The RUF SZ1 / SZ1+ briquetting system presses loose wood chips into compact RUF briquettes. The high pressure ensures a constant high quality and density. As an entrylevel model of our wood presses, the SZ1 / SZ1+ is available in a standard design with proven RUF technology for small capacities (20 – 60 kg/hour).
The name SZ stands for the German word Spannzange = collet chuck. The RUF SZ1+ presses loose wood chips into compact briquettes. The high pressure ensures constant high quality and density.
As an entry level model of our briquetting systems the SZ1+ is available in a standardized design with proven RUF technology for small capacities.
Plug-in ready at delivery
Easy operation with touch panel
Wide spectrum of additional compressible materials (for example paper and styrofoam)
Automatic feeding of briquettes to industrial combustion plants possible
Throughput rate (kg/h)
20 – 40
30 – 60
Machine size L x W x H (mm)
1330 x 1220 x 1400
1330 x 1200 x 1400
Machine weight (kg)
Briquette format diameter (mm)
Briquette height (mm)
10 – 20
10 – 20
The basic requirement for the briquetting of wood/paper on the SZ1 is a water content of <15% and a particle size of < 30 mm. Due to the absence of a precharger, the capacity is strongly influenced by the chip form.
From our experience, the capacity of the SZ1 with wood chips range from 30 kg/h to 50 kg/h, depending on the customer’s material. A definite statement on the capacity of the machine and the briquette quality is only possible after a briquetting test with original material at RUF.
Functional description SZ1 Series
Unlike our mould models and shutter models, the SZ1 does not produce single briquettes, but a briquette string.
A feeding screw conveyor transports the material into the press channel. The collet consists of two semicircular plier parts, through which the material is pressed. Compaction is achieved by the pressure of the press channel and the two plier’s parts that are firmly pressed against each other (friction force).
As soon as the press piston has reached its pressure, the upper pliers part opens and relieves the material. The briquette string is pushed out to the front.