Hot Log Shear Machine
The TRAMAK Hot Log Shear processes a high quality cut as result of its sophisticated design:
- Optimised movements during clamping.
- Special design and strict tolerances of the clamps.
- Low distance between cutting edges.
The function of the hot shear is to cut from the preheated ingot (length: 4 – 8 m) a billet for the extrusion press. The billet length can be chosen in function of the production
Advantages against pre-cut billet:
The plant manager, know using pre-cut billets, should install a hot shear in the future because:
- Raw material (ingot with length 4 -8 m) is much cheaper than pre-cut billet and,
- Billet length can be chosen “just-in-time” so the productivity is higher.
- Greater use of the bar.
Advantages against log saw:
The plant manager, know using log saw, should install a hot shear in the future because:
- Hot shear operates without noise emission at very short cycle times,
- No chips will be produced (material waste) + the log rest can be used as well
- Hot shear, hydraulic powered, is formed by the fixed body and the movable sides, inside of which are mounted the cutting tools. All that is mounted on top of a metallic welded support.
- Special design and strict tolerances of the clamping system that allows having a very clean cut with minimum deformation on the billet end diameter and a flat vertical surface at both ends. The half clamps open/close by help of hydraulic cylinders.
- The Tramak hot shear cut is within a horizontal plane avoiding the need of lifting the cut billet up to the extrusion height.
- Automatic lubrication system for clamps to assure the cut quality.
- Billet rest optimisation program that allows working with two piece billets as if it was a continuous log feeding and minimizing the scrap to zero.
- There are two transfer cylinders of the two cut piece billets. One piece is come back to the logs furnace and the other one is led to the billets feeder.
- Automatic lubrication system for the friction between the moving parts of the machine thus ensuring proper maintenance and a long life of the components.
- Also there is automatic knife/blade nozzle lubrication.
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