Engineering solutions
Only if any single element provides optimal performance parameters can a rotary table system be tailored to customer's requirements. The MRT series allows to be equipped with pallet changer systems (to DIN 55201 and customized). Customers can freely chose among servodrive manufacturers, and the housings will be tailored to their current machine concept. Upon request, our tables are supplied together with the hydraulic and cooling systems ready for connection to the relevant machine ports.
In the standard design the mounting comes as an antifriction bearing. But Rückle also offers Hydrostatic bearing for this series. Worm gears, bevel gears, spur gears and torque motors can be used as drive system. The measuring systems are fitted directly onto the table axis for all sizes. As an optional feature, the tables can also be equipped with a Hirth serration which helps compensate extremely high machining forces. Most of the tables can, of course, also be designed as horizontal axis.
Pictures
- MRT 250 with chucking cones (for pallets sized 500 × 500 mm)
- MRT 400 2xs (ø 800 mm, 1,4 t)
- MRT 1250 (2.000 × 2.500 mm, 40 t)
Requirements
Customer requirements essentially determine the characteristic features of a product – this is the motto on which the Rückle group acts. For MRT series up to size 1250, this includes the need of having several table tops and pallet chucking systems within one construction size, a rigid mounting to bear component weights as high as 35 t and tilting moments up to 160 kNm. The drive is required to be reliable and backlash-free to obtain an excellent control performance in positioning and continuous operation. The same applies to high accelerations, even during changes of direction, to enhance machining quality on heavy components.
The locking system shall withstand machining moments as high as 65 kNm; positioning accuracy must be less than +/- 2 arcsec and repeatability less than +/- 1 arcsec.
A center bore for oil manifolds shall transfer the media to the clamping fixture and a flexibly designed housing shall allow the rotary table be accommodated directly in the machine, when necessary; always keeping in mind that accuracies like a lateral runout of 10 μm through ø 1,000 mm and a circular runout of 5 µm through ø 50 mm must be met.
Fact Sheets (Milling tables)
MRT 160
| Table sizes | mm | 320 | 380 |
| Load capacity, vertical rotation axis | kg | 600 |
| Load capacity, horizontal rotation axis 1 | kg | 300 |
Anti-friction mounting |
||
| Bearing diameter | mm | 200 |
| Safe max, tilting Torque up to | Nm | 1,500 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 30 |
| Max. torque S6 up to | Nm | 580 |
| Nominal Speed bis zu | RPM | 400 |
| Nominal torque up to | Nm | 120 |
| Max. speed up to | RPM | 800 |
Locking system |
||
| Tangential Torque up to | Nm | 1,000 |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,01 |
| Truth of running 4 | mm | 0,01 |
MRT 200
| Table sizes | mm | 380 | 460 |
| Load capacity, vertical rotation axis | kg | 800 |
| Load capacity, horizontal rotation axis 1 | kg | 400 |
Anti-friction mounting |
||
| Bearing diameter | mm | 250 |
| Safe max, tilting Torque up to | Nm | 4,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 20 |
| Max. torque S6 up to | Nm | 900 |
| Nominal Speed bis zu | RPM | 200 |
| Nominal torque up to | Nm | 320 |
| Max. speed up to | RPM | 400 |
Locking system |
||
| Tangential Torque up to | ||
Accuracy |
Nm | 1,700 |
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,01 |
| Truth of running 4 | mm | 0,01 |
MRT 250
| Table sizes | mm | 460 | 550 |
| Load capacity, vertical rotation axis | kg | 1,000 |
| Load capacity, horizontal rotation axis 1 | kg | 500 |
Anti-friction mounting |
||
| Bearing diameter | mm | 320 |
| Safe max, tilting Torque up to | Nm | 6,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 20 |
| Max. torque S6 up to | Nm | 1,800 |
| Nominal Speed bis zu | RPM | 100 |
| Nominal torque up to | Nm | 720 |
| Max. speed up to | RPM | 200 |
Locking system |
||
| Tangential Torque up to | ||
Accuracy |
Nm | 2,800 |
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,01 |
| Truth of running 4 | mm | 0,01 |
MRT 320
| Table sizes | mm | 520 | 630 |
| Load capacity, vertical rotation axis | kg | 3,500 |
| Load capacity, horizontal rotation axis 1 | kg | 1,750 |
Anti-friction mounting |
||
| Bearing diameter | mm | 400 |
| Safe max, tilting Torque up to | Nm | 12,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 15 |
