Briquetting Presses BP

The discharge arm takes the material out from the press silo and moves it onto a spiral-conveyor. The spiral-conveyor moves the material to a spiral compressor. From there it arrives pre-compressed into the compression space of the briquetting press.

The material is compressed by an oscillatory piston within a conical pipe producing an endless cord. This cord is moved into a hydraulic press that compresses further. We offer four different types of briqetting press, each with different throughputs and briquettes diameters of (Ø 45, Ø 55, Ø 65, Ø 75 mm). Throughputs to circa 1,500 kg/h can be reached depending on the briquette quality and favoured material consistency.

The briquetting process and the material input into the press silo can be carried out automatically or manually.


The mechanical briquette presses are made out of a robust welded-steel. The eccentric drive with heavy flywheel operates energy efficient and reliable.

Areas of operation

It is well known that supplies of resources and primary energy are tight. This problem calles for recycling, environmental friendly disposal and the development of new energy sources.Systems are required to further re-use waste product streams, so that raw materials are not needlessly wasted.

CHEMA Anlagen- und Apparatebau GmbH has an appropriate solution - briquette presses that compress residual material. The resulting briquettes obtain properties which are essential for optimal thermal utilisation and can be economically re-used for further processing.

The CHEMA – briquetting system produces briquettes out of biomass (sawdust, hay, reed). The briquettes behave similarily to coal as they burn they smolder, achieving a very high level of efficiency.

Since CHEMA briquetting systems reduce the material’s volume by 10 times (wood), and up to 100 times for synthetic material, the costs for stock and transport are reduced significantly.

It is also possible to compress various kinds of dusts. However, dusts require a bigger effort to process – suction, filtration, packing, danger of explosion. As highly compressed dusts come in blocks, which are reduced in size, these can easily be used for further processing.

The briquetting systems have proved themselves in many different applications. The systems compress wood chips, sawdust, and synthetic material as well as dusts and waste of the coffee and cigarette production (just to mention a few examples).

An additional patented process is used to produce briquettes from synthetic materials. The highly improved core bonding of briquettes avoids the splintering of the material (e.g. DSD) at the cut edge. The quality of the end product is significantly increased.


To produce high-quality compressed briquettes the following requirements must be met:

  • The material requires a residual moisture below 15-18%.
  • The material should be pre-shredded to at most 15-20mm.
  • The material should be free from foreign substances such as sand, stones and metal.

CHEMA briquetting press features

The input material’s shape, density and consistency is important for throughput and the briquette quality.

Since CHEMA compression systems produce briquetts mechanically they operate without any supplementary glue or binding mixtures.

The system is equipped with easily exchangeable parts, to minimise outages causing by system lock ups.

Your advantages when using the BP

  • Volume reduction
  • Cost reduction by adding value to your wastes
  • Dust compaction which allows waste-to-energy
  • Simple strorage
  • Minimization of explosion danger
  • Minimization of transport costs

Made in Germany

All BP models at a glance

Typ BP 450 BP 550 BP 650 BP 750
Briquette Ø (mm) 45 55 65 75
Main motor (kW) 11,0 37,0 37,0 45,0
Machine weight (kg) ca. 1600 ca. 3500 ca. 3600 ca. 4000
Capacity silo (m³) 1,0 3,0 6,0 10,0
Throughput (kg/h) 100 - 250 150 - 400 300 - 700 800 - 1200