The robust hammer mill | for medium throughput | screen change during standstill

High-speed mill VDK

High speed hammer mill VDK: Our allrounder

High-speed mill VDK

The robust hammer mill | for medium throughput | screen change during standstill

The classic for medium throughputs

ROBUST MACHINE FOR USE IN ULTRA-FINE GRINDING
Weizen- und Saegespaehne

The Hammer Mill VDK is designed for fine grinding in pet food and aqua feed production, as well as for coarse grinding, in the feed-milling, ethanol and wood industries. Specifically designed for efficient grinding for challenging recipes and products: The special 6-axis rotor design plus optimized beater configuration in combination with high beater tip speed guarantees maximum material contact for the efficient production of the finest feed as well as coarser products.

 

Our High-speed mill VDK
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VDK Prallzone VDK Schlägerwechselvorrichtung VDK Umlenkung der Einlaufklappe VDK Mahlkammertemperaturüberwachung VDK Lagertemperatur

Efficient Grinding of a Wide Range of Products

  • Optimised impact zone with hardened impact plates on both sides of the inlet
  • Universal use from fine to coarse grinding possible
  • Rotor design also suitable for large pieces of material that are difficult to grind
  • Suitable for the use of all common screen sizes
  • Variable grist spectrum by adjusting the beater circumferential speed (when using a frequency converter), the screen perforation and the beater configuration

Reliable Operation and Long Service Life

  • Robust welded steel construction for continuous industrial operation (24/7)
  • Grinding chamber equipped with wear elements to protect the housing, easy to change
  • Durable, optimised rotor design, dynamically balanced, operation in both directions of rotation
  • To protect the screens: foreign body catch trap for impurities inside the grinding chamber

High Availability with Low Downtimes

  • Quick and easy change of beaters due to beater changing device (option)
  • Rotor with short run-down time < 6 min without brake
  • Wide-opening doors allow easy and quick access to the machine interior
  • 2-part screen segments without frame, easy and quick to change segment by segment

High Safety of Personnel and Plant

  • Standstill monitoring with door safety device
  • Pressure shock resistant and flameproof design (0.4 bar)
  • ATEX design according to zone 21 (II 2 D) inside and zone 22 (II 3 D) outside optionally possible

Technical Data

Technical details
  • Robust welded steel construction, symmetrical housing for operation in both directions of rotation.
  • Grinding chamber equipped with wear elements to protect the housing walls, easy to replace
  • Armored inlet flap with position switch for change of direction of rotation
  • Optimized impact zone with armored impact plates on both sides of the inlet for efficient size reduction
  • Debris trap for contaminants inside the grinding chamber as screen protection
  • Durable, optimized rotor design, dynamically balanced, equipped with 6 mm beaters
  • Beaters easy and quick to turn and change with special changing device
  • Wide opening doors, easy access to the grinding chamber and for changing the sieves and beaters
  • 2-part sieve without frame, easy and quick to change segment by segment
  • Tested and certified in pressure shock resistant and flameproof design (0.4 bar)
  • Variable grain spectrum via variable beater circumferential speed (when using a frequency converter),
  • screen perforation and beater configuration; depending on requirements
Machine types
VDK 4 VDK 5 VDK 7 VDK 9 VDK 13
Grinding chamber diameter (mm) 680 mm 680 mm 680 mm 680 mm 680 mm
Screen width (mm) 400 mm 520 mm 760 mm 1000 mm 1240 mm
Grinding chamber area (m²) 0.62 m² 0.80 m² 1.18 m² 1.54 m² 1.90 m²
Dimensions and weight
Length* x width x height (approx. mm) 2010 x 1220 x 1195 mm 2210 x 1220 x 1195mm 2610 x 1220 x 1195 mm 3010 x 1220 x 1195 mm 3250 x 1220 x 1195 mm
Weight without motor (approx. kg) 1350 kg 1400 kg 1550 kg 1800 kg 2000 kg
Drive
Motor size (kW) 30 – 75 kW 75 – 110 kW 110 – 160 kW 132 – 200 kW 160 – 250 kW
Speed 50 Hz/60 Hz (rpm) 1500/1800 1500/1800 1500/1800 1500/1800 1500/1800
Speed with frequency converter 30-60 Hz (rpm) 1800 – 3600 1800 – 3600 1800 – 3600 1800 – 3600 1800 – 3600

* Depending on the motor size Measuring surface sound pressure level < 90 dB (A) (under load)

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