Continuous overhead conveyor - type "Y"

Blast wheel systems of this type are called in the German "Y" suspension track or in the English "H" (hook), because the workpieces to be blasted are suspended, clusters-like or individually hung on the so-called hangers and the guide rail has a Y-geometry. These hangers are attached to rotating hooks that can be transported along an overhead rail. A rotation within the machine exposes the entire surface of the work piece to the continuous blast of the centrifugal wheels. The work cycle is as follows:

Workpieces are loaded onto the hangers outside the machine. Loading can be done manually or by means of an electric chain hoist mounted on the carriage.

The hangers loaded with workpieces are then transported to the entrance of the blasting chamber either manually or with the help of an electric trolley.

From this point on, a transport and rotating device takes over the transport trolley with the hanger and automatically pulls it into the system while rotating.

As soon as the workpieces have reached the blasting position, the door must be closed (manually or automatically) so that the blasting room is protected against dust.

As soon as the blast turbine starts, the door is locked. From this point the automatic blasting process begins.

During the blasting cycle, the hanger rotates continuously and is automatically transported to a second preset blasting position. This is necessary in order to optimally blast all component surfaces of the suspended workpieces. The amount of blasting media is set and controlled by an electro-pneumatic regulated valve.

From there it arrives at the center of the centrifugal wheel, from where it is fed through the distributor to the centrifugal wheel blades. The rotation of these blades spins the blasting media onto the components to be cleaned or deburred.

The mixture of blasting media, burrs, sand deposits, tinder and/or other impurities ends up in the lower part of the machine (system hopper).

From there it is transported to the bucket elevator by longitudinal and transverse screw conveyors or a vibrating screen. (The vibrating screen separates the abrasive from larger impurities) From here the mixture is transported up to the abrasive preparation (air sifting). (If steel blasting media have to be separated from cast sand, a special magnetic separator is also used)

The air separation separates dust and impurities from the clean and reusable blasting media . The waste is conveyed into a downpipe, which discharges the impurities from the closed circuit. The clean blasting media is continuously fed into the silos.

From there it is returned to the blasting wheels via the control valve, which closes the blasting media cycle.

The extraction of dust from the blasting chamber and from the abrasive preparation is carried out by a central exhaust air and filter system.

As soon as the work cycle is finished, the door opens (with manual doors a visual and acoustic signal sounds that the door can be opened) and the hanger is automatically transported to the entrance of the steel chamber.

From there, the hanger must be transported to the unloading position (manually or automatically depending on the type of conveyor belt)

Machine type

CH6x10

CH9x14

CH12x18.5

CH15x20

CH20x22

CH20x25

 

CH20x30

CH (2x) 20x30

 

Max. working √ė [mm]

600

    900

  1200

  1500

  2000

  2000

 

    2000

  2000

 

Max. working height [mm]

1000

   1400

   1850 

   2000

  2200

  2500

 

    3000

  3000

 

Max. hook load [kg]

350

     350

   1000

   1500

  2000

  2500

 

    2500

  2500

 

Power of the turbine [ kW ]

 2x4

   3x4 3x5.5 3x7.5
  
  

  3x11 3x15 3x22
 
 

 3x18.5

 3x22

  4x30

 

    4x30

  2x4x30

 

Magnetic separator

 Yes

     *

      *

     *

     *

     *

 

    *

*

 

* optional

 

 

 

 

 

 

 

 

 

 

OPTIONS

Frequency control of blasting wheels
Electric control valves for program-specific blasting media dosing
Magnetic separator in the blasting media preparation

Automatic blasting media replenishment
Blow off fan for blasting media  removal
Centrifugal wheels made of Carbide
Protective device in the blasting chamber of carbide instead of manganese steel

Ablation

Paint stripping

Rust removal

Descaling

Roughening

Solidifying /
shot peening

Desanding

Smoothing

Finishing

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