Dry-Mix Shotcrete Equipment Categories

The main categories of dry-mix shotcrete equipment are as follows:
Pressure Vessels & Gunite Machines
Batch Plants & Pre-Dampeners
Water Pressure Boosters
Hoses and Nozzles
Pressure Vessels & Gunite Machines
The key piece of equipment for any dry-mix shotcrete setup is the gunite machine, primarily a rotary gunite machine. The key to this piece of equipment is the addition of water at the nozzle–the most distinguishing feature of the dry-mix process. The first gunite machines (known as the “cement gun”) were pressure vessels, basically steel tanks affixed with plumbing for air to flow throughout. Modern rotary gunite machines include a hopper where dry or pre-dampened material can be added. These machines are typically powered by an air motor, although hydraulic powered machines are also available. The motor rotates the gunite machine’s material feed system, which continuously directs material from the hopper to the outlet, where the material is propelled by air to the hose and nozzle.