Solenoid Water Bars and Adjustable Water Volume Predampener for Controlled Material Moisture

Myda
10 Aug 2026
Business

Efficient moisture control is essential when preparing gunning materials for refractory and shotcrete applications. The Blastcrete Predampener is designed to provide controlled predampening by adding up to 5% moisture to gunning materials before they reach the application nozzle. With solenoid water bars and simple water-volume adjustment, the system helps operators achieve consistent material conditioning while supporting proper hydration and reduced rebound.

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Precise Predampening for Gunning Materials

The Blastcrete Predampener uses a completely hydrostatic system to provide precise material predampening and output control. Its 9-inch hydrostatic predampening auger works with the material feed system to move and condition material efficiently.

The machine is equipped with two solenoid-activated water bars. These solenoid water bars allow water to be introduced into the material during the predampening process. Simple water-volume adjustment gives operators control over the amount of moisture added to the gunning material.

This controlled approach can help contractors prepare material consistently for downstream refractory and shotcrete operations.

Adjustable Water Volume Predampener

An adjustable water volume predampener can be valuable when different materials or application conditions require different moisture levels. The Blastcrete Predampener is designed to add up to 5% moisture, allowing contractors to adjust the water input according to their material and process requirements.

The two solenoid-activated water nozzles provide a practical method of introducing water into the material stream. Combined with hydrostatic operation, the system is designed to give users greater control over both material output and moisture addition.

Heavy-Duty Mixing and Material Feeding

The Predampener incorporates a mixing auger with a removable rubber enclosure. It also includes a hopper with a material feed screw and capacity of up to 3,000 pounds.

These components work together to provide continuous material handling and predampening. The skid-mounted design includes forklift tubing, making the unit suitable for material-handling environments where equipment mobility and positioning are important.

Designed for Industrial Refractory Applications

The Blastcrete Predampener is intended for demanding material-preparation applications. Its combination of a hydrostatic auger, mixing system, feed screw, and solenoid water bars provides a complete approach to controlled material predampening.

The manufacturer states that the Predampener is recommended by major refractory material manufacturers. Its design can support contractors seeking consistent moisture addition before gunning operations.

Production Capacity and Power

The Predampener provides an output range of 0–12 tons per hour. It is skid mounted with forklift pickup and has overall dimensions of 156 inches × 60 inches × 72 inches. The listed machine weight is 2,800 pounds.

Power is provided by a 20 HP electric motor, available in 240V or 480V three-phase configurations. A disconnect and enclosure are included with the electric motor configuration.

For applications requiring additional mobility, a trailer-mounted option is also available.

Key Features
9-inch hydrostatic predampening auger
Two solenoid water bars
Adjustable water-volume control
Mixing auger with removable rubber enclosure
Up to 3,000-pound hopper capacity
Material feed screw
20 HP electric motor
Skid-mounted design with forklift pickup
Optional trailer mounting
Output capacity of 0–12 tons per hour
Designed to add up to 5% moisture to gunning materials
Predampening Equipment for Consistent Material Preparation

For contractors working with refractory or gunning materials, controlled moisture addition can be an important part of material preparation. The Blastcrete Predampener combines hydrostatic material handling with adjustable water volume and solenoid-controlled water delivery to provide a practical predampening solution.

Its production capacity, heavy-duty construction, and forklift-ready skid design make it suitable for industrial environments where reliable material preparation and controlled output are important.

Download the Predampener Brochure

Specifications
Output: 0–12 tons per hour
Mounting: Skid mount with forklift pickup
Dimensions: 156" × 60" × 72"
Weight: 2,800 lbs.
Hopper Capacity: Up to 3,000 lbs.
Predampening: Up to 5% moisture addition
Motor: 20 HP electric
Electrical Options: 240V or 480V, 3 phase
Water System: Two solenoid-activated water bars
Optional Configuration: Trailer mounted