GROSS Apparatebau GmbH

Briquetting Presses GP

Disposal of shavings with high pressure

GP series briquetting presses are especially robust and handle all briquetting materials such as wood shavings, wood chips, paper, different types of cardboard, Styrofoam, straw, hay and many other homogenous materials. They are easy to maintain, convincing due to low operating cost, and can compress a great variety of materials. Therefore, the GP series is the first choice for the wood processing industry.

The material to be processed is fed into the container either manually or by way of a filter or conveyor belt. The permanent mixer and a separately controlled discharge screw-transport feed the material into the press chamber. The material is prepressed and then compressed in the main pressing procedure without the aid of binding materials. The maximum material moisture level does not exceed 18 %. The output, depending on the machine can be up to 350 kg/h. Briquettes with a diameter of 50 mm, 60 mm or 70 mm are produced. The driving force of the briquette press is an electric motor with a driving power of 7,5 kw to 11 kw.

Briquetting presses GP Genius

Briquetting presses GP Genius 2/50, 2/60, 2/70 for volume reduction and production of heating material

The GP Genius series was developed for briquetting chips and dusts especially. These high-performance, robust and high-quality machines compress homogenous material to form com-pact briquettes. Due to its highly effective hydraulic system, their wattage is extremely low considering their briquetting output. The machine is extremely silent, requires only little room and can be set up almost anywhere. With the automated material feed, no operating staff is necessary. The machines have been designed as system components and can therefore be easily customised.

Mode of Operation:
Material is fed into the hopper (holds about 1 m³) manually or with a filtering installation. The agitator continuously fills the channel of the spiral output. The conveyor then transports the material to the pre-compressor. A hydraulic fill pusher then pushes the material into the actual press chamber. The pressing tongs that are also hydraulically controlled, compress the material in connection with a specially hardened press cylinder and provide excellent briquette quality. Compression is performed without binding agents.

All models are supplied complete with hydraulic oil as well as safety switches for oil temperatures and the PLC for fully automatic operation.

GAZ 102

Shredding technology for professionals

The GAZ 102 – GAZ 252 series was designed for shredding of large material quantities. The single-shaft shredders are suitable for shredding all types of woods, and hard and tough plastics. The high-performance motors from 1 x 22 kW to 2 x 90 kW with turbo coupling provide for high throughput.

Material is fed through the hopper in front of a hydraulically operated drawer, which pushes the material load-controlled onto the turning rotor. The fed materials are shredded between the rotor knives and a fixed counterknife bar. The drawer has stripping bars that prevent material from entering between the drawer and machine housing. Material can be removed with a spiral conveyor, suction device, or a conveyor belt or chain conveyor. Once the material is shredded, the machine will automatically shut off.

GAZ 62

The robust GAZ 62 series valuable substance shredders shred materials such as wood, cardboard, plastic and many others economically and effectively. The shredders can be adjusted according to customer specific requirements for throughput volume, material to be processed, etc. The GAZ 62 series shredders are compact and designed for high performance.

Material is fed through the hopper in front of a hydraulically operated drawer, which pushes the material load-controlled onto the turning rotor. The material is shredded between the rotor knives and a fixed counterknife. The drawer has stripping bars that prevent material from entering between the drawer and machine housing. The screen hole with different perforation diameters determines the size of clippings or shavings. Produced shavings can be removed from the machine with the suction device or spiral conveyor. Once the material is shredded, the machine will automatically shut off.

GZ four-shaft shredder

Long and oversized wood waste Trouble-free shredding

GZ series four-shaft shredders are ideal to shred and recycle very long and oversized wood waste such as mature timber, long boards, pallets, packaging, and cardboard of any kind. Four-shaft shredders are mainly used in the wood processing industry.

Materials are fed through the hopper of the four-shaft shredder to the cutter. The ripping teeth of the cutting discs powerfully grab and shred the material. The clearing plates push the shredded material through the clearance between the main cutters. The material is then discharged through the screen below the cutter. Depending on the composition of the material to be shredded and the diameter of the holes in the screen that is used, the throughput rate ranges from 300 to 2,000 kg/h. Because of the shafts' extremely low rotational speed of about 25 rpm, sound level is only about 76 dB(A). The machines are equipped with automatic overload protection and a reverse switch.