
Hollow blocks
Concrete hollow blocks in 6", 8" and 9" sizes, with a corner groove at both ends.
Three product categories, each formed on the QT5-15 line with a compatible mould, plus custom blocks made to your specification.

Concrete hollow blocks in 6", 8" and 9" sizes, with a corner groove at both ends.

Solid concrete bricks, made with compatible solid-brick moulds.

Concrete paving products, made with compatible paving moulds.
Sizes
Our standard hollow block range, and the moulds available for the line.
| Block | Size (W × H × L) | Face shell | Cores | Solid ratio | Approx. weight |
|---|---|---|---|---|---|
| 6" (6 × 8 × 16 in) | 150 × 200 × 400 mm | 30 mm | 2 × 140 × 90 mm | 55% | 13.8 kg |
| 8" (8 × 8 × 16 in) | 200 × 200 × 400 mm | 32 mm | 2 × 140 × 136 mm | 49% | 16.4 kg |
| 9" (9 × 8 × 16 in) | 230 × 200 × 400 mm | 35 mm | 2 × 140 × 160 mm | 48% | 18.5 kg |
Block: 6" (6 × 8 × 16 in)
Block: 8" (8 × 8 × 16 in)
Block: 9" (9 × 8 × 16 in)
From our hollow block drawings. Dimensions in mm; the 400 mm length has no mortar allowance, and cores taper 3–5 mm for mould release. Weights are indicative (at 2,100 kg/m³) and are confirmed with the plant mix.
Block machine mould 01
150 × 200 × 400 mm
6 pieces per mould
Block machine mould 02
100 × 200 × 400 mm
9 pieces per mould
Block machine mould 03
125 × 200 × 400 mm
8 pieces per mould
Block machine mould 04
400 × 200 × 60 mm
5 pieces per mould
Need a size or shape that isn't listed? Share your drawing or specification and we can make custom blocks for your project.

The QT5-15 uses interchangeable moulds, so the product you make is defined by the mould you fit.

Illustrative paving application
Applications
Concrete paving products suit pedestrian routes, entrance areas and landscaped surroundings.
Paving shapes and sizes come from the mould fitted to the line, and coloured paving needs the optional colour feeding system. Tell us about your site and our team will confirm which paving products are available for it.