Overhead Monorail (DHB)
The DHB Overhead Monorailsystem is a high-throughput, closed-loop blast cleaning solution designed for continuous processing of large, heavy,or high-volume workpieces. Combining thelatest Power & Free conveyor technologywithrotating hook transportandTITAN blast wheels, theDHB system ensures maximum cleaning efficiency, minimal blast shadows, and reduced energy and maintenance costs.
Ideal for integration into automated production lines, the DHB system delivers fast cycle times, consistent results, and flexible configuration optionsfor complex manufacturing environments.
Applications
- Sand removal and decoring of iron, steel, and aluminium castings
- Removal of mill scale, forge scale, and rust
- Deburring and surface roughening for coating preparation
- Shot peening to improve fatigue resistance
- Cleaning of large welded constructions and complex fabrications
Key benefits
Continuous, High-Volume Operation
Closed-loop Power & Free conveyor with rotating workpiece carriers for non-stop throughput
Efficient Surface Coverage
Rotating hooks and one-sided blast wheel layout ensure thorough cleaning with lower power consumption
Advanced Blast Technology
TITAN blast wheels with pre-accelerated abrasive for shorter treatment times and longer wear life
Durable & Accessible Design
Manganese steel blast cabinet, overlapping wear plates, and sealed monorail slot system
Flexible Integration
Configurable with manual or automated loading, sluice-equipped cabins, and PLC control for inline operation
Optimized Abrasive Recovery
Magnetic separation, vibro sieves, and airwash systems reduce media consumption and wear
Industries
- Foundry and casting
- Heavy fabrication and structural steel
- Automotive and truck
- Energy, marine, and rail
- Aerospace and general engineering
Configurations / Options
Workpiece Capacity:
- Hook diameters: 1,000–3,000 mm
- Heights: up to 4,000 mm
- Max load: 500–10,000 kg per hook
Blast Wheels:
- 2 to 6 wheels
- Power: 7.5–18.5 kW per wheel
- Cycle time: 3–10 minutes depending on part size and finish spec
Transport Systems:
- Manual monorail or Power & Free conveyor
- Automatic loading/unloading and door control
- Sluiced inlet/outlet for uninterrupted cycles
Abrasive Management:
- Vibro conveyor, sieve, airwash separator
- Magnetic separator for sand removal
- Impact separator and ATEX-compliant cartridge filters
Additional Options:
- Wet filter units (e.g. for aluminium die casting)
- PLC integration with production line
- Custom hook fixtures or crane integration