Pass-through Tunnel Blasting Machines

BlastKing is a world leader in surface preparation technology, offers a complete range of surface preparation technologies, parts and services and stands ready to improve our customers’ productivity and profitability.

The constant traveling speed of the workpieces ensures that the tunnel-type shot blasting machine can be easily and smoothly integrated into an existing production line.

The ability to adapt the moving speed of the workpiece and the wheel power ensures that the machine can be easily and smoothly integrated into an existing production line. Maximum coverage of the workpiece is achieved by the blast wheels being arranged in an “X” alignment, diagonally to the moving workpiece. In this formation, the leading edges of complex components, welded sections, and flame-cut parts can be thoroughly blasted.


  • Proven ORICA® double-disc blast wheels with the inclined layout
  • Various numbers of wheels are possible
  • Latest transport technology
  • Highly efficient blast wheels
  • Short blasting times
  • Multiple machine sizes and variations


Removal of mill and forge scale as well as rust
Blasting of steel constructions as pre-treatment before painting
Removal of burrs and flashes
Increase of surface roughness
Removal of moulding sand and residues

tunnel type auto blasting machine
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tunnel type shot blasting machine
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pass through shot blasting machine

Key Benefits

Latest transport technology

Compact, fully equipped shot blast machine

Short blasting times

Multiple machine sizes and variations

Tunnel Auto Blasting Machine

tunnel type shot blasting machine blasting turbine layout

The workpieces are carried on rotating hooks on the Manually operated monorail or conveyed automatically on a (optional) Power & Free conveyor to the blast cabinet where they are blasted by blast wheels. The blast cycle runs in accordance with the preset blast time. When the blast wheels stop, the door is opened and the hook exits automatically.

The transport speed or index time can be coordinated to the blast wheel power and surface finish required. The system can be easily extended to suit factory layout and integrated with pre-and post-blast operations.

Working Video

Basic Specification

Machine typeBK3-6CBK5-12CBK8-20CBK10-25CBK12-30C
Max. Piece Dia. x Height (mm)300*600500*1200800*20001000*25001200*3000
Max Height of Chamber(mm)47005900670072007700
Max Width of Chamber (mm)42005100590061006300
Max Length of Chamber (kg)5000850085001050010500
No. of Wheels x Power (KW)4x 7.58x7.512x1112x 1112x 11
Total Installed Power(KW)4172143147157
Exhausted Air Quantity (m3/h)600012000180002200025000
Foundation PitYesYesYesYesYes
  • The technical data is not binding and may be subject to change.
  • Depending on the type of parts, production method, etc., further machine types and measurement specification sheets upon request.

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