Wet spraying machine for tunnel support
Advantages of Wet Spraying Machines (vs. Dry Mix)
Feature Wet Spraying Machine
Production Rate Very High (10-30+ m³/hr)Lower (5-15 m³/hr)
Rebound Lower (5-15%), meaning less material waste
Higher (20-35%), more material waste
Working Environment Much better. Less dust, improved visibility and air quality.Very dusty, requires extensive ventilation and PPE.
Consistency & Quality Higher and more consistent. Pre-mixed concrete ensures uniform water-cement ratio and strength.Depends heavily on nozzleman's skill to add water correctly.
Fiber Reinforcement Excellent. Handles both steel and synthetic fibers effectively.Can be challenging, especially with synthetic fibers.
Equipment Cost Higher initial investment.Lower initial investment.
Setup & Mobility Larger, more complex setup.
