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Jumbo MK3 MouldSKU: JJJBA.U
9 Inch U-Block Jumbo MK3 Mould MK3 Mould
The JJJBA.U is a heavy-duty interchangeable mould unit designed for the Doubell Jumbo MK3 brick making machine. It produces 9 Inch U-Block bricks with industrial-grade efficiency and consistency.
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U-Block
9 Inch U-Block
Model: BA.U
9 Inch U-Block (Beam Block). A U-shaped block used to create horizontal reinforced concrete beams (lintels or ring beams) without formwork.
Dimensions
- L: 440 mm
- W: 220 mm
- H: 220 mm
Family
BA
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
0.00846 m³
Est. Mass
16.92 kg
Cost Per Brick (ZAR)
7.35
Cement: ZAR 3.72
Sand: ZAR 2.65
Stone: ZAR 0.72
Labor: ZAR 0.25
Production Forecasting
DIY Hand Mould
DIYBA.U
500
(1 min cycles @ 100% efficiency)
1
500
Bricks / Day
Jumbo MK2
JJM + JJBA.U
500
(1 min cycles @ 100% efficiency)
2
1000
Bricks / Day
Jumbo MK3
JJJM + JJJBA.U
500
(1 min cycles @ 100% efficiency)
4
2000
Bricks / Day