Cement Bonded Particle Board (CBPB) Plant

General Plant Operation:

Unlike our other Wood-Cement Products,  CBPB is not produced from the long wood wool fibers but from small wood particles, which are mixed and bonded by cement, water and a small quantity of additives. These wood particles are produced from either wood flakes/chips or from debarked logs (such as Pine/Spruce), to be processed to the proper dimensions. The Dosing & Mixing Process is based on a batch mixing process, where after the wood particle-cement mixture is precisely (and on continuous basis) spread onto special flat steel cauls by our proprietary Mechanical Forming Stations.

The scope of supply in the main production line furthermore includes the following processes/Groups: Caul Circulation – Mat Stacking – Stack Pressing– Curing Chamber – Destacking Operation of cured boards. Final processing includes: Board Drying, Final Trimming & Profiling and a Stacking/Packaging Operation. Optionally a Painting Line can be added.

Each Group is provided with its PLC-based Electrical Control System (SIEMENS S7-TIA), incl. Profinet. A integrated Data Management System with on-line interface allows for remote monitoring from the Eltomation head office.

CBPB Plant, Main Forming Line
CBPB Plant, Main Forming Line
CBPB Plant, Caul Handling System
CBPB Plant, Caul Handling System

For more pictures of the CBPB Plant, click here.

Board dimensions:

The following board dimensions apply:

Length:2400 / 3200 mm (other lengths are on request)
Width:1200 / 1250 mm (4ft)
Thickness:8 – 40 mm

Board densities:

The density of CBPB is approx. 1250-1400 kg/m³.

Product specifications will be in accordance to EN 634-2 : 2007.

  • Modulus of Elasticity (MOE) will be at 4500 Mpa
  • Modulus of Rupture will be at min. 10 Mpa.

Plant capacities:

The CBPB Plant can be provided in the following standard Plant Capacities (based on 3 shifts/day):

  • 120 m3 /day
  • 150 m3/day (being the most common plant capacity)
  • 200 m3/day

Raw material consumption:

The raw material Wood for CBPB production consists of debarked logs, such as Pine, Spruce or Poplar. Optionally Flakes/Chips can be used as basis material. Cement is common OPC (Portland Cement, such as CEM I 52,5 R). In addition Water and a low percentage Salt Solution (Sodium Silicate and Aluminum Sulphate) are used as accelerator. Raw material consumption for a 50 m3/shift plant capacity, based on 1-shift production is approx. as follows:

Wood:15 ton
Cement:40 ton
Water:25 m³
Salt solution:2,5 ton

Labor requirements:

The following labor requirements apply, including labor for maintenance, warehousing, cleaning, etc.
Plant management is to the discretion of Client.

Number of personnel per shift:16-20

Power consumption:

Based on the 150 m3/day production capacity, the total installed electrical power and electrical power consumption are approx.:

Installed Electrical Power:2000 kVA
Electrical Power Consumption:approx. 1500 kW

Building and land requirements:

The size of the building for a 150 m3/day CBPB Plant is approx. 10.000 m² (200 x 50 m), with an overall clear height of 5-6 meters above the main line (note: The Particle Board Preparation Group and Cement Silo’s will require considerably more height, which solution can be custom-made to a certain extend to meet local requirements).

This floor space includes for intermediate storage space for curing of the boards, as well as the board 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. 4-5 HA.

Project realization:

The realization of our CBPB Plant projects will be in close cooperation with our new European partners. This cooperation, which brings together the experiences and strengths of all parties, results in a faster and more efficient process for equipment & electrical controls design, manufacturing, plant commissioning and after-sales services.

*note: due to an extreme high workload at Eltomation and its project partners, the CBPB Plant technology cannot be offered at this moment.