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A Series

a71nx Horizontal Machining 4 Axis

a71nx Production Machining Center

 

The a71nx is a 500mm, 50-taper production horizontal machining center. The a71nx shares the key nx family machine technologies that take part productivity, accuracy and machine reliability to the next level.  Robust casting design and large roller-type linear guides ensure that the entire a71nx work envelope can be effectively utilized.




Product Details

The 10,000-rpm high-speed, high-power spindle features 37kW (49.6HP) of duty rated power and 512 Nm (378 ft-lbs) of duty rated torque.  The machines stiffness and rigidity supports thorough utilization of the spindle power and torque to tackle a wide variety of ferrous, non-ferrous and hard metal applications.  Multiple technologies on the a71nx reduce non-cut time, providing benefits in automotive and high volume part production.  Most notably is the standard direct drive NC rotary table. 

The responsiveness of this table eliminates non cut time by reducing 90° indexing time to just 1 second.   The DD NC rotary table also supports Makino’s innovative Inertia Active Control (IAC) system.  IAC monitors B-axis motor load and estimates total fixture weight.  With this information IAC optimizes the motion acceleration and deceleration of the heavily utilized B and Z-axis.  The spindle takes full advantage of the duty rated torque to optimize start / stop responsiveness, leading to 20% reduction in tapping time compared to the previous model. 

A standard Vision type Broken Tool Sensor resides in the ATC magazine where it automatically confirms the condition of drills, taps and other single point tools.  Unique single piece way-cover design, dual-supported tool-change arm and Makino spindle technology provide the foundation for industry-leading reliability.


Standard Specifications

pallet

500 x 500 mm

X Axis

800mm

Y Axis

750mm

Z Axis

830mm

B Axis

360° DD NCRT

Spindle RPM

10,000 rpm

Spindle Taper

BT50 (HSK-100)

Rapid Traverse

(X / Y) 50,000 mm/min,   (Z) 60,000 mm/min

Cutting Feedrate

50,000 mm/min

Maximum Payload

1,000 kg

ATC Capacity

60 (136, 187 & 299)

Tool to Tool

1.7 sec (≤ 20kg)

Chip to Chip

3.6 sec (≤ 20kg)

Maximum Tool Diameter

300 mm

Maximum Tool Weight

30 kg (35 kg opt.)

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