TUN 13x17 spinner hanger shot blast tunnel with eight 40 HP blast wheels for iron castings
This video shows a CYM TUN 13x17 shot blast tunnel with eight 40 HP blast wheels and parts hanging on hooks, designed to remove sand from and clean castings. It is the machine that processes Victoria cast iron cookware at the Mecánicos Unidos plant in Itagüí, Colombia.
The overhead conveyor carries 14 hooks rated for up to 1,000 kg (2,200 lb) each, which enter the cabinet two at a time. Inside, each hook spins on its axis and stops at three positions in front of the blast wheels, so the blast reaches the whole part. Parts can be up to 1.3 m (51 in) in diameter and 1.7 m (67 in) high.
The machine runs G40 steel grit, which cleans fast but wears equipment much more than steel shot. That is why the cabinet has a double lining, with a manganese steel base and high-chrome plates, and the blast wheels have double walls. Each part family has its own recipe on the HMI, which sets the blast wheel speed, the abrasive load and the blast direction. Dust is captured by a CART 36 C collector.
In 2025 the tunnel was processing 43 gross metric tons a day, according to Andrés Mejía Cardona, owner and CEO of Mecánicos Unidos.
Chapters
- TUN 13x17 tunnel – 8 blast wheels, 40 HP: hook loading for castings
- Work stations, overhead conveyor and two hooks at a time
- HMI and double internal lining
- 8 blast wheels: adjustable speed, vibration sensor and control cage
- Abrasive flow valve and abrasive recirculation
- Abrasive cleaning, automatic curtain and magnetic separator
- Dust collector, electrical panel and remote access
- Blasted parts
Transcript
0:02 Shot blast tunnel · TUN 13x17 – 8 blast wheels, 40 HP
0:08 Suspended hook loading · For castings
0:16 Loading and unloading area
0:20 4 consecutive work stations
0:30 Overhead conveyor
0:36 Processes 2 hooks at a time
0:58 Double internal lining · Base: manganese steel · Main: high-chrome steel
1:14 8 blast wheels
1:18 Adjustable blast wheel speed
1:22 Vibration sensor
1:28 Control cage · Electronic positioning adjustment
1:40 Abrasive flow valve · Electronic amperage control
1:50 Abrasive recirculation system
2:04 Abrasive cleaning system
2:06 Automatic abrasive curtain adjustment
2:10 Airflow monitoring
2:12 Magnetic sand separator
2:20 Abrasive recirculation valve
2:28 Dust collector
2:34 Cartridge saturation monitoring
2:36 Electrical panel
2:40 eWON for remote access
2:44 Distributed PLC input and output modules
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