You'll like this simple new big bale "saw" that attaches to any front-end loader with double-acting lift cylinders.
Developed in Sweden, the "Silosplit" knife mounts on a rectangular frame that attaches to front end loader arms in place of a bucket. The upper edge of the Silosplit is rounded so it can be used to pick up and transport bales and is also equipped with a second small stabilizer tine that keeps the bale from turning when handled.
To split a bale, you simply position the knife above the bale and press it straight down into the bale using the double-acting lift cylinders on the loader.
You can buy the Silosplit or just the Silosplit knife to fit in place of an existing bale spear you may already own.