COBOD - Mini Batch Plant

3D PRINTED CONCRETE
The COBOD Mini Batch Plant allows for printing with real concrete as opposed to dry-mix mortars. This allows for significant cost savings, as 99% of the 3D printable concrete can be based on locally available raw materials.

ENHANCED MIX CONTROL
Using the batch plant enables much-improved control of material to accommodate various climates and speeds of printing. The material mixing solution allows for detailed tweaks of material parameters to ensure excellent quality of 3D printing material.

DIGITALLY INTEGRATED
The solution is equipped with the hydraulic COBOD concrete piston pump and Round Big-Bag Silo. The BOD2 3D concrete printer and the COBOD concrete piston pump are controlled digitally enabling the automatic pumping of material when the printhead is close to running empty of material.

The COBOD Mini Batch Plant is part of the recommended material equipment used in the production of concrete in immediate proximity to the construction site. The plant is specially developed to accommodate the requirements when wanting to 3D print with locally sourced concrete. The machine is built on a steel frame, where the batch plant comprises of an agitator pan mixer resting on three load cells, a hopper with two compartments (for sand and aggregates), V-shaped feed belts, water tank, dosing equipment for two chemical substances, and a control unit with a batching computer.

• Volume (gross/net) [L] 500/300
• Capacity [m3/h] 3-5
• Belt speed [m/s] 0.4
• Motor output, mixer motor [kW] 7.5
• Motor output, feed belt [kW] 1.5
• Mixing arms/side skrabers [pcs.] 4/1
• Weighting accuracy [%] +/- 0.5
• Dosing accuracy [%] +/- 3
• Recipes [no.] 50
• Aggregate hopper [m3] 2 x 2.4
• Enlarged silo sides [m3] 2 x 1.5
• Total silo capacity w. enlarged sides [m3] 2 x 3.9
• Water tank [L] 250
• Water pressure [bar] 2
• Dimensions (W x H x L) [m] 2.3 x 2.5 x 5.2
• Weight [kg] 3000
• Power supply, current [A/KVA] 25/18
• Power supply, voltage [V] 3 x 400V, PE
• Frequency [Hz] 50
• Maximum voltage fluctuation [%] +/- 10
• Required bed plate flatness [°C] 5
• Operating system - Phoenix PLC