| Max. torque S6 up to | Nm | 2,700 |
| Nominal Speed bis zu | RPM | 100 |
| Nominal torque up to | Nm | 1,300 |
| Max. speed up to | RPM | 200 |
Locking system |
||
| Tangential Torque up to | ||
Accuracy |
Nm | 3,500 |
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,01 |
| Truth of running 4 | mm | 0,01 |
MRT 400
| Table sizes | mm | 630 | 800 |
| Load capacity, vertical rotation axis | kg | 4,500 |
| Load capacity, horizontal rotation axis 1 | kg | 2,250 |
Anti-friction mounting |
||
| Bearing diameter | mm | 460 |
| Safe max, tilting Torque up to | Nm | 18,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 15 |
| Max. torque S6 up to | Nm | 3,500 |
| Nominal Speed bis zu | RPM | 75 |
| Nominal torque up to | Nm | 2,000 |
| Max. speed up to | RPM | 150 |
Locking system |
||
| Tangential Torque up to | ||
Accuracy |
Nm | 5,500 |
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,015 |
| Truth of running 4 | mm | 0,01 |
MRT 500
| Table sizes | mm | 650 | 800 | 1,000 |
| Load capacity, vertical rotation axis | kg | 6,000 |
| Load capacity, horizontal rotation axis 1 | kg | 3,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 540 |
| Safe max, tilting Torque up to | Nm | 28,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 15 |
| Max. torque S6 up to | Nm | 4,000 |
| Nominal Speed bis zu | RPM | 40 |
| Nominal torque up to | Nm | 3,000 |
| Max. speed up to | RPM | 75 |
Locking system |
||
| Tangential Torque up to | Nm | 12,000 |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,02 |
| Truth of running 4 | mm | 0,01 |
MRT 650
| Table sizes | mm | 1,000 | 1,200 | 1,400 |
| Load capacity, vertical rotation axis | kg | 10,000 |
| Load capacity, horizontal rotation axis 1 | kg | 5,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 670 |
| Safe max, tilting Torque up to | Nm | 40,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 10 |
| Max. torque S6 up to | Nm | 8,000 |
| Nominal Speed bis zu | RPM | 40 |
| Nominal torque up to | Nm | 3,000 |
| Max. speed up to | RPM | 75 |
Locking system |
||
| Tangential Torque up to | Nm | 20,000 |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,02 |
| Truth of running 4 | mm | 0,01 |
MRT 800
| Table sizes | mm | 1,200 | 1,400 | 1,600 |
| Load capacity, vertical rotation axis | kg | 15,000 |
| Load capacity, horizontal rotation axis 1 | kg | 7,500 |
Anti-friction mounting |
||
| Bearing diameter | mm | 760 |
| Safe max, tilting Torque up to | Nm | 60,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 8 |
| Max. torque S6 up to | Nm | 10,500 |
| Nominal Speed bis zu | RPM | 20 |
| Nominal torque up to | Nm | 6,500 |
| Max. speed up to | RPM | 40 |
Locking system |
||
| Tangential Torque up to | Nm | 25,000 |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,02 |
| Truth of running 4 | mm | 0,01 |
MRT 1000
| Table sizes | mm | 1,400 | 1,600 | 1,800 |
| Load capacity, vertical rotation axis | kg | 25,000 |
| Load capacity, horizontal rotation axis 1 | kg | 12,500 |
Anti-friction mounting |
||
| Bearing diameter | mm | 980 |
| Safe max, tilting Torque up to | Nm | 90,000 |
Drive 2 |
||
| Max. speed S6 up to | RPM | 7 |
| Max. torque S6 up to | Nm | 13,500 |
| Nominal Speed bis zu | RPM | 10 |
| Nominal torque up to | Nm | 10,000 |
| Max. speed up to | RPM | 20 |
Locking system |
||
| Tangential Torque up to | Nm | 30,000 |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |
| Lateral runout | mm | 0,025 |
| Truth of running 4 | mm | 0,01 |
MRT 1250
| Table sizes | mm | 1,600 | 2,000 | 2,500 |
| Load capacity, vertical rotation axis | kg | 35,000 |— |
| Load capacity, horizontal rotation axis 1 | kg | 17,500 |— |
Anti-friction mounting |
||
| Bearing diameter | mm | 1,250 |
| Safe max, tilting Torque up to | Nm | 120,000 |— |
Drive 2 |
||
| Max. speed S6 up to | RPM | 6 |
| Max. torque S6 up to | Nm | 15,500 |
| Nominal Speed bis zu | RPM | — |
| Nominal torque up to | Nm | — |
| Max. speed up to | RPM | — |
Locking system |
||
| Tangential Torque up to | Nm | 35,000 |— |
Accuracy |
||
| Dividing accuracy 3 | arcsec | +/- 2 |— |
| Lateral runout | mm | 0,03 |— |
| Truth of running 4 | mm | 0,01 | — |
Notes (Milling tables)
By drive
• worm gear
• torque-motor
• the same value for both drive systems
1 Load capacity without counter-bearing
2 Drive data are not associated one with another; they will be customized according to the application.
3 Depending on the measuring system
4 Hub centering
Further information and customized modifications on request.
