50000cbm Particle Board Production Line Panel 2440 x 1220 mm
What is PB ?
Particle board – also known as particleboard, low-density
fibreboard (LDF), and chipboard – is an engineered wood product
manufactured from wood chips, sawmill shavings, or even sawdust,
and a synthetic resin or other suitable binder, which is pressed
and extruded. Oriented strand board, also known as flakeboard,
waferboard, or chipboard, is similar but uses machined wood flakes
offering more strength. All of these are composite materials that
belong to the spectrum of fiberboard products.
Particle board is cheaper, denser and more uniform than
conventional wood and plywood and is substituted for them when cost
is more important than strength and appearance. Particleboard can
be made more appealing by painting or the use of wood veneers on
visible surfaces. Though it is more dense than conventional wood,
it is the lightest and weakest type of fiberboard, except for
insulation board. Medium-density fibreboard and hardboard, also
called high-density fiberboard, are stronger and denser than
particleboard. Different grades of particleboard have different
densities, with higher density connoting greater strength and
greater resistance to failure of screw fasteners.
A significant disadvantage of particleboard is its susceptibility
to expansion and discoloration from moisture absorption,
particularly when it is not covered with paint or another sealer.
Therefore, it is rarely used outdoors or in places where there are
high levels of moisture, except in bathrooms, kitchens and
laundries, where it is commonly used as an underlayment shielded
beneath a moisture resistant continuous sheet of vinyl flooring.
In dry environments, veneered particleboard is preferred over
veneered plywood because of its stability, lower cost, and
Particleboard or chipboard is manufactured by mixing wood particles
or flakes together with a resin and forming the mixture into a
sheet. The raw material is fed into a disc chipper with between
four and sixteen radially arranged blades. The chips from disk
chippers are more uniform in shape and size than from other types
of wood chippers. The particles are then dried, and any oversized
or undersized particles are screened out.
Resin is then sprayed as a fine mist onto the particles. Several
types of resins are used. Amino-formaldehyde based resins are the
best performing based on cost and ease of use. Urea Melamine resins
offer water resistance with more Melamine offering higher
resistance. It is typically used in external applications, with the
coloured resin darkening the panel. To further enhance the panel
properties, resorcinol resins can be mixed with phenolic resins,
but that is more often used with marine plywood applications.
Panel production involves other chemicals including wax, dyes,
wetting agents and release agents, to aid processing or make the
final product water resistant, fireproof, or insect proof.
After the particles pass through a mist of resin sufficient to coat
all surfaces, they are layered into a continuous carpet. This
'carpet' is then separated into discrete, rectangular 'blankets'
which will be compacted in a cold press. A scale weighs the flakes,
and they are distributed by rotating rakes. In graded-density
particleboard, the flakes are spread by an air jet that throws
finer particles further than coarse ones. Two such jets, reversed,
allow the particles to build up from fine to coarse and back to
The formed sheets are cold-compressed to reduce thickness and make
them easier to transport. Later, they are compressed again, under
pressures between 2 and 3 megapascals (290 and 440 psi) and
temperatures between 140 and 220 °C (284 and 428 °F) to set and
harden the glue. The entire process is controlled to ensure the
correct size, density and consistency of the board.
The boards are then cooled, trimmed and sanded. They can then be
sold as raw board or surface improved through the addition of a
wood veneer or laminate surface.
(4 ft, 8 ft, 12 ft)
250000 Cubic Meters
If you are interested, do not hesitate to contact me.