USED MAKINO A51NX – 2011

The MAKINO A51NX – 2011 is a world-class horizontal machining center designed for manufacturers that require maximum productivity, precision, and reliability in demanding production environments. As the next-generation evolution of Makino’s highly successful A-Series horizontal machining centers, the A51NX was engineered to deliver faster cycle times, improved machining accuracy, enhanced thermal stability, and greater automation capabilities than previous models.

Built around Makino’s advanced machine tool technology, the A51NX utilizes a horizontal spindle configuration that provides significant productivity advantages. Chips naturally fall away from the cutting zone during machining, reducing heat buildup, improving tool life, and maintaining consistent cutting conditions. This design allows manufacturers to run longer production cycles while achieving superior surface finishes and dimensional accuracy.

The machine features a rigid cast iron structure, high-performance roller guideways, and advanced servo systems that deliver exceptional positioning accuracy and repeatability. Its compact footprint makes efficient use of valuable floor space while providing the performance expected from a premium production machining center. The A51NX was specifically developed to support lean manufacturing environments where spindle uptime, process reliability, and throughput are critical to profitability.

A major advantage of the A51NX is its dual-pallet automatic pallet changer. This system enables operators to load and unload workpieces while machining continues on the active pallet, significantly reducing idle time and maximizing machine utilization. Combined with rapid tool changes, high-speed spindle performance, and advanced control technology, the machine is capable of delivering outstanding productivity across a wide range of applications.

The A51NX is commonly used in automotive manufacturing, aerospace production, hydraulic component machining, medical equipment manufacturing, industrial machinery production, energy sector manufacturing, and precision contract machining. Typical workpieces include transmission housings, valve bodies, pump housings, engine components, gearbox cases, hydraulic manifolds, and other complex multi-sided components.

The 2011 MAKINO A51NX remains one of the most respected horizontal machining centers available in the used CNC market because it combines premium build quality, exceptional reliability, and proven production performance.

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MAKINO A51NX – AXIS

Specification	Value
Number of Axes	4 Axis
Axis Configuration	X, Y, Z, B
Machine Type	Horizontal Machining Center
B-Axis Indexing	0.001°
Simultaneous Machining	3+1 Axis
Guideway Type	Roller Linear Guides

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MAKINO A51NX – AXIS TRAVELS / WORK ENVELOPE

Specification	Value
X-Axis Travel	22 in
Y-Axis Travel	25.2 in
Z-Axis Travel	25.2 in
B-Axis Rotation	360°
Rapid Traverse Rate	2,362 IPM
Positioning Accuracy	±0.00012 in

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MAKINO A51NX – CAPACITY / TABLE

Specification	Value
Pallet Size	15.75 in x 15.75 in
Number of Pallets	2
Maximum Pallet Load	880 lbs
Maximum Workpiece Diameter	24.8 in
Maximum Workpiece Height	35.4 in
Pallet Change System	Automatic

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MAKINO A51NX – SPINDLE

Specification	Value
Maximum Spindle Speed	14,000 RPM
Spindle Power	30 HP
Spindle Taper	CAT 40
Spindle Type	Direct Drive
Through-Spindle Coolant	Available
Spindle Cooling	Integrated

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MAKINO A51NX – TOOL CHANGER

Specification	Value
Tool Capacity	60 Tools
Optional Capacity	118 Tools
Tool Change Type	Automatic
Tool-to-Tool Time	0.9 Seconds
Tool Selection	Random Access
Tool Magazine Type	Chain Magazine

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MAKINO A51NX – CONTROL SYSTEM

Specification	Value
CNC Control	Makino Professional 5
Ethernet Connectivity	Standard
USB Connectivity	Available
Macro Programming	Supported
Network Integration	Supported
Advanced Look-Ahead	Standard

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MAKINO A51NX – COOLANT / DUST / WATER MANAGEMENT

Specification	Value
Flood Coolant System	Standard
Through-Spindle Coolant	Available
High-Pressure Coolant	Optional
Chip Conveyor	Standard
Coolant Filtration	Integrated
Automatic Chip Removal	Standard

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MAKINO A51NX – POWER REQUIREMENTS

Specification	Value
Electrical Supply	220V – 480V
Phase	3 Phase
Frequency	50/60 Hz
Connected Load	Approx. 55 kVA

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MAKINO A51NX – DIMENSIONS

Specification	Value
Machine Length	Approx. 160 in
Machine Width	Approx. 105 in
Machine Height	Approx. 110 in
Machine Weight	Approx. 20,000 lbs

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MAKINO A51NX – GENERAL INFORMATION

Specification	Value
Manufacturer	Makino
Model	A51NX
Year	2011
Machine Category	Horizontal Machining Center
Control System	Makino Professional 5
Construction	Heavy-Duty Cast Iron
Typical Materials	Steel, Aluminum, Stainless Steel, Cast Iron
Production Type	Medium to High-Volume Manufacturing

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INDUSTRIES THAT USE MAKINO A51NX

