (OEL < 1 µg / m³)

Please contact for more details:


+44 (0) 1928 755100