EVO2 Extruder

NORDIMPIANTI’s EVO2 Extruder machines have been designed for the production of a wide range of prestressed concrete hollow core slabs both for floors and walls on long production beds.

The machine offers a cost-effective solution for companies who are looking for a flexible approach to produce hollow core slabs in various sizes.
The Extruder machine casts elements in a single phase using the extrusion method without the need for vibration thus keeping the noise of the machine to a minimum.

Concrete is pushed into place around the forming tubes by the Archimedean screws ensuring an excellent level of compaction at every point along the element.
The forming tubes and the side formers create the shape and the voids of the element.

The machine is modular and the power unit together with the hopper can easily be transferred to another forming insert to enable a slab with a different height to be produced.

Standard element heights range from 120 mm to 520 mm and are available in widths of 600 mm, 1200 mm, 1250 mm, 1500 mm and 2400 mm.

The heights of the elements, as well as the thickness of the vertical ribs can be varied within certain limits according to the application and the element specifications required.


Models

EVO2 Extruder
Modular and Interchangeable

Comparison table +


The NEW EVO2. A good machine just got better.

Elements that can be produced +


Technology

How it works

Read more +

Concrete is delivered to the extruder’s hopper (1) and by gravity falls onto the Archimedean screws (2).
The screws then drive the concrete into the compaction chamber (3) where the forming tubes (4) are situated. The forming tubes and the side formers create the shape and the voids of the element without the use of vibration.
Screws, together with the forming tubes, the side formers and the smoother (5) have an oscillating movement backwards and forwards which give excellent concrete compaction at every point along the element ensuring the element’s excellent technical characteristics.
NORDIMPIANTI’s EVO2 extruder is equipped with a compaction control system (6) that allows the operator complete control of the machine in order to reduce or increase the concrete compaction when required.

Description

EVO Extruders from Nordimpianti are made up of 3 main units, a universal control and power unit, a universal hopper and an interchangeable forming insert module.

Power unit

The universal power unit houses the main motors, the drive motors and the control panel. The power unit, together with the hopper can be easily and quickly transferred to another forming insert to produce a different element.

Hopper

The concrete is delivered to the machine’s hopper. The concrete then falls onto the Archimedean screws of the forming insert.
The hopper has a minimum level sensor which stops the machine if there is not enough concrete. This device stops the machine in order to avoid the situation where element damage can occur if the machine is completely out of concrete.
When the hopper is refilled the Extruder automatically restarts.

Forming insert

The forming insert contains the special gearbox with an oil bath for the transmission components. It also contains the Archimedean screws, forming tubes, side formers, smoother and the wire guides.
The height of the hollow core slabs and the number of voids is determined by the forming insert. Different element heights can be manufactured by changing the forming inserts. The standard forming inserts produce hollow core slabs with 8, 6, 5 or 4 holes.

Forming insert

8,6,5,4
hole


8 screw forming insert
HC slabs 150 mm high


6 screw forming insert
HC slabs 200 mm high

5 screw forming insert
HC slabs 265 mm high


4 screw forming insert
HC slabs 320-500 mm high
• Forming tubes (1)
• Smoother device (2)
• Concrete conveyor (3)

Production flexibility

The 4 screw forming insert is capable of producing hollow core slabs with different heights by simply changing some components supplied as an accessory set. This accessory set consists of the following:
• Forming tubes (1)
• Smoother device (2)
• Concrete conveyor (3)
For the 4 screw forming insert the accessory sets can be supplied to enable panels between 320 mm and 500 mm high to be produced. Special accessory sets are also available for other forming insert types.


Technical data

Length, with cable drum
5100 mm
Width
1680 mm
Height, depending on forming insert
2240 - 2360 mm
Rail gauge, standard Nordimpianti casting bed
1410 mm
Volume concrete hopper
1.8 m³
Total weight, depending on forming insert
8000 - 8600 kg
Connection power, 400 V, 50 Hz
52 kW
Noise level
< 85 dBA

Top Advantages

of NORDIMPIANTI’s Extruder machines

The new EVO2 a good machine just got better

  • 1) New design;
  • 2) Reduction in maintenance costs;
  • 3) Improved product quality;
  • 4) Improved machine operation;

Design and engineering
Made in Italy


Trasmission in oil bath

New Design
 


New screw designs

Independent screw motors
 


Dynamic machine control
DCM (Optional)

New smoother


New cardan joint system
between shaft and trasmission


New side formers
 

New hopper



New control panel


No need for extra access ladders


Tool holdercompartments


Auxiliary power socket
repositioned

Hook holders


Improved rear
work platform

Productionschedule support


New led lamp

Inspection lamp



Water tank with spray
system on upper cables

New system for wire guide
plate movement


Low maintencance cost

New concrete conveyor



Excellent surface finish

Floors
and
Walls

for Walls
Hollow Core Slabs for Walls

Production of prestressed hollow core slabs for Floors and Walls

With the NORDIMPIANTI Extruder EVO2 machine it is possible to produce hollow core slabs for floors and for walls.

The production system gives a good surface finish on both sides of the element (one side is smooth because of the steel casting bed and the other side is given an excellent finish by the smoother device on the casting machine). It means that the panel is finished, ready for painting if required.


for Floors
Hollow Core Slabs for Floors

Production of special elements

NORDIMPIANTI’s EVO2 Extruder can also be equipped to produce hollow core slabs for floors with profile edge keys along the sides of the element. These enable the elements, when constructed together to meet seismic requirements.

The particular corrugated side edge is made by special edge cog rollers.

Production of special elements

Gallery

Extruder EVO2
Extruder EVO2
2.4 m wide Extruder EVO2
2.4 m wide Extruder EVO2
Individual screw speed, easy to adjust in operator panel
Individual screw speed, easy to adjust in operator
Trasmission in oil bath
Trasmission in oil bath
New screws design with even more lifetime
New screws design with even more lifetim
New design for the smoother device
New design for the smoother device
User friendly interface
User friendly interface
Minimum downtime for forming insert changing
Minimum downtime for forming insert chan
Low maintencance cost
Low maintencance cost
Excellent surface finish
Excellent surface finish
Excellent concrete compaction and steel wire bonding
Excellent concrete compaction and steel wire
Para-seismic side indenting device (Optional)
Para-seismic side indenting device (Opt
Nordimpianti System Srl
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