The Mackma RB40i ring roller machine is a small-sized professional hydraulic machine. It has three motorized rollers and a 6 ton central roller thrust. The digital display is simple and easy to use, and the noise level is almost zero at less than 70 db. In this hydraulic version, the positioning of the central roller takes place at a precision hydraulic movement. The peculiarity of this bending machine is the easy tilting that allows to work comfortably vertically or horizontally.
Main technical data
| CentralRoll Force | 6 Ton |
| Distance Between Shafts | – |
| Shaft Diameter Top | 35 mm |
| Shaft Diameter Bottom | 35 mm |
| Roller Diameter Top | 137 mm |
| Roller Diameter Bottom | 137 mm |
| Speed | 7 m/min |
| Motor | 1,1 Kw |
| Voltage | 400 V 50Hz |
| Operating Position | Vert./Hor. |
| Posit.Centre Roll | Hydraulic with joystick |
| Antitwist Side-Rollers | Manual |
| Display | Digital |
| Number of Programs | – |
| Activation | joystick |
| Noise Level | < 70 db |
| Dimensions | 1050x500x1250h |
| Weight | 350 kg |
BENDING PERFORMANCES PROFILE TYPE STANDARD
| PROFILE TYPE | MAX CAPACITY mm | MIN Ø mm |
 |
18 x 18 | 250 |
 |
35 x 8 | 300 |
 |
50 x 12 | 400 |
 |
35 x 35 x 5 | 400 |
 |
30 x 30 x 5 | 300 |
 |
35 x 35 x 5 | 300 |
BENDING PERFORMANCES PROFILE TYPE OPTIONAL
| PROFILE TYPE | MAX CAPACITY mm | MIN Ø mm |
 |
25 x 25 x 2 | 450 |
 |
30 x 15 x 2,5 | 500 |
 |
Ø 22 | 200 |
 |
Ø 33,7″ X 2,3 | 400
200 |
 |
Ø 40 X 1,5 | 500 |
 |
35 x 35 x 5 | 400 |
 |
30 X 30 X 4 | 550 |
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