Products

Full Automatic LVL Production Line

(laminated veneer lumber, LVL) is a material made of thick veneer laminated and assembled along the grain direction, hot pressed and glued, and then sawed. It has the advantages of uniform structure, high strength and good dimensional stability. Requirements for the use of wood structure buildings, bridges, furniture, transportation and other fields.
LVL making procedure is same as plywood, the only difference is the veneer fiber direction during paving section. LVL main length 4,2m, 6m, 12m, etc.

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Description

Full Automatic LVL Production Line

LVL Production Technology:

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, tec. 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, thicknesswill shrink. Shrink wastage is related to wood material, moisture containing, veneer thickness. Shrink wastage is 4%-10%.

4) Veneer gluing and handling:
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) Cold and 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%

Full Automatic LVL Line Layout

Machine List & Parameters:

1	Log Debarker (LVL&PLYWOOD	4ft Spindleless Log Debarker Max. Working Length: 1400mm Blade and Roller Length: 1500mm Max. Opening: 600mm Power: 11kw+11kw+5.5kw Peeling Speed: 70m/min Diameter of Double Roller: 180mm Diameter of Single Roller: 150mm Machine Weight: 4000kg
2	Veneer Peeling Machine (LVL&PLYWOOD)	4ft spindleless veneer peeling machine Peeling Speed: 40-80m/min Max. Working Length: 1400mm Blade and roller length: 1500mm Max. Opening: 500mm Diameter of Roller: 125mm Peelilng Thickness: 0.5-4mm Power: 7.5kw*4_7.5kw(servo) +3.7kw(servo)+1.5kw Machine Weight: 6700kg
3	Core Veneer Roller Dryer	Working width:2800mm Working layer:2 Length of heating section: 2000mm12 section= 24000mm Length of cooling section: 2000mm1 section= 2000mm Total power 108kw Veneer thickness: 1.5~4.5mm Veneer initial moisture: 60% Veneer final moisture: 10±2% Drying capacity: ～2.4cbm/h Total weight: ～56,000kg
4	Forming machine (PLYWOOD)	Working length:24m Steel mesh type Huali motor Schnieder electric parts Included: Dust collector, 4kw Max cut size: 2500mm No need foundation No include: air compressor.
5	Hydraulic Lift Type Glue mixer (LVL&PLYWOOD)	15+3KW with 3 glue tank Motor:15kw Rotating speed : 480Rpm Weight 600kgs Glue bucket: 4pcs
6	4FT glue spreader (LVL&PLYWOOD)	Dia.&number of rubber roller:219mm,2pcs Lenght of rubber part: 1400mm Dia.&number of squeezing (SS covered ) roller:245mm,2pcs Surface speed:25m/min Motor power:4kw Hardness of rubber:45 degree
7	Paving Line	Mesh belt length: 25m Board receiving part: 6.3m Total length: 30.5m No fundation with pre-press Total power: 19.2KW
8	Vertical type 600T cold press machine	Frame steel plate thickness: 30mm, Up beam height: 600mm, Down beam height: 600mm, Middle beam height: 450mm, Opening: 1800mm, Cylinder: Dia. 80mm1050mm4pcs, Lifting cylinder: Dia. 80mm1050mm4pcs. High pressure pump: 7.5KW, Automatic control, Automatic feeding and outputting: 9.7KW
9	Vertical Type 6200mm 1000T 10 Layers hot press machine	Frame steel plate thickness: 30mm, Up beam height: 600mm, Down beam height: 600mm, Middle beam height: 450mm, Hot platen size: 6200142060mm11pcs,Q235 material, Layer distance: 120mm, Cylinder:2201200mm10pcs, Hydraulic pump 218.5KW, High pressure pump 1*7.5KW, Control model: PLC automatic, 6-stage step-down and moisture removal, Total power: 44.5KW
10	Automatic Feeding And Outputting System	Feeding system size: 2.156.25.5M， Feeding mode: automatic, Cylinder: Dia.80mm2400mm, Lifting power: 4KW, Board pusher motor power: 2.2KW, Belt covneyor motor power: 1.5KW, Dimensions of chain folding plate extractor：6.22.15*4M Chain lifting motor power:4KW, Belt outputting conveyor: 1.5KW, Roller outputting motor power: 2.2KW，
11	Vacuum Feeding System	Driving motor: 1.5KW, Fan: 2.2KW, 10pcs vacuum sucker
12	Hydraulic Lift Table	Max. lifting height: 1800mm Power: 3KW+2.2KW Dimension: 6M1.2M0.58M Weight:1.6Ton