Technical data are subject to change.
Swiveling tables
Swiveling tables consist of a combined turn and swivel unit. Elements from MRT series matching with customer's requirements are put together to build the turning and swivel axes. The units may be integrated into machines or come as linear motion slides which perfectly match the customer's machine bed.
Splendidly harmonized with the actual machine configuration the turn and swivel units feature optimal workpiece chucking systems and machining zones. These axes can, of course, also be combined with pallet changer systems and linear axes.
Fact Sheets (Swiveling tables)
MRT 200 2xs
| Table sizes | mm | 320 | 460 |
| Max. centric load capacity up to | kg | 400 |
Anti-friction mounting |
||
| Bearing diameter | mm | 200|250 |
| Safe max, tilting Torque up to | Nm | —|2,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 15|20 |
| Max. torque S6 up to | Nm | 800|600 |
Locking system |
||
| Tangential Torque up to | Nm | 5,000|1,900 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,01 |
| Truth of running 3 | mm | —|0,01 |
MRT 250 2xs
| Table sizes | mm | 460 | 500 |
| Max. centric load capacity up to | kg | 600 |
Anti-friction mounting |
||
| Bearing diameter | mm | 250|320 |
| Safe max, tilting Torque up to | Nm | —|5,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 15|20 |
| Max. torque S6 up to | Nm | 3,000|2,000 |
Locking system |
||
| Tangential Torque up to | Nm | 6,000|3,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,01 |
| Truth of running 3 | mm | —|0,01 |
MRT 320 2xs
| Table sizes | mm | 520 | 630 |
| Max. centric load capacity up to | kg | 1,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 320|400 |
| Safe max, tilting Torque up to | Nm | |8,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 15|15 |
| Max. torque S6 up to | Nm | 4,500|2,700 |
Locking system |
||
| Tangential Torque up to | Nm | 8,000|4,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,01 |
| Truth of running 3 | mm | —|0,01 |
MRT 400 2xs
| Table sizes | mm | 630 | 800 |
| Max. centric load capacity up to | kg | 1,400 |
Anti-friction mounting |
||
| Bearing diameter | mm | 400|460 |
| Safe max, tilting Torque up to | Nm | —|10,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 10|15 |
| Max. torque S6 up to | Nm | 5,500|3,500 |
Locking system |
||
| Tangential Torque up to | Nm | 10,000|5,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,015 |
| Truth of running 3 | mm | —|0,01 |
MRT 500 2xs
| Table sizes | mm | 800 | 900 | 1,000 |
| Max. centric load capacity up to | kg | 2,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 460|540 |
| Safe max, tilting Torque up to | Nm | —|13,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 10|15 |
| Max. torque S6 up to | Nm | 6,200|4,000 |
Locking system |
||
| Tangential Torque up to | Nm | 13,000|8,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,02 |
| Truth of running 3 | mm | —|0,01 |
MRT 650 2xs
| Table sizes | mm | 800 | 1,000 | 1,200 |
| Max. centric load capacity up to | kg | 3,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 540|670 |
| Safe max, tilting Torque up to | Nm | —|16,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 5|10 |
| Max. torque S6 up to | Nm | 12,000|8,000 |
Locking system |
||
| Tangential Torque up to | Nm | 20,000|15,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,02 |
| Truth of running 3 | mm | —|0,01 |
MRT 800 2xs
| Table sizes | mm | 1,200 | 1,400 | 1,600 |
| Max. centric load capacity up to | kg | 4,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 670|760 |
| Safe max, tilting Torque up to | Nm | —|20,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 5|5 |
| Max. torque S6 up to | Nm | 20,000|10,500 |
Locking system |
||
| Tangential Torque up to | Nm | 30,000|20,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,02 |
| Truth of running 3 | mm | —|0,01 |
MRT 1000 2xs
| Table sizes | mm | 1,600 | 1,800 | 2,000 |
| Max. centric load capacity up to | kg | 8,000 |
Anti-friction mounting |
||
| Bearing diameter | mm | 760|980 |
| Safe max, tilting Torque up to | Nm | —|30,000 |
Drive system (gear) 1 |
||
| Max. speed S6 up to | RPM | 5|5 |
| Max. torque S6 up to | Nm | 30,000|13,500 |
Locking system |
||
| Tangential Torque up to | Nm | 35,000|25,000 |
Accuracy |
||
| Dividing accuracy 2 | arcsec | +/- 2 |
| Lateral runout | mm | —|0,03 |
| Truth of running 3 | mm | —|0,01 |
Notes (Swiveling tables)
By drive
• swiveling axis
• turning axis
• the same value for both axes
1 Drive data are not associated one with another; they will be customized according to the application.
2 Depending on the measuring system
3 Hub centering
Further information and customized modifications on request.
Technical data are subject to change.
