After pressing, the surface of the components is unsightly due to soiling, adhesive residues, protruding wood and press marks. Planing or sanding creates a uniform and even surface and determines the thickness or thickness and width.
Calibration of glulam
After the adhesive has cured, the raw beam is planed and chamfered. Stock bars are processed from all sides in a four-sided planer. This ensures right angles and defined dimensions. For special parts, such as gable roof trusses, only the wide top and bottom sides are planed in a wide planing machine, which produces parallel surfaces and a defined thickness. In this case, the narrow sides are later processed in the framing process with portable machines.
Calibration of cross laminated timber
The CLT board must be brought to a uniform thickness. With building components, which are intended for use in the visible area, special attention is paid to the surface quality. For calibration, a wide planing machine or a wide belt sander is required, which can take up the width of the CLT element.
Wide planing machine
Planing is the fastest method of removing impurities from the surface. It also allows the greatest thickness removal and ensures a uniform thickness of the element.
Wide belt sanding machine
The finest surface, for example for the visible area, is achieved with wide belt sanding machines.
Parquet sanding machine
Instead of a large wide planer or wide belt sanding machine, simple parquet sanding machines are used alternatively for large CLT elements, in order to clean the surface after the pressing process. However, a uniform thickness cannot be guaranteed with this procedure.