This block mould is for the Doubell Jumbo MK3 Block Machine to produce M4 cavity blocks at a commercial blockyard level output. It does 10 per drop & can produce 5000 M4 blocks per day (8-hour shift) with 5~7 workers on an area of 900m² (concrete slab or equivalently flat surface)

JJJBCM M4 Cavity Block MK3 Mould (90x190x390mm)

  • 90x190x390mm size M4 Cavity block - this metric building block is used for interior walls but can also be used for boundary walls by using pillar blocks at intervals.