It is the radial distance from spindle center to bed guide ways so that it can be turned with out fouling bed and it is termed as swing over bed. If it is a gap bed machine then another swing specification termed as swing over gap. Another swing specification is swing over cross slide. This specification become important while machining a job in between centers.
The swing of a lathe can be increased if the gap-bed section is removed, providing the lathe has this option and the workpiece is not longer than the gap when clamped in the chuck.
The lathe is Specified on the basis on the following factors: 1.Lathe swing or simply swing i.e maximum diameter of the workpiece that can be machined. 2.Maximum distance between the HEadstock and tailstock. 3.Length of the bed. then there are many kinds of lathe categorized by their specific functions or mechanisms but these are the general specifications for every lathe.
A lathe that measures 6 inches from the center of the spindle to the closest part of the bed is considered a lathe with a 12 inch swing.
The bed of a lathe is the central beam that runs down the machine. The head, which holds and turns the workpiece, is fixed at one end, there is a tailstock at the other end which can be adjusted along the bed, and usually a carraige in between, which holds turning tools. The workpiece that can be turned in the lathe is limited to what will fit in the head without hitting the bed. A gap bed lathe has a gap in the bed near the head, so a larger workpiece can be turned.
The two factors that determine the size of a lathe are the "swing" and "distance between centers". The swing of a lathe is the length measured from the center of the hollow spindle or chuck to the nearest part of the bed multiplied by two. Distance between centers is the distance measured between the chuck and tail stock.
The swing of a lathe can be increased if the gap-bed section is removed, providing the lathe has this option and the workpiece is not longer than the gap when clamped in the chuck.
swing
The lathe is Specified on the basis on the following factors: 1.Lathe swing or simply swing i.e maximum diameter of the workpiece that can be machined. 2.Maximum distance between the HEadstock and tailstock. 3.Length of the bed. then there are many kinds of lathe categorized by their specific functions or mechanisms but these are the general specifications for every lathe.
A lathe that measures 6 inches from the center of the spindle to the closest part of the bed is considered a lathe with a 12 inch swing.
The bed of a lathe is the central beam that runs down the machine. The head, which holds and turns the workpiece, is fixed at one end, there is a tailstock at the other end which can be adjusted along the bed, and usually a carraige in between, which holds turning tools. The workpiece that can be turned in the lathe is limited to what will fit in the head without hitting the bed. A gap bed lathe has a gap in the bed near the head, so a larger workpiece can be turned.
The two factors that determine the size of a lathe are the "swing" and "distance between centers". The swing of a lathe is the length measured from the center of the hollow spindle or chuck to the nearest part of the bed multiplied by two. Distance between centers is the distance measured between the chuck and tail stock.
the size of a lathe can be described by either of the following ways. 1.DISTANCE BETWEEN THE TWO DEAD CENTERS. 2.SWING RADIUS. IT'S THE DISTANCE MEASURED FROM THE SADDLE/CARRIAGE TO THE AXIS OF THE SPINDLE.
Lathe specifications· Distance between centers· Swing over the bed· Swing over the cross slide· Horse power of the motor· Number of speeds
The bed of a lathe is the central beam that runs down the machine. The head, which holds and turns the workpiece, is fixed at one end, there is a tailstock at the other end which can be adjusted along the bed, and usually a carraige in between, which holds turning tools. The workpiece that can be turned in the lathe is limited to what will fit in the head without hitting the bed. A gap bed lathe has a gap in the bed near the head, so a larger workpiece can be turned.
the size of a lathe can be described by either of the following ways. 1.DISTANCE BETWEEN THE TWO SPINDLES. 2.SWING DIAMETER.ITS THE DISTANCE MEASURED FROM THE SADDLE/CARRIAGE TO THE CENTRE OF THE SPINDLE.
Lathes can be a small as 40mm swing x 100mm between centers and up to 4.8m swing x 38m bed. There might even be smaller or bigger lathes in existence though.
The biggest lathe in the world belongs to ESCOM South Africa and was made by Waldrich-Siegen. It has a swing of 4.78 meters, a 38 meter bed, a workpiece weight of 330 tons and the machine weight is 458,6 tons.