with various diameters equipped with a platform with guides for the outer jacket. The mold core is made of S-355 JR high-strength sheet, 5mm thick, which is mechanically tapered with a wedge using a lever or hydraulically, depending on the customer's needs. The top of the core is topped with a cover with technological slope 1/20. Outer sheath equipped with rollers, high-strength locks, centering pins and handles. The height of the ring is adjusted manually by lifting the steel ring and setting it at the desired height. Thanks to the use of an innovative gasket, the self-compacting concrete used in the molds does not cause leaks from the mold.
