Measuring arch with laser sensors of the Rometa height control system above a tray of blocks

Machines & technologyPublished on August 23, 2026· 1 min read

PIECE HEIGHT CONTROL SYSTEM ROMETA

How Rometa's piece height control system works: real-time laser measurement with ±0.1 mm accuracy, 6 points per cycle, and automatic or manual machine adjustment.

Key takeaways

The system measures block height with 3 laser sensors (left, centre, right) positioned on a measuring arch at the block machine's exit, with an accuracy of ±0.1 mm.
Each sensor measures the front and rear of the block, generating 6 measurement points per cycle, it also detects uneven compaction and tilt, not just height.
Classifies each piece as OK or KO against a configurable tolerance threshold (e.g. ±1 mm), with automatic machine adjustment (filling volume and vibration) or manual mode for the operator.

Concrete block height control system

In block manufacturing, dimensional precision is key to quality and reducing rejected parts. Rometa's height control system automatically measures block height on the production line without stopping the trays or reducing productivity.

How does it work?

Trays with freshly manufactured blocks pass through a measurement arch equipped with laser sensors. The system calculates the actual height of each piece and classifies it as OK or KO according to the tolerance set by the operator via a touchscreen display.

Automatic or manual adjustment

Automatic mode:automatically adjusts the block machine parameters without operator intervention.
Manual mode:the operator adjusts the machine based on the data displayed on screen.

Benefits

Consistent dimensions across batches
Less waste and rejects
Greater process stability
Improved production traceability

Do you have a specific production challenge?

We will advise you without obligation on the height control system that best fits your factory.

Request a quote.

Photo gallery

Touchscreen of the Rometa height control system showing the 6 measurements

Aggregate unloading point

The truck unloads into a hopper and the aggregate is conveyed up by belt to the distributor, which fills each hopper of the plant. If space is limited, a vertical aggregate elevator allows for a much more compact installation.

Rometa colour dosing unit with four pigment hoppers in an industrial building

Automatic pigment dosing

Supplied in sets of 1, 2, 3 or 4 colors, each with its own sealed hopper of 0.5 m³, with no pigment mixing. A 30 kg weighing cart with three load cells measures each dose before discharging it onto the aggregate conveyor or skip. Dosing controlled from the control cabin, with less dust and less pigment loss.

Rometa 4050S vibro-compression machine at the UK installation

ROMETA 4050S: fully automatic high-capacity line in the UK

ROMETA 4050S fully automatic high-capacity block making line installed in the UK, with 1300 x 1000 mm trays and rotating finger-car curing.

Have a specific production challenge?

Talk to a Rometa engineer about your project.

Request a quote