Used portal / gantry milling machines for sale 147

Exapro and Portal/Gantry Milling Machines: Excellence in Used Industrial Machinery

Navigating the vast seas of industrial machinery can be overwhelming. As businesses strive to ensure optimal efficiency and production capabilities, the right machinery becomes the cornerstone of operational success. For professionals in the world of metalworking, Exapro emerges as a beacon of trust and quality, especially when discussing the renowned portal and gantry milling machines.

Understanding Portal/Gantry Milling Machines

Portal and gantry milling machines, at their core, are a type of large-scale machine tool primarily used for precision machining of large components. The main distinction between the two lies in their structure. While both have a flat table where the workpiece is mounted, portal milling machines have a stationary table with a moving overhead structure (the portal) on which the milling head is mounted. Gantry milling machines, conversely, see both the table and the overhead structure (the gantry) move in tandem.

These machines are instrumental in industries such as aerospace, shipbuilding, and energy, handling parts like moulds, dies, and large aerospace structures. Their design inherently provides exceptional stability, precision, and surface quality, thus becoming a go-to choice for professionals who don’t compromise on quality.

Why Choose Exapro for Your Industrial Machinery Needs

Exapro is not just another marketplace; it's a nexus where buyers and sellers of used industrial machinery come together, ensuring that quality, trust, and excellence remain paramount.

Exapro offers a distinct advantage to professionals in the realm of used industrial machinery, especially when it comes to portal and gantry milling machines. By choosing Exapro, buyers and sellers avail the benefit of a comprehensive platform that facilitates a seamless transaction process. Buyers have the opportunity to access a vast inventory of machines, sourced from top-tier manufacturers from around the globe, ensuring that quality isn't compromised even when opting for used equipment. The portal and gantry milling machines available through Exapro span a broad pricing spectrum, with prices ranging from €65,000 to a substantial €360,000.  This range of prices available caters to varying budgetary needs, making top-notch machinery accessible to a broader spectrum of businesses.

On the flip side, sellers benefit from Exapro's widespread reach, tapping into a global network of potential buyers, ensuring that their machinery finds the right buyer in a shorter span. Exapro's robust platform simplifies the selling process, eliminating the usual hassles associated with industrial equipment sales.

The platform's commitment to transparency and integrity ensures that both buyers and sellers can transact with confidence, with the assurance that they're getting optimal value. Exapro stands as the bridge that connects industry professionals to quality portal and gantry milling machines, streamlining the buying and selling process while ensuring utmost satisfaction on both sides. Navigate our extensive listing and let us be your trusted partner in this journey of precision, efficiency, and success.

Main advantages of Portal and Gantry milling machines

Portal and gantry milling machines, integral to large-scale precision machining operations, come with a host of advantages. These benefits make them a prime choice for various industries seeking accuracy and efficiency. Let's delve into the main advantages of these milling machines:

Large-Scale Machining Capability: Portal and gantry milling machines can handle large components, making them invaluable in industries such as aerospace, shipbuilding, and energy. Their substantial table sizes mean that even bulky or elongated parts can be machined with ease.

High Precision and Accuracy: The rigidity and stability of their design ensure that portal and gantry mills produce exceptionally accurate results. This precision is paramount in sectors where even the slightest deviation can compromise an entire project.

Versatility: These machines can be equipped with various heads and tools, allowing them to perform diverse machining operations like milling, drilling, and boring on a single setup. This multi-functionality translates to reduced setup times and streamlined production processes.

Reduced Vibrations: Owing to their sturdy construction and the distribution of weight, these machines tend to produce fewer vibrations during operation. Reduced vibration contributes to better surface finishes and greater machining accuracy.

Long Operational Life: Built for industrial use, these machines are robust and durable. With proper maintenance, they can offer an extended operational life, providing value for money in the long run.

Integrated Technology Options: Modern portal and gantry milling machines often come equipped with advanced technological features, including CNC (Computer Numerical Control) capabilities, automated tool changers, and advanced feedback systems, all of which enhance precision and productivity.

Optimal for Complex Projects: Their ability to handle multifaceted machining tasks in one setup makes them ideal for projects that demand intricate detailing and complex machining paths.

Portal and gantry milling machines are a powerhouse of precision, versatility, and efficiency, making them indispensable assets in the world of large-scale machining. Investing in them is an affirmation of commitment to quality and operational excellence.

Main machine parameters of Portal and Gantry milling machines

Portal and gantry milling machines are designed to handle large and heavy workpieces, and their parameters dictate their capabilities, precision, and operational range. Here are the main machine parameters you'd typically consider:

Table Size and Load Capacity: The dimensions of the table determine the maximum size of the workpiece that the machine can accommodate. Additionally, its load capacity indicates the weight of the workpiece it can support without any risk of damage or reduced precision.

Travel Distances:

• X-Axis Travel: Refers to the longitudinal travel of the table.
• Y-Axis Travel: Indicates the cross travel, or the movement of the gantry.
• Z-Axis Travel: Represents the vertical movement of the milling head.

Spindle Characteristics:

• Spindle Power: Measured in horsepower (HP) or kilowatts (kW), this indicates the motor's strength and, by extension, its capability for heavy-duty milling.
• Spindle Speed: Usually measured in revolutions per minute (RPM), this parameter dictates how fast the tool rotates.
• Spindle Taper: Determines the type and size of tools that can be attached to the spindle.

