The outer formwork consists of four separate steel panels connected during concreting. The boards are mounted on movable carriages (1), which provide a reverse motion when stripping the formwork.

A thermal heating circuit can optionally be placed inside the outer shields to speed up the curing process. In this case, any coolant of your choice can be used: steam, water, oil. Along the perimeter of the mold platform of the elevator shafts, there is a service platform that provides access to the upper parts of the mold for personnel, and simplifies not only pouring and compacting concrete, but the entire technological process (2).

What features of the mold for the production of elevator shafts do we want to note?

Bevels are located on the inner formwork, forming a funnel for the convenience of concreting.

Each outer wall of the mold is equipped with external high frequency vibrators, providing first class concrete compaction (3).

The form is universal! It can be adjusted in height. All opening formers are fixed with the help of magnetic bead equipment, which makes it easy to change their location if necessary.

The payback of the form for the production of elevator shafts is on average up to 1 year.

In addition, our design department has developed an alternative solution for the molding of elevator shafts (4). In this case, the outer formwork and the inner core are heated, the sides are tilted, the core has a stripping slope of 20 mm on each side to a height of 3 meters. When working with a mold, the reinforcing cage must be completely prepared in advance and installed in the mold by a crane. The vibrators are mounted on the base (5).

After installing the reinforcing cage, the outer sides are closed, the geometry of the product and the tightness of the joints are checked, then concreting takes place. During the “maturation” of concrete, the walls of the future elevator shaft are heated, both from the outside and from the inside. In the outer sides of the mold and in the inner core there is a sealed thermal circuit for uniform heating of the entire structure. Steam, water or oil can act as a heat carrier. After the product has gained the required strength, demoulding takes place. First of all, the outer walls of the formwork are folded in turn. To avoid dynamic load when removing the finished shaft from the core, a hydraulic system is used, located at the base of the mold. Hydraulics smoothly raises the product by 30 mm, thereby releasing it from the core. Then the product is completely removed from the mold using a crane (6).