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Milling Center Model

Makino a81nx
High Productivity, Large Part, 4-Axis Horizontal Machining Center

‚ÄčThe a81nx is Makino’s next generation 630mm horizontal machining center.  It builds on the industry leading performance of its predecessor with new design elements focusing on the large part, large feature challenges common in many industries. 

The a81nx expands part size capacities through enhanced table and column castings that coupled with an additional 100mm of Y-axis stroke produce 12.5% more work envelope.  Robust 3-roller style B-axis table bearings ensure stable cutting throughout this new found work zone.    Large parts frequently mean large features too.  Tool length, diameter and weight capacities of the a81nx have all increased to support large face mills, boring bars and line bar applications.

Two new spindle designs provide productivity improvements in cutting and non-cutting performance.  The optional 8,000 RPM high torque spindle boosts continuous power levels by 19% over the previous model.  With 50 HP of continuous power, this high torque spindle is ideally suited for heavy roughing of iron castings and hard metal aerospace applications.  Both the 8,000 RPM and standard 10,000 RPM spindles feature significant improvements in acceleration and deceleration that reduce rigid tapping times by up to 30%.

Reliability and ergonomics are clear a81nx design objectives.  Proven technologies like single piece X & Z axis way covers and servo driven ATC shutters, ensure that the a81nx continues the Makino tradition of producing HMC’s with the highest levels of reliability.  The ergonomic focus is easily understood simply by looking at the ATC magazine.  All a81nx ATC magazines include a tool loading station (TLS).  This cam actuation device ejects the tool from the pot into a rail guided tool drawer.  Even maximum weight / diameter tools can be safely and quickly exchanged. 


High Productivity, Large Part, 4-Axis Horizontal Machining Center
Machine Type: Machining Center
Num. of Axes: 4
Work Support: Bed
Column Construction: Single Column Style: Travelling
Operation Type: CNC
CNC Brand: Fanuc / Makino Professional 6
Table Size L x W (in.) 51.200 x 39.400
Max. Workpiece Weight (lbs) 2,645    Opt. 3,307
Pallet Changer Standard No. of Pallet 2
Rotary Table Standard Dual Axis Table: Optional
Num. Main Spindles 1
Orientation Horizontal
Taper #50    Opt. HSK100A
Top RPM 10,000 Opt: 8,000
Horse Power (30 min rating) 50.00
# Speed Ranges 2
Type Fixed
Primary Tool Carrier(s) ATC
Number of Tools 60    Opt. 299
Tool Change Time C-to-C (sec) 3.70   1.70 sec tool-to-tool
Max. Tool Length (in.) 27.200
Max. Tool Diameter (in.) 14.000 (with empty adacent pockets)
Max. Tool Weight 66.00
Number of Axes: 4   U Axis: None
Travel Max Feed Rapid Rate
X1 Std. 35.400 in. 1,969 ipm 1,969 ipm
Y1 Std. 35.400 in. 1,969 ipm 1,969 ipm
Z1 Std. 40.200 in. 1,969 ipm 1,969 ipm
B1 Std. 360.000 deg
Machine Dimensions (l x w x h)(in.) 136 x 197 x 133
Machine Weight (lbs) 46,300
Spindle Nose To Table Edge 37.400
Spindle To Table Center 1.960
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