Feed Rates: The maximum speed at which the machine can move the tool or workpiece in a specific axis. This is typically given for each axis (X, Y, and Z) and can influence the machining time and finish quality.

Tool Changer Capacity: If the machine is equipped with an automatic tool changer (ATC), this parameter indicates how many different tools it can hold and switch between during operation.

Positioning Accuracy and Repeatability: This refers to how accurately the machine can move to a specified point and how consistently it can return to a specific position. It's a key determinant of the machine's precision.

Control System: This pertains to the kind of CNC or computer control the machine uses. Different control systems offer varying capabilities in terms of programming flexibility, memory storage, and user interface.

Number and Type of Guideways: The guideways support and guide the moving parts of the machine. Their design (like box, roller, or linear guideways) can influence the machine's rigidity, accuracy, and lifespan.

Coolant and Chip Management: Features related to the delivery of coolant to the cutting area and the removal and storage of chips and swarf.

Machine Weight and Dimensions: These dictate the floor space required for the machine and can give an indirect measure of the machine's sturdiness and stability.

When considering a portal or gantry milling machine for purchase or operation, understanding these parameters is crucial. They not only provide insights into the machine's capabilities but also help match the machine to the specific requirements of the task or industry.

Area of Use

Portal and gantry milling machines are versatile machining centers, and their large-scale capabilities find use in a range of industries. Their ability to handle substantial workpieces with precision makes them indispensable in various sectors. Here's a rundown of the primary areas of use for these machines:

Aerospace: Given the size of components like wings, fuselages, and other integral parts, portal and gantry milling machines are ideal for machining aerospace parts. Their precision and capacity to handle large, lightweight materials like aluminium and titanium alloys make them invaluable.

Shipbuilding: Ships and marine vessels have massive components that need precise machining. Whether it's propellers, engine parts, or structural components, the large working envelope of portal and gantry machines proves beneficial.

Automotive: These machines are used for producing moulds and dies for car body panels, as well as machining chassis components and other large automotive parts.

Energy Sector: Components for the energy industry, especially wind turbine parts like blades, housings, and gearboxes, require the spacious working area and precision that these machines provide.

Heavy Machinery Manufacturing: Large equipment, such as construction machinery or agricultural implements, have parts that are best machined on portal and gantry milling machines.

Railway: Manufacturing and maintenance of railway components, especially those related to locomotives or track systems, utilise these machines for their sheer size and machining requirements.

Mould and Die Making: Large moulds for plastic, metal, or even glass manufacturing are often machined on portal and gantry mills to ensure precision and surface finish.

Metal Structure Fabrication: For industries that require large, precise metal structures, like bridges or large-scale sculptures, these machines are integral.

Mining: Parts for mining equipment, which often need to be robust and sizeable, are frequently machined on portal and gantry milling centers.

Defence: Military vehicles, weapon systems, and other large defence equipment components are manufactured with the precision and capabilities of portal and gantry machines.

Oil and Gas: Components for drilling rigs, pipeline parts, and other apparatus used in the exploration and processing of oil and gas can be machined using these large-scale milling machines.

It's clear from the above that any industry requiring the machining of large components, where precision cannot be compromised, finds a trusted ally in portal and gantry milling machines. Their adaptability, combined with the sheer scale of their capabilities, places them at the forefront of large-scale machining solutions.

Leading Manufacturers of Portal and Gantry milling machines

Several reputable manufacturers are renowned for producing high-quality portal and gantry milling machines. Each of these manufacturers brings their unique innovations and specializations to the table. Here's a list of some of the leading manufacturers in this domain:

Zimmermann: Known for their high-precision milling solutions, Zimmermann offers a range of portal milling machines tailored for various industries, especially aerospace.

Waldrich Coburg: This German manufacturer is celebrated for its large-scale machine tools, with its portal and gantry milling machines being among the most reliable and efficient in the market.

SNK (Shin Nippon Koki): A Japanese giant in the machine tool sector, SNK produces robust and innovative portal and gantry milling machines that cater to a variety of industrial applications.

FPT Industrie: This Italian manufacturer is recognized for its advanced milling solutions, with its portal and gantry milling machines being particularly favoured for precision tasks.

Soraluce: Renowned for integrating the latest technologies in their products, Soraluce's portal and gantry milling machines are synonymous with quality and reliability.

Mazak: While Mazak is renowned for its wide range of CNC machine tools, they also offer portal and gantry milling machines known for their precision and efficiency.

Okuma: Another significant player from Japan, Okuma offers a series of high-precision portal and gantry milling machines, integrated with advanced control systems.

Giddings & Lewis (Fives Group): With a long history in the machine tool industry, Giddings & Lewis produces robust and reliable portal and gantry milling machines that serve various industries.

Correa: Originating from Spain, Correa has a notable presence in the large-scale milling sector, with their portal and gantry milling machines being acclaimed for their precision and durability.

TOS Kurim: Based in the Czech Republic, TOS Kurim has a legacy of producing robust and efficient portal and gantry milling machines that cater to a broad clientele.

These manufacturers have established themselves through years of innovation, consistent product quality, and an understanding of industry needs. However, when considering a purchase, it's always advisable to carefully assess the specific requirements and reviews of the chosen brand and model.