Plywood is redefining the use of wood in construction building, furniture and decorative of other use of wood at home.
It is because plywood is durable, lightweight cost-efficient, and versatile. With plywood, you can easily carve into a range of designs. So, plywood in the world is a great alternative to wood.
What’s the processing for making plywood?
The processing procedure for plywood making line:
Plywood production line
Complete plywood production line consists of log debarker,rotary peeling machine, veneer dryer, glue mixer,glue spreader,plywood forming machine, cold press,hot press,automatic edge saw, sanding machine, oil boiler, knife grinder, glue making machine, etc.
Processing technology of plywood production line
In the producing process, log cutting, peeling, dry, handling, hot press, edge trimming, sanding affect the wastage. The wastage is remains of processing (materialize) and shrinking (immateriality). Wood wastage is related to the material, specification of log, equipment capability, technology and production specification.
1) Log cutting:
Usually import log length is more than 6 meters. Cutting according to the technology required length and quality. The cutting length should be product length add remains. For example, product is 1220mm*2440mm, cutting length usually be 2600mm or 1300mm. log length, camber and demerit affect plywood output directly. Remains are small wood pieces, truncations, sawdust, etc. Log cutting wastage ratio is 3%-10%.
2) Veneer peeling:
Peeling is the most popular plywood producing process. Back veneer thickness is about 0.6mm, core veneer and centre veneer thickness is about 1.8mm.
3) Drying:
Veneer is moist. it should be dried according to the technology requirement. After drying, it will shrink. Dimension will become smaller. Veneer length, width, thickness will shrink. Shrink wastage is related to wood material, moisture containing, veneer thickness. Shrink wastage is 4%-10%.
4) Veneer handling forming and lay up:
Handling include cutting, putting veneer together and mending. Cut zonal veneer into specification veneer or proper size which can be put together. Narrow zonal veneer can be put together into one veneer. Veneer with demerit can be mended to be qualified. Wastage in this part related to log material, peeled veneer quality, dried quality, and worker operation skill. Wastage ratio is 4%-16%. Import veneer processing plywood wastage ratio is 2%-11%.
5) Hot press:
Veneer be glued and stacked, then glue together under set temperature and pressure by hot press. As veneer temperature and moisture containing changes, veneer will shrink. Shrink wastage is related to temperature, pressure, hot press time, wood material, moisture containing, wastage ratio is 3%-8%
6) Edge trimming:
Trimming the edge of the plywood flank from hot press to qualified plywood board. Remains related to process remains and product dimension. Production is bigger, wastage is smaller. Wastage ratio is 6%-9%
7) Sanding:
Sanding plywood surface to make it good. Wastage is powder. Veneer quality is good, sanding is less. Wastage ratio is 2%-6%
8) Warehousing:
Plywood is packing in palletize or in bulk.
What is the cost of a plywood plant？
We sinoeuro will give you a detailed list of a plywood manufacturing machinery at your budget.
