WEHRHAHN plants (equipment)

Individually designed to meet your requirements.

Wehrhahn supplies plants with capacities from
2 - 20 t/h. The fibre cement production process has continuously been further developed to reduce
material and energy consumption figures. Process related cut-off materials and rejects
are immediately recycled in the process. Surplus water runs through a treatment plant and
returns into the production process.

For the production of the large variety of sheets, two technologies have proven to be suitable:

Air cured (CC) fibre cement sheets are perfect for roofing products and all applications
where the sheets are directly exposed to harsh weather conditions. Autoclaved (CCA)
sheets are the choice for façades, cladding and all interior applications.

•    CC = Cellulose Cement Sheets
     CC sheets are manufactured from cement and fillers. A blend
     of virgin cellulose and synthetic fibres such as PVA or PAN are
     used as fibre reinforcement.

•    CCA = Cellulose Cement Autoclaved Sheets
     CCA sheets are manufactured from cement, finely ground
     silica sand and some additives.
     Virgin cellulose is used as fibre reinforcement.

Compressed sheets
CC and CCA sheets can be compressed in a single sheet or stack press. Pressing increases the sheet density and strength. The sheet resistance towards freeze/thaw conditions is enhanced. Pressing provides a very smooth surface finish.

Which technology for which product?

CC sheets for	CCA sheets for
Roofing (corrugated or flat)	Lap siding (with timber pattern, wood grain or smooth)
Façades	Façades
Fencing	Fencing
-	External base for plaster
-	All internal applications

Plant capacity range

Market	Capacities t/hour	Number of sheeting machine cylinders	Sheeting machine width
Small	2 - 3	2	single width
Medium	8 - 10	4 - 6	single width
Large	up to 20	5	double width

Note: Other capacities upon request.

WEHRHAHN leading in autoclave technology
WEHRHAHN is the global leader with superior technology to manufacture machines for
the production of autoclaved calcium-silicate products, such as fibre-cement sheets,
aerated concrete blocks and panels, insulation boards, etc.
Sand grinding, sand slurry dosing as well as autoclaves, automatic pressure control and
automatic condensate discharge are equally vital parts of Wehrhahn‘s know-how.