COOWIN GROUP is a manufacturer of wood-plastic composite (WPC) products located in Qingdao, China. The WPC production process involves mixing wood flour and plastic materials, granulating the mixture, extruding it to form profiles, and surface treating and packaging the finished products. Quality testing is conducted throughout the process to ensure strength, durability and safety of the WPC boards and panels. COOWIN GROUP produces WPC flooring and wall cladding panels for commercial and residential applications.

1. WPC board processing process
Wood flour and plastic transformation
COOWIN GROUP
COOWINGROUP(QINGDAO BAREFOOT CO.,LTD)
Chengyang District,QingdaoCity,Shandong Province,
China. 266108
1st Quality ＆ Service is Our Life
I. SWPC- Decking floor
II. SWPC-Wall Cladding ＆ Panel

2. wpc forming step
• wpc profile production of raw materials
• Production Equipment Introduction
• Production processes
• Quality Process
• Packaging process
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

3. Introduction wpc production of raw materials
wpc available raw materials used in plastics and waste wood waste,
forestry, straw and other plant fiber as the base material does not
contain any harmful ingredients plus, and recyclable, after processing
factories, producing wood products made of special plastic and wood
flour very green; using coupling agents as surface modifying agents to
improve the compatibility of the inorganic filler, inorganic fiber and the
matrix resin is, but also can improve the interface between the polymer
and the condition of the wood meal.
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

4. Production Equipment Introduction
• Used by the machine has mixer, granulator, extrusion machines,
sanding machines, embossing machines, napping machines.
Mixer Granulator Extruder
Sander machine Embossing machine Picking Machine
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

5. Production processes
Mixing process
• Plastic, coupling agents, wood flour by a certain percentage for
quantity, mixed together.
Poured into the hopper
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

6. Mixing process
• By mixer, stir the raw material.
Distribution materials
proportionally.
Transporting raw materials to the mixer
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

7. Granulation process
• The raw material to be blender stir the raw material input granulator,
granulating machine high temperature heating, dehydration, cooling and
a series of processes, the raw materials processed into wood particles,
which is the wood products manufacturing direct materials .
Dehydration temperature treatment
Bagging Particle
Granulator
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

8. Extrusion process
• The particles made good input extruder heated to high temperatures,
it becomes cozy state, through wood abrasive extrusion.
(Material by shearing action of the screw and the outer heat in the extruder, the
average of the plasticizing extruder head into the abrasive, the material is given
a certain shape in abrasive in a row and further away from the plasticizing
extruder)
Machine feeding (particle) Water cooling after extrusion
Granulator
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

9. Surface treatment
• According to customer needs in order to determine the surface
properties of wood products (sanding, embossing, nap)
Before embossing After embossing
Picking ago After nap
Sander machine
Embossing machine
Picking Machine
Before embossing After scrub
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

10. Inspection process
• Upon completion of processing of wood products go through rigorous
testing to finally put on the market, mainly the detection of flexural strength
testing, thermal testing, water thickness swelling test, formaldehyde
emission testing, dimensional stability test, heavy metals testing.
Flexural strength test Heat detection Water thickness testing
Formaldehyde emission detection Dimensional stability test Heavy metals testing
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

11. Packaging process
• The wood panels neatly wrapped in sealed cartons code together
with the real, with stick-like pad below, the first bag tile shop in the
following, and then wrapped carton good wood board placed on the
bag, the bottom and side wrap, then a wrap bag tile on top, add
some fixed angle tied with rope solid.
1） 2） 3）
4） 5） 6）
Tel:+86 532 6773 1461 Fax: +86 532 6773 1463 www.coowingroup.com

12. COOWIN GROUP
COOWINGROUP(QINGDAO BAREFOOT CO.,LTD)
Chengyang District,QingdaoCity,Shandong Province,
China. 266108
1st Quality ＆ Service is Our Life
I. SWPC- Decking floor
II. SWPC-Wall Cladding ＆ Panel
www.coowingroup.com
Tel: +86 532 6773 1461 24-hours hotline: 0086 189 5424 8234
Fax: +86 532 6773 1463
Email: info@coowingroup.com barefoot@coowin-group.com