Makino Horizontal Machining Centers (HMC)

Makino a61nx

$500,000 – $700,000 Updated 2026-03-17

Key Specifications

X Travel

730 mm (28.7 in)

Y Travel

650 mm (25.6 in); 730 mm (28.7 in) with tall column

Z Travel

800 mm (31.5 in)

Max Spindle

14,000 RPM (20,000 RPM optional)

Spindle Taper

CAT40 (HSK-A63 opt)

Tool Capacity

60 tools (optional 133, 218, 313)

Overview

The Makino a61nx is a production-grade 500 mm horizontal machining center widely regarded as one of the strongest performers in its class for rigidity, surface finish, and metal removal rates. Designed as the larger sibling to the a51nx, the a61nx shares the same robust casting design philosophy but scales up with more travel and pallet capacity. Work envelope covers 730 x 650 x 800 mm on X/Y/Z with 500 x 500 mm pallets — an optional tall column extends Y-axis to 730 mm for taller workpieces.

The standard spindle runs 14,000 RPM with 22 kW continuous power and 240 Nm duty-rated torque on an HSK-A63 taper. An upgraded version increases torque to 303 Nm for higher metal removal rates on ferrous materials, and a 20,000 RPM option targets high-speed aluminum production. Makino's core-cooled spindle design maintains thermal stability across extended production runs — the spindle quality on Makino HMCs is consistently cited as best-in-class among production machinists and aerospace buyers.

Axis acceleration reaches 1G across all linear axes via enhanced servo motors and Makino's cross-roller guide design. The direct-drive B-axis table eliminates the backlash and wear of worm-gear alternatives, providing faster indexing and sustained long-term positional accuracy. The 60-tool ATC with IAC (Inertia Active Control) technology dynamically optimizes ring acceleration based on tool weight for faster average tool seek times.

The a61nx runs on Makino's Professional 6 (Pro 6) control with an operator-focused interface designed to reduce setup complexity and errors. Makino's MMC2 multi-pallet automation system integrates directly for scaling into lights-out production. New a61nx machines price $500,000–$700,000 configured. Used units from 2013–2020 trade between $175,000 and $400,000. Specs sourced from Makino published data.

Full Specifications

Parameter	Value
X-Axis Travel	730 mm (28.7 in)
Y-Axis Travel	650 mm (25.6 in); 730 mm (28.7 in) with tall column
Z-Axis Travel	800 mm (31.5 in)
Pallet Size	500 x 500 mm (19.7 x 19.7 in)
Max Workpiece Size	ø800 x 1,000 mm (ø31.5 x 39.4 in)
Max Work Weight	550 kg (1,212 lb)
Max Spindle Speed	14,000 RPM (20,000 RPM optional)
Spindle Taper	CAT40 (HSK-A63 opt)
Spindle Motor Power	22 kW (30 hp) continuous
Spindle Torque	240 Nm (177 ft-lb) duty-rated; 303 Nm (224 ft-lb) upgraded version
Rapid Traverse Rate	2,362ipm
Axis Acceleration	1G on all linear axes
Table Type	Direct-drive B-axis, 360° continuous
Tool Capacity	60 tools (optional 133, 218, 313)
Tool Change Time	1.5 sec chip-to-chip
Positioning Accuracy	±0.002 mm (±0.00008 in)
Repeatability	±0.001 mm (±0.00004 in)
Machine Weight	12,200 kg (26,900 lb)
CNC Control	Makino Professional 6 (Pro 6)
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Metric	English
Pallet	19.7" x 19.7"
B Axis	360° DD NCRT
Spindle Rpm	14,000 rpm (20K)
Cutting Feedrate	1,968 ipm
Maximum Workpiece	ø31.5" x 39.4"
Maximum Payload	1,100 lbs (option 1,540 lbs)
Tool To Tool	0.9 sec
Chip To Chip	2.5 sec
Maximum Tool Diameter	8.1"
Maximum Tool Weight	26.4 lbs

