Boring a stationary part - GIF

[Jon]

Boring a stationary part.




Previously:

1943 giant Betts horizontal boring machine - photos
Horizontal directional boring machine - GIF
Boring a ship's large driveshaft - photo
Turning a tunnel boring machine shield around - GIF
Homemade line boring machine - video
Snake arm robot for inspecting tunnel boring machine - GIF

[that_other_guy]

I would like to know the application.......and the machine!

[Toolmaker51]

I would like to know the application.......and the machine!

The video too brief 'down hole' to be accurately guessed, could be engine cylinder, main bearings, yoke of construction machinery, any of a variety of pumps, infinite range. Near certainly too big or far to haul indoors to a jobber. Can't get a good pause on the label of the rotating head, but one commercial example is called 'Rottler'. Over time many manufacturers, but always called a portable boring bar. Everything is included to mount in place, locate centerline, affix cutters and proceed.

[C Tucker]

I've spent many hours line boring ""stationary" parts, like main bearing bores on big presses. we used a pretty much all shop built hydraulic set up to turn the bar and feed it.

[nova_robotics]

I've spent many hours line boring ""stationary" parts, like main bearing bores on big presses. we used a pretty much all shop built hydraulic set up to turn the bar and feed it.

Yup. Line boring is a big deal, particularly on job sites. We did a few 40-ish foot wide ones last year. They weren't continuous, but there were bushings at each end that had to line up. So we needed a bar that long to go between both bushings. It was on one of the two machines in this video (either foreground or background, not sure which).