- Joined
- Jan 29, 2017
- Messages
- 311
Ok, thanks for clarifying that.
Mate of mine is a boilermaker, bought an old Macson back in 2007. Only needed it for turning large flanges for water pipework. Chuck is about 900mm in diameter and bed is about 3m between centers. Gap bed also, Old and worn, the shears taper because feeding in to the chuck I can get a great finish, If I reverse feed on the fly the carriage rocks over and starts taking another cut outwards. No amount of adjustment would minimise this as feeding out would progressively tighten the adjusting pads against the shears and you would start to hear the motor load up through the gear train. No more out feeding on that one. Max speed 300rpm, min speed 7rpm. Weighs about 8 tons and the biggest flange I've turned on it was 1400mm x 85mm thick. 10" square toolpost on it too. Very solid machine.
Mate of mine is a boilermaker, bought an old Macson back in 2007. Only needed it for turning large flanges for water pipework. Chuck is about 900mm in diameter and bed is about 3m between centers. Gap bed also, Old and worn, the shears taper because feeding in to the chuck I can get a great finish, If I reverse feed on the fly the carriage rocks over and starts taking another cut outwards. No amount of adjustment would minimise this as feeding out would progressively tighten the adjusting pads against the shears and you would start to hear the motor load up through the gear train. No more out feeding on that one. Max speed 300rpm, min speed 7rpm. Weighs about 8 tons and the biggest flange I've turned on it was 1400mm x 85mm thick. 10" square toolpost on it too. Very solid machine.