• Automotive Manufacturing
• Aerospace Manufacturing
• Defense Manufacturing
• Medical Equipment Manufacturing
• Hydraulic Equipment Manufacturing
• Energy Equipment Manufacturing
• Industrial Machinery Manufacturing
• Agricultural Equipment Manufacturing
• Electronics Manufacturing
• Precision Contract Machining

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TYPICAL PARTS MAKINO A51NX CAN PRODUCE

• Transmission Housings
• Valve Bodies
• Hydraulic Manifolds
• Pump Housings
• Engine Components
• Gearbox Cases
• Aerospace Structural Components
• Medical Device Parts
• Industrial Equipment Components
• Precision Castings
• Automotive Components
• Multi-Sided Production Parts

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WHY CHOOSE MAKINO A51NX

The MAKINO A51NX is widely recognized as one of the most productive and reliable 400mm pallet horizontal machining centers ever built. Designed specifically for high-volume production environments, the machine combines exceptional machining speed with outstanding precision and long-term durability.

One of the machine’s greatest strengths is its ability to maximize spindle utilization. The dual-pallet changer allows setup activities to occur while machining continues on the active pallet, dramatically reducing downtime. In production environments, this capability can significantly increase throughput without requiring additional labor or equipment.

The machine’s rigid construction and advanced spindle design provide outstanding machining performance across a wide range of materials. Whether roughing steel components or finishing precision aluminum parts, the A51NX delivers excellent surface finishes and repeatable dimensional accuracy. The direct-drive spindle and high-speed servo systems help reduce cycle times while maintaining consistent part quality.

Another important advantage is Makino’s reputation for reliability. Many A51NX machines continue operating productively for years with minimal downtime. The machine’s robust mechanical systems and premium engineering help support long service life and lower ownership costs.

The Makino Professional 5 control system offers advanced programming functionality, powerful processing capability, and user-friendly operation. Combined with the machine’s automation readiness and proven production performance, the A51NX remains an excellent choice for manufacturers seeking maximum productivity and long-term value.

For companies looking to improve efficiency, increase throughput, and maintain exceptional machining quality, the MAKINO A51NX continues to be one of the best horizontal machining centers available.

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WHY BUY USED MAKINO A51NX

Purchasing a used MAKINO A51NX provides manufacturers with access to premium horizontal machining technology at a significantly lower investment than purchasing a comparable new machine. Because Makino machines are known throughout the industry for exceptional build quality and reliability, the A51NX remains highly desirable in the used CNC market.

One of the biggest advantages is cost efficiency. A used A51NX often delivers production performance comparable to many newer machines while costing substantially less. The resulting savings can be invested in tooling, fixturing, automation systems, quality control equipment, or additional machining capacity.

The machine’s reputation for durability further enhances its value proposition. Built with high-quality components and engineered for demanding production environments, properly maintained A51NX machines can continue operating efficiently for many years. This reduces ownership risk and supports strong long-term value.

Availability is another major benefit. New horizontal machining centers often involve long lead times due to manufacturing schedules and market demand. Used A51NX machines are frequently available for immediate purchase and installation, allowing manufacturers to respond quickly to increased production requirements.

Many used machines also include desirable factory-installed options such as through-spindle coolant, expanded tool magazines, probing systems, chip management upgrades, and automation interfaces. Purchasing these features as part of a used machine package often provides substantial cost savings.

For manufacturers seeking a proven production platform that combines reliability, productivity, and value, a used MAKINO A51NX represents an outstanding investment opportunity.

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HOW MUCH DOES A USED MAKINO A51NX COST?

The value of a used MAKINO A51NX depends on machine condition, spindle hours, maintenance records, tooling packages, installed options, and overall market demand. Because the A51NX is widely recognized as a premium production machining center, it generally maintains strong resale value compared to many competing platforms.

Machine condition is usually the most important factor affecting price. Machines with documented maintenance histories, lower spindle hours, and excellent mechanical condition typically command premium pricing. Buyers often place significant value on comprehensive service records because they provide confidence regarding future reliability and operating costs.

Installed options can substantially influence market value. Features such as through-spindle coolant, high-pressure coolant systems, expanded tool magazines, probing packages, automation interfaces, pallet management systems, and advanced software options can significantly increase pricing. These upgrades improve productivity and reduce future capital expenditures.

Demand from automotive, aerospace, defense, medical, hydraulic, and industrial equipment manufacturers also supports strong market pricing. Companies continue seeking high-quality horizontal machining centers capable of supporting production machining applications with minimal downtime.

Additional ownership costs such as transportation, rigging, installation, tooling, electrical infrastructure, and operator training should also be considered when evaluating a purchase. These costs contribute to the overall investment required to place the machine into production.

In today’s used CNC machinery market, a 2011 MAKINO A51NX typically sells within a range of approximately $60,000 to $150,000, depending on machine condition, spindle hours, tooling inventory, installed options, maintenance history, and overall configuration. Machines equipped with expanded tooling, through-spindle coolant, and documented service records generally command prices toward the upper end of the range.

For manufacturers seeking a premium horizontal machining center that delivers exceptional reliability, productivity, and long-term value, the MAKINO A51NX remains one of the strongest investments available in the used CNC marketplace.