Putzmeister introduces new shotcrete products

Putzmeister has launched two new pieces of equipment for the application of shotcrete in underground mining: the Wetkret 4 concrete spraying system and the Mixkret 3 low-profile mixer
Putzmeister introduces new shotcrete products Putzmeister introduces new shotcrete products Putzmeister introduces new shotcrete products Putzmeister introduces new shotcrete products Putzmeister introduces new shotcrete products

New Putzmeister concrete sprayer Wektret 4

Staff reporter

PRESS RELEASE: Putzmeister has been expanding its range of mechanised shotcrete equipment in recent months.

Its new Wetkret 4 concrete sprayer is suitable for the construction of narrow galleries in underground mining, due to its heavy-duty chassis with a compact size (1,900mm in width and 2,200mm in height) and a reduced turning radius. It includes two spraying arm versions, adapting to the client's gallery requirements, one with a maximum vertical reach of 10m and one with 7.5m.

According to Putzmeister, the Wetkret 4 shotcrete pump guarantees a homogeneous application, ensuring the required quality and layer of thickness, as well as reducing rebound. Its concrete flow of 20m3/h allows for increased productivity.

Wetkret 4 also comes equipped with automatic synchronisation of the additive dosage with the concrete flow, a FOPS/ROPS-certified cabin that faces the direction of travel, ICVD hydrostatic transmission, an integrated air compressor and optimal weight distribution.

Mixkret 3, in turn, expands Putzmeiter's Mixkret family (Mixkret 3, Mixkret 4 and Mixkret 5), and is designed to improve the overall shotcrete process.

The mixer is compact and robust, small in size and turning radius, and suitable for narrow-vein mining. It also complements the Wetkret 4 concrete sprayer, which contains the same components, facilitating and improving spare parts management.

Putzmeiter said the Mixkret 3 is the only mixer in the market of its height (2,200mm) that has a mixing capacity of 3m3.

Like the rest of the Putzmeister's Mixkret range, the new model comes with a powerful motor (a diesel engine with four cylinders and 106kW), offering good capacity for climbing and transfer, as well as the ability to work at height. It also has a continuously variable hydrostatic transmission system (ICVD) without gear changes, which improves climbing ability, transfer speed, starting acceleration and fuel consumption.