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The data below provides information on the two most common WWCB plant types as provided by Eltomation, which are:
A. Expandable WWCB Plant with a capacity of 165 m3/shift.
B. Fully Automated Phase IV WWCB / EltoBoard Plant with a capacity of 165 / 38 m3/shift.
Both Plant types are provided with the ELTOMATIC Rotating Wood Wool Machine, which allows the production of high-quality boards at high capacity.
Other plant types are optionally avaialble.
The following board dimensions apply:
| Length: | 2400 / 2440 mm (8'), when so required up to 3050 mm (10') |
| Width: | 600 / 610 mm (2') |
| Thickness: | 15 - 100 mm for WWCB |
| (8 - 25 mm for EltoBoard) |
The max. density of WWCB (dry) ranges, in accordance with European Norm EN 13168 (formerly DIN 1101), from approx. 360 up to 570 kg/m³.
The density of EltoBoard (dry) is approx. 1100 kg/m³.
Other densities may apply, subject to Client's requirements and applications.
The Phase IV WWCB / EB Plant can produce various board types, which include:
The Phase IV WWCB Plant also allows the production of EltoBoard, by having the EltoBoard Press included in the Plant.
Optionally, the Phase IV Plant can be provided with a full scope of additional "Finishing" Equipment,
which consists of an Automatic Board Dryer and Thickness Calibrating Equipment. Optionally a Painting Line can be added to the line.
The Expandable WWCB Plant allows the production of Standard WWCB and Acoustic (fine-fibre) WWCB only.
Optionally, equipment for the production of Composite WWCB or Reinforced Roofing WWCB can be added.
To reduce the initial investment, the Expandable WWCB Plant is designed for the manual (de)stacking of boards handling and of wood blocks.
These operations can be fully automated at a later stage.
Table A: Plant capacity for WWCB
Phase IV WWCB/EB Plant and Expandable WWCB Plant, 3-shift operation.
Board dimensions of 2400 x 600 mm
| Board thickness in mm | m² per day (finished boards) | m³ per day (finished boards) | No. of boards per day |
| 15 | 12.335 | 185 | 8.565 |
| 25 | 12.335 | 310 | 8.565 |
| 35 | 12.335 | 430 | 8.565 |
| 50 | 9.330 | 465 | 6.480 |
| 75 | 6.460 | 485 | 4.485 |
| 100 | 5.075 | 510 | 3.525 |
Table B: Plant capacity for EltoBoard
Phase IV WWCB/EB Plant, 3-shift operation
Board dimensions of 2400 x 600 mm.
| Board thickness in mm | m² per day (finished boards) | m³ per day (finished boards) | No. of boards per day |
| 8 | 10.620 | 85 | 7.370 |
| 10 | 9.555 | 95 | 6.640 |
| 12 | 9.205 | 110 | 6.390 |
| 15 | 7.535 | 115 | 5.230 |
| 19 | 5.950 | 115 | 4.130 |
| 25 | 4.520 | 115 | 3.140 |
The raw material Wood for WWCB production consists of small-diameter soft wood, mainly Pine, Spruce or optionally Poplar.
For example wood from forest thinnings is suitable. Cement is common OPC (Portland Cement, such as CEM I 52,5 R).
In addition Water and a Salt Solution such as Sodium Silicate ("Waterglass") is used.
Raw material consumption, based on 1-shift production for boards of 2400 x 600 mm, 50 mm thickness are approx. as follows:
| Raw material: | Consumption per 1 shift |
| Wood wool | 20 ton |
| Cement | 34 ton |
| Water | 22 m³ |
| Salt solution | 1,4 ton |
The following labor requirements apply, including labor for maintenance, warehousing, cleaning, etc. Plant management is to the discretion of Client.
| Expandable WWCB Plant | Phase IV Plant | |
| Number of personnel per shift: | 23 | 19 |
Based on a full production capacity, the total installed electrical power and electrical power consumption (incl. dust extraction, compressor, etc.) are approx.:
| Expandable WWCB Plant | Phase IV Plant | |
| Installed Electrical Power: | approx. 700 kVA | approx. 1000 kVA |
| Electrical Power Consumption: | approx. 450 kW | approx. 700 kW |
The (optional) Board Dryer is gas (or steam) heated. Alternatively, the dryer can be heated by means of waste wood from the plant operation (from the dust extraction system and bark).
The size of the building for the Expandable WWCB Plant ranges from approx. 1.680 - 5.400 m² (minimum 70 m x 24 m, up to 135 x 40 m),
with an overall clear height of min. 5-6 meters (partly 7 meter clearance above selective equipment).
The size of the building for a Phase IV WWCB / EB Plant is approx. 4.500 - 9.000 m² (minimum 150 m x 30 m, up to 150 x 60 m),
with an overall clear height of min. 5-6 meters (partly 7 meter clearance above selective equipment).
This floor space includes for intermediate storage space for curing of the boards, as well as the board curing and trimming operation.
Additional storage space may be required for finished products, subject to local conditions.
The minimum land area required, including log yard, is approx. 3-5 HA
The budget pricing for the Eltomation Equipment for the Expandable WWCB Plant and Phase IV WWCB/EB Plant are as follows:
| Expandable WWCB Plant | |
| Main production line (subject to scope of supply): | EUR 4.500.000,-- to EUR 6.000.000,-- |
| Phase IV Plant | |
| Main production line (subject to scope of supply): | EUR 6.500.000,-- to EUR 8.000.000,-- |
| Automatic Board Dryer (optional): | EUR 1.000.000,-- to EUR 1.500.000,-- |
These prices include engineering, project management, an estimate for CIF/CIP shipping costs and Installation Supervision and Commissioning charges.
A detailed list of the items supplied by Eltomation is provided in our detailed System Proposal, which will be provided upon request.
Local supplied items (such as fork lift trucks, cement silo's, waste/dust recovery system, etc.) are not included in the Eltomation Price.
It will be possible to have additional selective parts of the plant equipment be sourced or manufactured locally per our specifications,
which will reduce the above mentioned price for the equipment and shipping charges. These items could include certain conveyors, steel structures, etc.
We are open for such discussion.
to download the Flow chart of WWCB production plant click here.
to download the Flow chart of EltoBoard production plant click here.