High-Speed Mill VDK: for Medium Throughput

The classic for medium throughputs

ROBUST MACHINE FOR USE IN ULTRA-FINE GRINDING

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

Your Advantages

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