Hollo-Blast Junior
For internal diameters of approximately 19–50 mm; mounts on a blast hose or extension pipe.
Details →Clemco technology
Internal pipe blasting
Special Clemco accessories create a uniform 360-degree blast pattern and treat otherwise difficult-to-reach internal surfaces.
Hollo-Blast
For pipe diameters of approximately 65–300 mm, with suitable centring equipment and nozzle selection.
Details →Spin-Blast
For pipes of approximately 200–915 mm; its rotating head provides powerful, uniform treatment.
Details →| System | Typical internal diameter | Principle |
|---|---|---|
| Hollo-Blast Junior | 19–50 mm | Deflector tip, 360-degree blast pattern |
| Hollo-Blast | 65–300 mm | Deflector tip and centring equipment |
| Spin-Blast | 200–915 mm | Rotating blast head |
System selection and configuration
Internal pipe-blasting equipment is selected from the actual internal diameter, pipe length, substrate, existing contamination or coating, required cleanliness and profile, abrasive type, nozzle pressure and available compressed-air capacity. Correct centring keeps the deflector or rotating head on the pipe axis and makes treatment uniform around the full circumference.
Hollo-Blast systems convert the axial abrasive stream into a 360-degree radial pattern by means of a deflector tip. Spin-Blast uses a rotating blast head for larger diameters and demanding production work. Extension pipes, centring carriages, nozzle components and wear parts are configured as one system.
Information required for a technical proposal
- Minimum and maximum internal pipe diameter
- Pipe length, material and end accessibility
- Initial condition and required surface result
- Planned abrasive and required surface profile
- Available compressed-air flow and pressure
- Manual, semi-automatic or production-line operation
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