Nicolás Correa heads incorporate a unique technology that makes them some of the most robust and reliable elements of their kind on the market.
All our heads are mounted and tested in a clean room with a constant temperature in order to guarantee maximum reliability. Moreover, once mounted, all heads are run in on a test bench for 60 hours, during which time the head and spindle are rotated throughout their entire range.
Indexing heads that are ideal for all types of machining operations, including large stock removal, hard materials, long tools and long 3D finishing operations, etc. This technology is applied in two different geometries:
Universal Head at 45º. Compact, robust.
Orthogonal head at 90º. Flexible, easy to program. Can reach negative angles of up to 45º.
Rotation/indexation every 0,02º thanks to the double Hirth coupling patented worldwide
6.000 rpm with no limitations
Adjustable coolant through spindle 17 - 70 bar
Design and fabrication entirely by NCSA. The whole assembly process is monitored by NCSA
Head assembly in a cleanroom with constant temperature 22ºC
Milling head run in the test bench
60 hours performing body & spindle rotations
4+2 bearings in the main spindle
Tool clamping force: 2.500 kg
Hirth couplings locking force: 22.000 kg
The milling head design allows 52 kW – 1.375 Nm in S1
Milling head body made of Casted Steel GGG-50
Maximum coupling repeatability error + - 3”
The bearing´s cages of the main spindle & the external spacers of the secondary axes bearings, are cooled with water
Head with two continuous axes, ideal for machining with 4 or 5 continuous axes, as well as for super finishing operations in 3+2 axes. We offer 3 electro-spindles with different torque-power specifications designed for different applications.
Machining of monolithic aluminium parts for the aeronautic industry.
Machining of dies and moulds for semi-finishing and finishing.
Machining of dies and moulds for high-speed roughing, semi-finishing and finishing.
C axis rotation range, from -200º to +200º Option: -360º to +360º
B axis rotation range, from -110º to +110º
3 electro-spindles can be installed in the E5E Head.
Coolant and/or air trough spindle adjustable from 17 – 70 bar
Design and fabrication entirely by Nicolás Correa. The whole assembly process is monitored by Nicolás Correa
Head assembly in a cleanroom with controlled temperature 22ºC
Maintenance free, lubrication processes automatic
C axis rotation speed: 45 rpm
C axis acceleration: 10 rev / seg2
B axis rotation speed: 25 rpm
B axis acceleration: 10 rev / seg2
C axis working torque: 2200 Nm(Motor-Torque)
C axis torque with brake activated: 4000 Nm
B axis working torque: 2026 Nm (Motor + reducer + gears)
B axis with brake activated: 4000 Nm
Top Class electro-spindle manufacturer Kessler o Fischer
Distance between the nose and the B axis variable according to main bearings temperature.
Ps average error (according to VDI 3441) < 0,001º
Total positioning error P (according to VDI 3441) < 0,002º
B axis encoder located in the final rotating axis.
B axis transmission completely symmetric. Heat generated due to B axis transmission is equally distributed around the milling head.
Range of heads
Nicolás Correa has developed one of the widest ranges of heads on the market. All the heads in our range can be interchanged automatically, thanks to our Automatic Head Change system.
2-Axis Continuous Milling Head · 24,000 rpm
UDX 0,02º x 0,02º
Universal Auto-Indexing Head
High Torque Front Spindle. 4.000 rpm
UAD 0,02º x 0,02º
Universal automatic indexing head · 6.000 rpm
OAD 0,02º x 0,02º
Orthogonal automatic indexing head · 6.000 rpm
FC-30 | 60 | 80
Front spindle · 3.000-4.000 rpm
2 axes contouring geared head · 4.000 rpm
FD-30 | 60 | 80
Non centered Front spindle · 3.000 - 4.000 rpm
Reach-out angle head · 1500 rpm
UT-500 | 630
D’Andrea head · 315 -250 rpm
2 axes contouring head · 12.000 - 24.000 rpm
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