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Jumbo MK3 MouldSKU: JJJBBM.OB
M6 Block Open Bottom Jumbo MK3 Mould MK3 Mould
The JJJBBM.OB is a heavy-duty interchangeable mould unit designed for the Doubell Jumbo MK3 brick making machine. It produces M6 Block Open Bottom bricks with industrial-grade efficiency and consistency.
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Cavity Block
M6 Block Open Bottom
Model: BBM.OB
M6 Block with Open Bottom. Designed to allow for vertical reinforcement (rebar) and concrete filling through the cavities.
Dimensions
- L: 390 mm
- W: 140 mm
- H: 190 mm
Family
BBM
Compatible Machine

MK3 Range
Doubell Jumbo MK3 Manual "egg-layer" Brick Machine (Mould not included)
Doubell Jumbo MK3 Manual "egg-layer" Brick Machine (Mould not included)
View Base MachineCost Calculator
Est. Volume
0.00610 m³
Est. Mass
12.20 kg
Cost Per Brick (ZAR)
5.28
Cement: ZAR 2.68
Sand: ZAR 1.91
Stone: ZAR 0.52
Labor: ZAR 0.17
Production Forecasting
DIY Hand Mould
DIYBBM.OB
500
(1 min cycles @ 100% efficiency)
1
500
Bricks / Day
Jumbo MK2
JJM + JJBBM.OB
500
(1 min cycles @ 100% efficiency)
3
1500
Bricks / Day
Jumbo MK3
JJJM + JJJBBM.OB
500
(1 min cycles @ 100% efficiency)
7
3500
Bricks / Day