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Jumbo MK3 MouldSKU: JJJBC

4 Inch Block (Imperial) Jumbo MK3 Mould MK3 Mould

The JJJBC is a heavy-duty interchangeable mould unit designed for the Doubell Jumbo MK3 brick making machine. It produces 4 Inch Block (Imperial) bricks with industrial-grade efficiency and consistency.

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Cavity Block

4 Inch Block

Model: BC

Standard 4 Inch Cavity Block (Imperial size). Closed bottom. Typically used for internal partition walls where load-bearing requirements are lower, or for garden walls.

Dimensions

  • L: 440 mm
  • W: 110 mm
  • H: 220 mm

Family

BC

Compatible Machine

Doubell Jumbo MK3 Manual "egg-layer" Brick Machine (Mould not included)
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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Cost Calculator

Est. Volume
0.00854
Est. Mass
17.07 kg
Cost Per Brick (ZAR)
7.28
Cement: ZAR 3.76
Sand: ZAR 2.67
Stone: ZAR 0.73
Labor: ZAR 0.13

Production Forecasting

DIY Hand Mould

DIYBC
500
(1 min cycles @ 100% efficiency)
2
1000
Bricks / Day

Jumbo MK2

JJM + JJBC
500
(1 min cycles @ 100% efficiency)
4
2000
Bricks / Day

Jumbo MK3

JJJM + JJJBC
500
(1 min cycles @ 100% efficiency)
8
4000
Bricks / Day

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