Straightening Machine
Two Roll Precision Straightening Machine RJE Series
As a key machine for bright steel production, RJE series of two roll straightening machines are capable to straighten and polish peeled or cold-drawn long round bars and D/S≤15 thick-walled tubes with diameters between 3 and 160mm. Thes cross-roll vertical machines have one upper concave roll and one convex roll, which are separately driven; therefore, RJE series of two roll straightening machines are capable to machine bars and tubes at a high speed and with accuracy. These machines can be combined with an automatic bundle charging table and discharging table; therefore, bars and tubes can be unbundled, fed, straightened, carried out, and then collected consecutively and automatically.
Advantages
- Optimized concave and convex rolls and linear contact allow full length straightening;
- Constant voltage load control system ensures necessary straightening force and protection in case of overload;
- The speed of major transmission system is infinitely variable, making the speed easy to control and the machine easy to be deployed with other machines with different speeds;
- Roll clearance and angle can be adjusted using an electric/hydraulic-driven closed loop where encoder feedback is used; the adjustment is highly precise and repeatable;
- Roll clearance and angle adjustment is displayed on the touch screen on the console;
- Straightening technical parameters are stored in groups for easy retrieve, reducing time of changing for bars with different specifications;
- Integration of mechanical, electrical, hydraulic and air components and PLC control enable automatic circulation.
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Applications:
Ti and its alloy, and silver, Ta, Nb,and Hf bars and tubes for nuclear power plants.
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Typical Applications of Bright Steel
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Two Roll Precision Straightening Machine RJE Series
| Model |
Dia
(mm) |
Precision （mm/m) |
Machining Speed（m/min） | |
| Standard（AC） | Hi-Speed（DC) | |||
| RJE-12 | 3-12 | 0.1-0.3 | ≤15 | ≤20 |
| RJE-20 | 5-20 | 0.1-0.3 | ≤20 | ≤30 |
| RJE-30 | 8-30 | 0.1-0.3 | ≤30 | ≤60 |
| RJE-40 | 10-40 | 0.1-0.3 | ≤30 | ≤60 |
| RJE-60 | 12-60 | 0.1-0.3 | ≤30 | ≤45 |
| RJE-80 | 15-80 | 0.3 | ≤30 | ≤45 |
| RJE-100 | 20-100 | 0.3 | ≤30 | ≤45 |
| RJE-130 | 50-130 | 0.5 | ≤45 | |
| RJE-160 | 50-160 | 0.5-1 | ≤45 | |