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Jumbo MK3 MouldSKU: JJJBB.U
6 Inch U-Block Jumbo MK3 Mould MK3 Mould
The JJJBB.U is a heavy-duty interchangeable mould unit designed for the Doubell Jumbo MK3 brick making machine. It produces 6 Inch U-Block bricks with industrial-grade efficiency and consistency.
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U-Block
6 Inch U-Block
Model: BB.U
6 Inch U-Block (Beam Block). U-shaped profile for creating horizontal ring beams or lintels.
Dimensions
- L: 440 mm
- W: 150 mm
- H: 220 mm
Family
BB
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
0.00706 m³
Est. Mass
14.13 kg
Cost Per Brick (ZAR)
6.09
Cement: ZAR 3.11
Sand: ZAR 2.21
Stone: ZAR 0.60
Labor: ZAR 0.17
Production Forecasting
DIY Hand Mould
DIYBB.U
500
(1 min cycles @ 100% efficiency)
1
500
Bricks / Day
Jumbo MK2
JJM + JJBB.U
500
(1 min cycles @ 100% efficiency)
3
1500
Bricks / Day
Jumbo MK3
JJJM + JJJBB.U
500
(1 min cycles @ 100% efficiency)
6
3000
Bricks / Day