Van Aarsen - Animal Feed Hammer Mills
The GD and 2D hammer mills are designed for the animal feed industry, to grind raw materials into small particles and meal. Both the GD and 2D hammer mill series cover capacities ranging from 5 – 100 tons per hour, dependent on type of raw material, formula and required grinding structure and can be incorporated in a pre-grinding as well as a post grinding system as a complete grinding solution including pre-bin, feeder, magnet cleaner, hammer mill, discharge hopper, aspiration filter, fan and control system.
Grinding raw materials to the required structure is an essential operation in a feed mill.
Split Grinding is a new Van Aarsen solution that helps optimize the nutritional value of the feed by splitting up one batch of raw materials into two sub-batches which are separately dosed and grinded.
Split Grinding combines the best of both worlds:
- Interesting for feed mills with both a few and many recipes
- Requires a Hammer mill fitted with an automatic screen exchange
Compared to a Post Grinding batch process this leads to
- Optimization of the nutritional value of the feed
- Less energy consumption during the grinding process
- Higher line-capacity by an increased number of batches per hour
Compared to a pre-grinding set up this requires
- A lower investment, as no storage bins for pre-grinded raw materials are needed
Post grinding is the grinding of a mixture of different raw materials in a batch process.
- Post Grinding is applied in case of many recipes.
- The hammer mill requires a higher capacity than the feed mill capacity.
Pre grinding means that every raw material is ground separately and continuously. All nutrients are ground to the optimal size for the animal.
- Pre Grinding is applied in case of a few recipes/ raw materials.
- The grinding capacity of the hammer mill is equal or even less, compared to the feed mill capacity.
- Pre grinding requires more storage bins.
The GD hammer mill offers the lowest operational costs per ton feed by combining a high capacity with a customer specific production and low maintenance and energy costs. Capacities range from 20–100 tons per hour. An unique feature of Van Aarsen hammer mill is that the hammers can be rotated or replaced quickly and easily by a single person.
Automatic Screen Exchange
The automatic screen exchange on the GD hammer mills allows you to automatically change 3 different screen types. In combination with the frequency controlled motor a wide range of structure milling is made easy.
Feeding device with heavy parts separator
The feeding device above the hammer mill provides a dosed supply of raw material to the grinding chamber of the hammer mill. At the same time, possible solid foreign objects are separated from the raw material that is fed into the grinding chamber.
Reduced explosion risk
By removing metal, stones and other heavy parts from the raw material, the chance of explosions in the grinding chamber of the hammer mill is reduced.
Additional benefits
By preventing stones and heavy parts from entering the hammer mill, the lifetime of the screens will increase.
The feeding devices are compact, yet robust machines that are designed to be combined with the GD hammer mill and also the automatic screen exchange.
Range
Type HM GD: standard feeding device with automatic ferro parts separation.
Type HM GD HPS: feeding device with automatic ferro parts separation and heavy parts separator.
2D Hammer Mills
The 2D hammer mills offer optimal grinding of capacities ranging from 5 – 25 tons per hour. The grinding surface is a combination of breaker plates and screen. On the breaker plates the product particle size will be reduced and those particles will leave the hammer mill through the screen