Retsch Cross Beater Mill SK 300 up to 25mm, 2000-4000 min-1, 220-240V, 50/60 Hz, Hardened Steel

The Retsch Cross Beater Mill SK 300 Hardened Steel is a powerful and versatile milling solution designed for the batch-wise or continuous preliminary and fine size reduction of medium-hard and brittle materials. With a robust construction suited to both laboratory and industrial environments, this mill offers outstanding performance for high-volume sample processing. Operating at adjustable speeds up to 4000 min⁻¹, it can often achieve a final fineness below 100 microns in a single process.

Key Features:

• Brand: Retsch
• Material: Hardened steel (grinding chamber, rotor, beater)
• Feed Size: Up to 25 mm
• Speed: Adjustable between 2000 and 4000 min⁻¹
• Voltage/Frequency: 220–240 V, 50/60 Hz
• Application: For size reduction of cement clinker, coal, coke, glass, gypsum, and more
• Final Fineness: <100 µm depending on material and configuration
• Sieve Options: Bottom sieves with aperture sizes from 0.12 to 10 mm
• Cleaning: Fast and easy due to removable cassette, hopper, and push-fit rotor
• Dust Control: Ring filter and 5 L collecting vessel with bayonet catch
• Safety: Quick-action door lock, safety interlock, and electric brake

Function Principle:
Size reduction in the SK 300 is achieved by impact and shearing effects from the rapidly rotating cross beater. The airflow generated through the hopper supports the discharge of material, while a downstream filter system separates airborne fine particles efficiently.

Scope of Supply:
Includes Cross Beater Mill with hardened steel grinding insert, cross beater, baffle plates, filter hose, and 5 L collecting vessel.

Note: Bottom sieves and base frame must be ordered separately. Additional sieve sizes and feeder configurations available upon request.