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Jumbo MK3 MouldSKU: JJJBCM.U
M4 U-Block Jumbo MK3 Mould MK3 Mould
The JJJBCM.U is a heavy-duty interchangeable mould unit designed for the Doubell Jumbo MK3 brick making machine. It produces M4 U-Block bricks with industrial-grade efficiency and consistency.
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U-Block
M4 U-Block
Model: BCM.U
M4 U-Block (Beam Block). U-shaped profile for creating horizontal ring beams or lintels.
Dimensions
- L: 390 mm
- W: 90 mm
- H: 190 mm
Family
BCM
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)
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Est. Volume
0.00502 m³
Est. Mass
10.04 kg
Cost Per Brick (ZAR)
4.31
Cement: ZAR 2.21
Sand: ZAR 1.57
Stone: ZAR 0.43
Labor: ZAR 0.10
Production Forecasting
DIY Hand Mould
DIYBCM.U
500
(1 min cycles @ 100% efficiency)
2
1000
Bricks / Day
Jumbo MK2
JJM + JJBCM.U
500
(1 min cycles @ 100% efficiency)
5
2500
Bricks / Day
Jumbo MK3
JJJM + JJJBCM.U
500
(1 min cycles @ 100% efficiency)
10
5000
Bricks / Day