This unit is for de-flashing or bead-blasting parts at cryogenic temperatures. The chamber sits and rotates at an angle. This is a fairly sophisticated system. It is under PLC (Programmable Logic Controller) control with a color touch screen HMI (Human Machine Interface) see on the left in the image above. Essentially all the panels hinge open for service access. The control section is on the left and that hole section hinges open for access to the left end of the blasting chamber and fan area.
This unit comes with a collection of 6 different fan impellers and a few other spare parts. We assume different impellers are used to get different bead-blasting characteristics, as determined by the job to be done.
The image above shows the back of this unit. The chamber toward the camera collects excess bead blasting media.
The image below shows the chamber lid opened up, revealing the parts drum.
The parts drum in shown above, sitting on the floor. We don't know what the parts in it are.
The image below is looking down into the chamber where the parts drum goes. Beads are blown into the opening of the drum from the slot on the left. The drum is rotated by the mechanism on the right that engages and disengages on command. The bead feed auger is shown at the bottom of the image.
The color touch-screen control panel is shown above. It could obviously use a little cleanup, as could the whole unit.
The left side control section with the cover swung open is shown in the image above. This system is controlled with an Allen Bradley AB PLC controller. The touch-screen HMI panel is seen at the upper right with the PLC modules just below and to the left. Motor speed controls are near the bottom. The motor sitting in the bottom is believed to be the blower fan motor--a universals brush type motor that would allow for a wide speed control range with lots of power in a small package.
An overall view of the PLC controller is shown below. There is room for two more I/O modules. It contains a main module AB # 1746-P1, 16 input module 1746-IA16, a 16 relay output module 1746-OW16, a 4 input thermocouple module 1746-NT4 and a power analog output module 1746-NOV4.
The image above is a close-up view of the back of the color touch-screen HMI control panel.
The image below is a close-up of the Allen-Bradley SLC 500 Analog Output Module 1746-NO4V
The blower mounts in the rectangular hole in the image above. Its drive motor mounts to the left where the cooling fan blows on it. These "missing" parts are included.
The image below shows how the control sections un-latches and swings away for access to the section above.
The image below shows the right end of the unit with the access panel swung open. The upper variable speed gear motor drives the parts drum. The air cylinder below the gear box engages the drum drive dogs. The lower variable speed gear motor drives the bead feed auger.
The chamber lid lift and lock-down latches are also air-cylinder driven under computer control.
Great for a facility
that needs to do cryogenic de-flashing or beadblasting of small to medium sized
parts. Condition looks good used, in need of some
maintenance. It is not clear if it was taken down for repair or just
routine blower change-out. This bid is for as-is, untested condition but
we can provide the unit in operating condition for an additional fee. Sold as-is. What you see is what you get. We are in the Desert Southwest so items may need dusting/cleaning when they arrive.
Most items generally have some degree of cosmetic scuffing, scratches, etc. from
use, storage, handling and transportation. May also have the remains/residue of
inventory tags that we did not get cleaned off.
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