MoldtechEquipment for precast concrete elements

MT20

Moldtech introduces adjustable high performance mould for the pro-duction of box culvert using dry cast.

All operations can be carried out using 2 workers reducing thereby the costs of the final product.

1. Base rings. The base rings can be adjusted in size.

2. Vibropress. It is placed on pistons and presses and vibrates at the same time ensuring an optimum finish.

3. Interior mould. Has a minimal conical shape which allows to take out the moulds without any problem.

Advantages:• High performance:• Output: 8 box culverts in less

than 8 hours• To be operated by 2 persons

only• All movements carried out

hydraulically

• Strong rigid mould

Flexible:

• Same mould produces sizes from 2 x 2 meters to 4 x 3 meters

• Thickness of frames from 15 to 25 cm.

• Height of box culvert from 1 to 2 meters

• Does not require civil works for installation

• Can be transported from building site to building site

Functioning of the mould:

The base is placed on the ground and the outer and inner moulds are situated on top of the base by using a gantry crane. Both moulds are fixed to the base using hydraulic clamps.

After taking off the press from the top side, the ironwork is placed between the inner and outer mould.

After this the concrete is poured uniformly between the two sides. Once the mould has been filled as much as is required, the upper frame press is put in place and the vibropressing system is activated.

The next step is to open the hydraulic clamps and remove the outer and inner moulds, both of which are attached to the press on top. This leaves the concrete element on the base where it is left untouched until it is fully cured. The process is then repeated on the next base.

1. Vibration frequency controller

2. Central control unit for hydraulic movements

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High performance mould for box culvert using dry cast

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MT20 Modular systemfor dry-cast box culverts

MT20

All the joints of the components of the MT20 are machine drilled in order to guarantee a seamless fit.

All joints have features facilitating its placement and extraction.

With 3d simulation the production process is optimized reducing production time.

1.Supplements incorporating machine drilled edges and pins for facilitating its placement

2. Detail of the base supplements incorporating silent blocks which reduce the vibration transmitted to the floor

3.Interior/exterior panel supplement

4.Detail of assembly of the basis of the interior mould

Optimizing the design:

The MT20 has been designed using the latest CAD 3D technology which allows to perform simulations in order to evaluate resistance and security, the easiness of assembly and the productivity of the mould thereby enhancing the quality of the mould.

Moldtech has the latest design and structural calculation tools in order to innovate, improve and develop.

F. Moldtech

Details of the production of the mould

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Design and Quality

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MT20 Modular systemfor dry-cast box culverts

MT20

The entire set is made up of:

- 2x2 mould with varying thickness

- Press chassis

- 1 press with upper part of dovetailing

- 10 adjustable bases with silent blocks

- Electrical vibration system with frequency variators

- Hydraulic Control Centre

- Interchangeable panels for sizes in excess of 2x2

- Work gangway.

The MT 20 is an adjustable mould which, by using supplements, allows to make a wide varieties of sizes and thicknesses. The exterior mould, the interior mould and the bases are adjusted inserting or extracting these supplements achieving a product tailored to the specific need of our clients.

Apart from sizes 2 x 2 to 3x 4 there exists the possibility the produce other sizes on request.

The dovetailing (male/female) design of the box culvert can be made in accordance to the specifications of the client.

1. Detail of mould interior

2. Detail of connection between exterior mould and the basis

3. Detail of the corner of the mould

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Design and Quality

Interior side of the mould

Top view of box culvert

Sizes A x B (m) Thickness E (cm) Height H (m)

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MT20 Modular systemfor dry-cast box culverts