How Sangrila Ply is manufactured ? ( 10 steps )



 

Ganapati Veneer & Plywood Industries is leading industries in Nepal, supplying high quality plywood and products to corporate houses, architects, designers and individuals.Our products range stands for assured quality. Being an ISO 9001:2000 certified company, every steps are taken to maintain superb quality control methods for its production. With advanced processes and sophisticated plant and machinery in place, we aim at continuously bettering our performance and consumers trust.

We have stepped into the profession of shaping , toning wood and treating wood , we have never missed the opportunity to  understand the finer nuances of this art. Being on the lookout for most special varieties of wood across Nepal has been a hobby and passion to us.

From the kitchen to the living room to the boardrooms our plywood has strengthened them all. We believe we have made significant impact on the wooden side of life. Here are some steps we follow to manufacture branded plywood :

Step-1: Cutting the logs

The large wooden logs, normally stored under water are cut into pieces according to the production requirement.
Tools/Machinery required: Large hand saw or machine saw (Saw mill).

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Step-2: Processing the logs

The pieces of the logs are then at around 70-90 degree C temperature for 12-14 hours either under hot water or in a steam chamber.
Tools/Machinery required: Steam chamber or hot water bath.
Step-3: Debarking

The bark or the thick skin around the log is removed either by hand tools or by using a debarking machine.
Tools/Machinery required: large chisel and hammer or debarking machine.

Step-4: Veneer making

Veneers are the few millimeters thick layers of wood of. The veneers can be made either by peeling or by slicing. The log is to be loaded to a peeling lathe or a slicer machine for making veneers out of it.

Step-5: Wet Clipping
The veneer then cut into pieces of required sizes by using a clipping machine. The clipping machine works like a big scissors.
Tools/Machinery required: Veneer clipping machine.
Step-5: Drying
The veneers are then dried partially by sunlight and partially by a dryer machine. Maintaining required amount of moisture in veneers is very important for producing the good quality plywood.
Tools/Machinery required: Veneer dryer, Veneer moisture meter.
Step-6: Dry Clipping
After drying again the veneers are clipped using the clipping machine. This step is required to cut the veneers in close tolerance and to remove the drying defects.
Tools/Machinery required: Veneer clipping machine.
Step-7: Resin preparations
Either liquid or the powder resins are used for making glue. Urea formaldehyde (UF) and phenyl formaldehyde (PF) are the two most common types of resins used in plywood manufacturing. In case of liquid resin, the resin is manufactured normally in house by using a resin kettle or resin plant.
Tools/Machinery required: Resin plant or kettle.
Step-7: Gluing and assembly
The correct sized veneers are then glued normally by using a gluing machine. The veneers are passed in between two rollers of the gluing machine. The rollers of the gluing machine are kept wet by the continuous supply of glue. The odd numbers of veneer layers are assembled such a way that the grain directions of the consecutive layers are perpendicular to each other.
Tools/Machinery required: Veneer gluing machine.
Step-8: Hot pressing
The assembled veneer layers are transferred inside the hot press which apply specific pressure and temperature for specified duration of time to the veneers assembly and convert it to plywood by curing the resins.

Tools/Machinery required: Hydraulic hot press

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Step-9: Trimming
The circular power saw is used for trimming the plywood boards to give it the required size.
Tools/Machinery required: Circular power saw
Step-10: Inspection, labeling and dispatching

Inspection is performed to find out the rejected and reparable pieces among the good pieces. The reparable pieces are repaired using putty and color pastes manually. Finally labeling and dispatching is done.
Tools/Machinery required: Labeling machine.

This is how typical plywood manufacturing process and machinery goes.

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