Extruders for the production of concrete slabs: how they work – a modern solution for the accelerated and precise manufacture of hollow core slabs.
Introductory paragraph: With the rapid industrialization of the construction industry, the importance of high-precision, automated technologies is growing. Extruders ensure high-quality molding of slabs of various heights with stable productivity, making them an indispensable tool in the production of reinforced concrete products.
How concrete slab extruders work
The technology is based on passing the concrete mixture through the extruder's compaction unit under high pressure using screws. This is the principle behind how concrete slab extruders work: the screws push the mixture through, the vibrating screed compacts it, and the combined action forms a uniform slab. The modular design includes a power unit, a 1.5–3 m³ hopper, and independent motors for the screws. The innovative S series interface with a touch screen and ML algorithms automatically adapts the parameters to the properties of the mixture, ensuring high accuracy at a speed of 1.4–3.5 m/min.
How the extruder works in practice
Extruders are used to manufacture hollow floor slabs of various heights (120–600 mm) and track widths (1200, 1500, 2400 mm). Adjustments for thermal or sound insulation layers and fire resistance classes make it easy to adapt production. Autonomous movement along the mold base rail and the absence of cardan shafts simplify operation. A wide service platform increases safety and ease of maintenance.
Key advantages of extrusion technology
- Consistent quality: compaction of the concrete mixture “on the fly” ensures uniform slabs without voids.
- Productivity: speeds of up to 3 m/min (S series) efficiently load the production cycle.
- Flexible settings: slab height from 80 to 600 mm, choice of width, adjustments for insulation and fire resistance.
- Low maintenance costs: no gearboxes or cardan joints — fewer failures, easier repairs.
- Easy to use: ergonomic interface, access to the hopper and components, quiet vibration rail.
All these advantages make concrete slab extruders a key factor in the modernization of reinforced concrete production.
The solution for your plant: is it worth implementing an extruder?
We offer extrusion lines from the renowned manufacturer TDM Engineering Oy — with proven quality wear-resistant materials, a modular platform, and modern control. The investment pays off through:
1. Increased throughput,
2. Reduced cycle time,
3. Reduced downtime and repair costs,
4. Guaranteed stable quality even when the concrete composition changes.
Why choose extruders from TDM Engineering Oy
So, how do extruders for the production of concrete slabs work? It is an efficient, reliable, and flexible technology adapted to the modern requirements of reinforced concrete production. If you are looking to increase productivity and product quality, contact our company. We will help you select the optimal extruder model (S, N, or L series), configure it for your tasks, and provide support at all stages of implementation. Contact us today for professional advice and a proposal based on the specific needs of your business.
