High-Speed Hammer Mill VDK: for Medium Throughput

Hammer Mill VDK

Our all-rounder

Universal mill
Ideal for medium throughput
Universal use from fine to coarse grinding
Quick and easy screen change during standstill

Recommended for

Compound feed

Pet food

Aqua feed

Wood

Fibres

Food

Alcohol

Bioethanol

Introduction Benefits Technical Data References

The Robust Mill for Medium Throughput

The high-speed hammer mill VDK is suitable for use in compound feed production, the ethanol industry, the woodworking industry and for grinding a wide range of other products. Its solid construction also makes it suitable for high mechanical loads. The maximum speed of 3600 rpm and longer beaters offer advantages in the fine grinding of pet food and fish feed with high fat contents.

Take Advantage of These Benefits

Efficient Grinding of a Wide Range of Products

Reliable Operation and Long Service Life

High Availability with Low Downtimes

High Safety of Personnel and Plant

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

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

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

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

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

Hardened impact plates

Beater changing device for quick and easy beater change (option)

Pneumatically operated inlet flap (option)

Grinding chamber temperature monitoring

Bearing temperature monitoring

Get in Touch with Our Experts

Let us know your application details and we find out the best solution for you.

Technical Data

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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Hammer Mill VDK

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In Operation

Case Studies

Aquafeed | Germany

Highest Purity of Fishmeal for Fish Feed Production

Our customer J. Müller achieves a purity level of around 95% in the production of fishmeal by using a VDK 4 hammer mill with an upstream cleaning system consisting of a drum screen and air separator.

Food | Germany

Production of Bean Flour for Pasta Production

Beans are ground into bean flour for the production of gluten-free pasta. The achieved fineness of 99 % < 500 µm is achieved with the VDK hammer mill, suction-pneumatic flour conveying and total separator with pocket filter technology.

Wood & Fibres | Sweden

Modernization of a Biomass Cogeneration Plant

Öresundskraft is investing in the modernization of its biomass power plant. Tietjen is supplying a complex system for wood pellet processing.

Food | Germany

Hammer Mills in the Production of Breadcrumbs

In BRATA KG’s latest breadcrumb plant, the company once again relies on a grinding module from Tietjen. The VDK hammer mill grinds white bread and bread roll leftovers for breadcrumb production.

Food | Uganda

Production of Banana Flour

Production of banana flour from dried bananas using the VDK hammer mill. The stainless steel mill grinds the dried bananas to a high degree of fineness.

Typical Applications

Compound Feed Production

Pet Food Production

Aqua Feed Production

Natural Fibres Processing

Bioethanol Production

Alcohol Production

Feeders for this Hammer Mill

Air Gravity Separator AGS

Separate Foreign Matter

Separation of magnetic foreign particles
Separation of heavy particles
Always in combination with TTS & TRS

Air Gravity Separator AGS AD

Separate Foreign Matter

Separation of magnetic foreign particles
Separation of heavy particles
Always in combination with TTS & TRS

Vibration Feeder R

Conveying, Dosing & Separating

Universal feeding device
Separation of magnetic foreign objects

Screw Feeder TTS and TRS

Conveying and Dosing

Bridges conveyor distances
Load-dependent product dosing
For products with low flowability

Drum Feeder DA

Dosing and Separation

For free-flowing products
Separation of magnetic foreign bodies and heavy particles
Explosion decoupling

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