Grinder Capabilities: Weldon’s Altaira 1-Meter Capacity OD Grinder

Today’s grinding operations require equipment that can accommodate larger components without sacrificing precision, reliability, or process versatility. The Weldon Altaira CNC cylindrical grinder was developed to meet these demands, providing exceptional performance for complex OD grinding applications on workpieces up to 1 meter (40 inches) long and a maximum weight of 600 pounds.

Engineered for industries working with carbide, ceramics, aerospace alloys, energy-sector materials, and other challenging substrates, the Altaira integrates advanced CNC controls, a robust machine platform, and flexible grinding capabilities into a highly efficient production solution.

DESIGNED FOR LARGE WORKPIECES AND ADVANCED GRINDING REQUIREMENTS

The Weldon Altaira CNC cylindrical grinder is purpose-built for manufacturers processing larger parts while maintaining the tight tolerances and superior surface finishes demanded by modern production environments.

Available with either a straight or angular wheelhead configuration (factory configured), the Altaira performs outside diameter grinding, shoulder grinding, and facing operations within a single setup. This streamlined approach minimizes part handling, enhances repeatability, and improves throughput.

Powered by a FANUC CNC control system, the machine supports sophisticated form grinding operations, including tapers, radii, contours, and custom profiles using form-dressed wheels or profiling methods. When configured appropriately, the Altaira also excels in high-speed peel grinding applications with CBN superabrasives, enabling aggressive material removal while maintaining exceptional accuracy.

For manufacturers seeking greater flexibility, an optional programmable C-axis can be incorporated to perform non-round grinding operations, extending the machine’s functionality beyond conventional cylindrical grinding.

BUILT FOR DURABILITY AND LONG-TERM PERFORMANCE

The Altaira is engineered with long-term reliability and precision in mind. Both rotary and linear motion systems are fully protected from airborne contaminants, ensuring dependable performance in abrasive carbide and ceramic grinding applications where machine protection is essential.

At the core of the machine is Weldon’s proven Shear Damper base technology. Constructed with steel shear tubes encapsulated within a proprietary resin system, the base provides outstanding rigidity, vibration absorption, and thermal stability. This design contributes to superior grinding accuracy, improved surface quality, and consistent dimensional performance over time.

Additional design features include:

Cross-roller linear guide systems with recirculating bearings, precision-ground rails, and integrated sealing protection
Compact compound slide architecture that maximizes rigidity while minimizing floor space requirements
High-performance Z-axis linear motor technology paired with either an application-specific X-axis linear motor or precision ballscrew drive
Stainless-steel telescoping way covers for enhanced protection in demanding grinding environments
CNC-monitored automatic lubrication system with integrated fault detection safeguards

Together, these features deliver the stability, accuracy, and reliability required for continuous production operations.

ADVANCED CNC CONTROL AND MOTION TECHNOLOGY

The Altaira utilizes the FANUC 0i-TF Plus CNC control platform, equipped with a full-color LCD interface and FANUC AC digital servo technology. A battery-backed absolute feedback system eliminates the need for axis referencing during startup, helping reduce setup time and maximize machine availability.

The machine’s heavy-duty live spindle workhead incorporates a 6-inch A2 spindle nose, #5 Morse taper center, 4.7-inch spindle diameter, and a quad arrangement of angular-contact bearings to provide exceptional rigidity and accuracy under demanding grinding conditions.

Additional performance-enhancing features include:

Variable-speed wheel drive with CNC-controlled dynamic braking
Constant surface speed capability to maintain consistent grinding conditions as wheel diameter changes
Hydraulically actuated heavy-duty tailstock featuring a #5 Morse taper center and manual taper adjustment
Full machine enclosure with convenient operator access and service panels for improved safety and maintenance accessibility

These integrated technologies provide precise process control and dependable grinding performance across a wide range of applications.

CUSTOMIZABLE TO YOUR PRODUCTION NEEDS

The Weldon Altaira platform can be configured with numerous options to address a broad spectrum of grinding requirements.

Available enhancements include:

Turret based wheelhead for complex grinding applications with numerous operations within a single setup. Multiple spindle combinations with straight OD spindles, angled OD spindles, and ID spindles are available.
Expanded 24-inch swing capacity for larger diameter workpieces and faceplate applications
In-process gaging systems for automatic dimensional control and process consistency
Renishaw probe-based automatic locating systems for improved setup efficiency
Acoustic emission monitoring for gap elimination, touch dressing, crash protection, and process verification
Programmable gear-driven workheads with rotary scale feedback for advanced non-round grinding applications
Electric rotary dressing systems for efficient superabrasive wheel conditioning and extended diamond tool life
Comprehensive coolant delivery and filtration systems, including magnetic, fabric, cyclonic, pressure, and hybrid filtration technologies
CBN grinding packages optimized for peel grinding and multi-plunge grinding applications
Extensive workholding solutions, including manual and power chucks, collet systems, magnetic faceplates, vacuum chucks, expanding arbors, pitch-line chucks, and application-specific fixtures

To further improve productivity, the Altaira can be integrated with FANUC six-axis robotic automation systems, providing a complete turnkey solution for high-volume manufacturing environments.

A POWERFUL GRINDING SOLUTION FOR MODERN MANUFACTURING

The Weldon Altaira CNC cylindrical grinder combines large-part capacity, advanced control technology, rugged construction, and application versatility into a high-performance grinding platform designed for demanding production environments.

Whether performing precision OD grinding, complex form grinding, high-speed peel grinding, or specialized non-round operations, the Altaira delivers the accuracy, reliability, and flexibility manufacturers require to stay competitive.

For companies seeking a CNC grinding solution capable of handling larger workpieces while maintaining exceptional process consistency and dimensional accuracy, the Weldon Altaira provides the durability and performance necessary to meet today’s most demanding grinding challenges.

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Contact us today to learn how the Weldon Altaira CNC cylindrical grinder can help support your current and future manufacturing goals.

Here you can find more information on the Altaira OD grinder and case studies.

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Weldon CNC Industrial Grinders
Robotic Automation capabilities