Primary Shredders

Hammel Primary Shredders

High torque-low speed, fast ferocious shredder

Hammel primary shredder shreds everything super-fast, super-durable.

The HAMMEL Primary Shredder processes extremely difficult materials like waste wood, root stems, green waste, industrial- and bulky waste, paper rolls, tyres and car bodies, etc.

The robust construction ensures that the HAMMEL Primary Shredders are reliable for high volume reduction. It is equipped with a slow-speed 2-shaft-system. These shafts turn with a speed of maximum 46 rpm. HAMMEL Primary Shredders belongs to a class of extremely slow running shredders with a huge number of advantages.

The patented “2-shaft system”

The special, counter-rotating shafts with aggressive hooks and knives pull in the material directly loaded onto the shafts. The input material is ripped, torn and cut and discharges directly from the shafts onto the conveyor belt. When extremely difficult material like carpets and mattresses or root stems are processed, and as hydraulic end pressure is reached, the hydraulically controlled shafts switch automatically into reverse. Therefore the shafts turn backwards, and break the material again, clean the shaft from material, switch automatically again into the forward mode and the normal shredding stage can be continued without even being noticed by the operator. This function guarantees that all material was shredded before it enters the discharge conveyor belt, and rolling up of any stringy material is avoided through this special and fully automatic roll up protection.

The shafts always clean themselves. The final size of the shredded end product depends on various shaft configurations, HAMMEL can provide you with. Generally, an end product size between approximately 120 – 500 mm is achieved. With the extensive long-term experience in the wood and waste sector, the shafts have a long life span of more than thousand operating hours before refurbishing is needed.

Born in wood!

In 1984, the first HAMMEL machine for shredding root stems was developed. Since then, the requirements of the wood waste recycling market continues to increase even today. To keep up with these rigorous demands, HAMMEL's shredding technology has been continuously adapted to today's standards. HAMMEL strives to be leading primary shredder for all kind of wood in the recycling sector.

The years of experience ensures that we find the most suitable shaft configuration for every customer and needs.

Very low wear and tear, and energy consumption, as well as high performances are achieved through sophisticated engineering and perfectly matched shafts.

Contact us before you drown in waste!

At the beginning of the 90's, the HAMMEL shredder has been modified according to the demands of the waste-shredding sector. With extensive experience in processing different kinds of waste, the HAMMEL shredder was developed further, and is a quantum leap in shredding technology.

Various shaft configurations make it possible for the input materials to be shredded to the desired end product size. The HAMMEL Primary Shredders find its use in incineration plants - for fuel production and as primary shredders before sorting lines or just for volume reduction. The input material is pre-shredded to a homogeneous end product by the 2-shaft system and is therefore perfectly prepared for further applications.

The HAMMEL patented twin shafts are durable for several thousand hours of high volume 'extreme' operations.


Primary Shredders

VB 450

VB 650

VB 750

VB 850

VB 950

VB 1500

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Throughput Capacities

Fields of application

Depending on the models, the HAMMEL Primary Shredders process the following materials:


  • Car bodies

  • Aluminum (profiles and bales)

  • Engine blocks

  • Mixed scrap

  • Light metal scrap


  • Domestic waste

  • C&I waste

  • bulky waste

  • demolition waste

  • tires


  • Waste wood

  • Demolition wood

  • Root stems

  • Green waste

  • Railway sleeper

  • Pallets

  • Cable drums


  • Paper

  • Paper rolls

and much more...


  • High throughput at low wear costs

  • Low wear and tear

  • User friendly

  • Lower noise emission

  • Durable components

  • Customized construction