Specifications sourced from makino.com — verified 2026-03-28

Strengths & Limitations

Strengths

Core-cooled 14,000 RPM HSK-A63 spindle delivers exceptional thermal stability and surface finish consistency across long production runs — widely cited as best-in-class
Cross-roller guide design provides higher rigidity than standard linear guides, maintaining accuracy at the extremes of travel under full cutting load
Direct-drive B-axis eliminates backlash and wear associated with worm-gear tables, providing faster indexing and sustained long-term positional accuracy
1G axis acceleration with IAC tool magazine technology minimizes non-cutting time for best-in-class cycle time performance
303 Nm torque upgrade gives the a61nx strong metal removal in ferrous materials while retaining 14,000 RPM capability for aluminum
HSK-A63 taper provides better rigidity and repeatability than CAT40 at high speeds, with faster tool change and more consistent runout

Limitations

Premium pricing at $500K–$700K new is 30–40% more than comparable Mazak HCN-5000 or Okuma MB-5000H configurations
650 mm standard Y-axis travel is shorter than some competitors; the tall column option for more Z-reach adds cost
60-tool standard ATC doesn't scale to the 200–348 tool capacities available on some competitors without adding external automation
Makino's dealer network is smaller than Mazak or Okuma in some North American regions, which can affect service response times
Pro 6 control is Makino-proprietary — shops standardized on Fanuc or MAZATROL face a learning curve and can't share programs directly

Best For

Aerospace production machining where spindle quality and surface finish consistency directly impact part acceptance rates on tight-tolerance aluminum and titanium Automotive and powertrain component production where 1G acceleration and fast tool changes drive per-part cycle time down Die and mold shops requiring the best possible surface finish from an HMC, reducing or eliminating hand finishing on critical cavity surfaces High-value component production where the cost of a scrapped part justifies the premium investment in machine accuracy and repeatability Production environments scaling into MMC2 multi-pallet automation for lights-out operation on high-value, tight-tolerance work

Frequently Asked Questions

01 What does a new Makino a61nx cost?

New a61nx machines typically price between $500,000 and $700,000. The base machine with standard spindle and 60-tool ATC starts around $500,000. Adding the 303 Nm torque spindle, tall column, high-pressure coolant, probing, and MMC2 automation pushes toward $700,000+. Used a61nx units from 2013–2020 trade between $175,000 and $400,000.

02 How does the a61nx compare to the Makino a51nx?

The a61nx has more Z-axis travel (800 vs 560 mm), higher pallet load capacity (550 vs 400 kg), and a more powerful spindle option (303 Nm vs 240 Nm). The a51nx has a smaller footprint and lower price. Both share Makino's core-cooled spindle technology and cross-roller guide design. Choose the a51nx for smaller parts where you don't need the extra travel; choose the a61nx when Z-reach, pallet capacity, or spindle power matter.

03 Why does the a61nx cost significantly more than competing HMCs?

You're paying for Makino's core-cooled spindle (best-in-class thermal stability), cross-roller guides (more rigid than standard linear guides), and overall build quality. For shops where surface finish drives downstream costs — less hand finishing, higher acceptance rates on precision parts — the premium pays back. For general production work where surface finish isn't critical, a Mazak or Okuma delivers 85–90% of the capability at 60–70% of the price.

04 What is the MMC2 automation system?

MMC2 (Makino Machining Complex 2) is Makino's multi-pallet automation platform that connects one or more HMCs to a linear pallet stocker. It provides pallet queuing, scheduling, and management for lights-out production. Systems typically range from 8 to 60+ pallets with multiple loading stations. The MAS-A5 cell controller manages job scheduling, tool life, and machine utilization reporting.

05 What is the difference between HSK-A63 and CAT40 tooling interfaces?

HSK-A63 is a hollow-taper interface that provides simultaneous face and taper contact, resulting in higher rigidity and better runout consistency than CAT40's taper-only contact. HSK also delivers faster tool change times and better performance at high spindle speeds. The trade-off is higher tooling cost — HSK holders run roughly 20–30% more than equivalent CAT40. Most shops switching to HSK see measurable improvements in surface finish and tool life.