Kkervit has a long tradition in producing curved plywood. We manufacture moulded plywood from beech trunk wood. It has the perfect characteristics, such as durability and extreme formability, combined with long-lasting flexibility. Curved plywood offers all the inherent advantages of the parent wood plus enhanced properties in its laminated structure. However, it can also be combined perfectly with other materials.
In our facilities we have 10 pressing machines which can handle large numbers of production as well as meet specific requirements. Through our two-shift and three-shift system we are in a position of being able to expand capacity for our clients even at short notice. Our production cycle includes both traditional as well as innovative techniques of making curved plywood.
Curved Plywood molding Technologies
Radio Frequency (RF) Technology
Kkervit has a long tradition in producing curved plywood. We manufacture moulded plywood from beech trunk wood. It has the perfect characteristics, such as durability and extreme formability, combined with long-lasting flexibility. Curved plywood offers all the inherent advantages of the parent wood plus enhanced properties in its laminated structure. However, it can also be combined perfectly with other materials.
Induction Heat Pressing (IHP) Technology
In our facilities we have 10 pressing machines which can handle large numbers of production as well as meet specific requirements. Through our two-shift and three-shift system we are in a position of being able to expand capacity for our clients even at short notice. Our production cycle includes both traditional as well as innovative techniques of making curved plywood.
UPM GRADA Technology
Grada technology revitalises the forming of wood with heat and pressure and opens up new opportunities for designs not achievable with traditional methods. Its unique forming properties enable high quality and ecological designs which are also visually appealing.
UPM Grada is wood material which can be formed with heat and pressure. This innovative technology developed by UPM shortens the form pressing Process, cuts labour costs and increases its efficiency. The thermo formable wood panels can be formed into a component easily in two steps – first the panel is heated and then formed and cooled. It is a safe material, which contains no harmful compounds. Because the material does not contain any added formaldehyde or volatile organic content it is ideal for public and private spaces.
UPM Grada has been manufactured using a new revolutionary adhesive film which makes products using this wood material strong, of high quality and impact resistant. Thanks to materials durable structure, products made of UPM Grada will make a reliable and long-lasting partner in day-to-day life. UPM Grada is an ecological choice. It is manufactured using PEFC or FSC certified raw materials and following the best practices for sustainable and responsible forestry. The material stores CO2 and the products made of the material can be safely recycled or burned at the end of their lifecycle..
Vaccum press technology is implemented in our facilities in order to add smooth and wrinkle free laminates on top of plywood panels as well as for forming composites like corian. The process is relatively simple: A vacuum is created in a vacuum bag or frame press by a vacuum pump, thus Atmospheric pressure is used as the working force. Atmospheric pressure is the actual weight of the air around us, about 14.7 pounds per square inch (PSI), this equates to 1 ton per square foot of working pressure.
The uniform pressure eliminates shifting and air pockets, creating perfectly smooth parts with consistent predictable results. Another advantage is air is drawn out of substrates, allowing deeper adhesion. This creates an even excellent bond with minimum waste of adhesives. We use this technology for the implementation of a number of task types that are listed below:
Laminated bending
Laminating and veneering of any form and shape with wood and board materials such as: bendy plywood, plywood, thick sawn veneer, MDF, etc
Bonding
Flat pressing, veneering and bonding of various materials such as: wooden board materials, composite materials, honeycomb boards, glass, etc
Coating
Coating and veneering of flat and shaped forms with a variety of materials such as: wood veneer, PVC etc.
Heating & Forming
Preheating and forming of thermoplastic materials suc as:Plastics (ABS, PMMA, PET-G, PC) and Solid Surface Materials (Corian, LG HI-MACS).
Hot forming
Vacuum hot forming and shaping of Plastics and Solid Surface Materials such as: Plexiglas, Corian, Lg Hi-Macs, UPM Grada
Advantages of Plywood
High impact resistance
Being a wood based material, plywood has the ability to accommodate the occasional short-term overload; up to twice the design load. This is useful where seismic activity or cyclonic winds can occur. This property is also effective when used as construction flooring or as concrete formwork. Plywood’s laminated structure distributes loads from impact over a larger area on the opposite face, which effectively reduces the tensile stress.
Surface dimensional stability
The cross laminated construction of plywood ensures that plywood sheets remain relatively stable under changes of temperature and moisture. This is especially important in flooring and formwork construction where moisture exposure is very likely.
Coating
With high strength and stiffness to weight ratios, plywood is very cost effective to use in structural applications such as flooring, shearwalls, formwork and webbed beams.
Panel shear
The panel shear of plywood is nearly double that of solid timber due its cross laminated structure. This makes plywood a highly effective material to use in gussets for portal frames, webs of fabricated beams and as bracing panels. Chemical resistance: Plywood does not corrode and can be used in chemical works and cooling towers as a cost-effective, durable material when preservative treated