This block mould is for the Doubell Jumbo MK2 Block Machine to produce M6 cavity blocks at a commercial blockyard level output. It does 3 per drop & can produce 1500 M6 blocks per day (8-hour shift) with about 5 workers on an area of 450m² (concrete slab or equivalently flat surface)
JJBBM M6 Cavity Block MK2 Mould (140x190x390mm)
140x190x390mm size M6 Cavity block - this metric building block is used for exterior supporting walls but can also be used for boundary walls. This is also known as the RDP block in South Africa & is the most common after stock bricks.