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GD5C2 Gear-Driven Indexer Systems

GD5C2 Gear-Driven Indexer Systems
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GD5C2 Gear-Driven Indexer Systems

Product catalog summary
Overview: The document provides comprehensive details on Hardinge's rotary tables, indexers, and trunnions, emphasizing their flexibility, accuracy, and integration capabilities. It highlights the quick-change workholding concept and compatibility of spindle tooling between rotary systems and lathes.
Key Features:
  • Spindle nose designs A2-4 (5C) and A2-5 (16C) allow quick changes between workholding devices, enhancing precision.
  • Rotary products offer accuracy to ±15 arc-sec and repeatability to ±5 arc-sec, with robust construction for heavy loads.
  • All-digital indexer control with USB capability for program uploads/downloads.
Product Range:
  • 5C2 Gear-Driven Rotary Indexers: Available in single, dual, triple, and quad configurations.
  • 16C2 and 3J2 Gear-Driven Rotary Indexers: Similar configurations as 5C2.
  • Low-Profile Rotary Tables: GD160LP and GD210LP models.
  • Tilting Dual-Axis Rotary Indexers: Single and multi-spindle options.
Technical Specifications:
  • Spindle runout maximum (TIR) is 0.0002" (0.005mm).
  • Backlash is 40 arc-sec, with a speed range of 0.001 to 360° per second.
  • Maximum RPM is 60, with a load support of up to 50 lb (23 kg) per spindle.
  • Operating temperature up to 120°F (49°C) and power requirements of 115 VAC.
Manufacturing and Quality:
  • Products are manufactured in Elmira, New York, adhering to strict specifications for worldwide export.
  • Quality manufacturing processes include precision machining and thorough inspection to ensure accuracy and reliability.
Integration and Control:
  • Rotary systems can be integrated as a true 4th-axis with CNC machines, supporting various control systems like Fanuc, Siemens, and Heidenhain.
  • Indexing can be managed via RS-232 port or CNC interface cable, allowing for flexible program storage and execution.
Advantages of Hardinge Spindle Design:
  • Direct collet seating in the spindle minimizes overhang and maximizes rigidity and gripping power.
  • Quick changeover capabilities and compatibility with a wide variety of workholding devices.
Conclusion: Hardinge's rotary products offer a comprehensive solution for precision machining, focusing on flexibility, accuracy, and ease of integration into existing CNC systems. The robust design and quality manufacturing ensure reliable performance across various applications.
Specifications:
  • Spindle Types: A2-5 and A2-4 spindles are used, accepting standard collets, expanding collets, step chucks, and power chucks.
  • Indexing Speed: Rapid indexing speed up to 300° per second with ±5 arc-sec repeatability and ±15 arc-sec accuracy.
  • Runout and Backlash: Maximum runout (TIR) is 0.0002" (0.005mm) with a backlash of 40 arc-sec.
  • Load Support: Dual-bearing spindles support heavy axial and radial loads, with maximum part weights of 150 lb (68 kg) for GD16C2 and 100 lb (45 kg) for GD160LP.
  • Motor and Torque: DC servo motors provide clamping torque up to 275 ft-lb (373 Nm) and spindle torque up to 90 ft-lb (122 Nm).
Features:
  • Collet Systems: The devices support a variety of collet systems, including 16C, 3J, and 5C, with options for expanding collets and step chucks.
  • Control and Programming: Enhanced indexer control models offer storage for up to 9999 programs/steps, RS-232 interface, USB 2.0 upload/download, and a baud rate capacity of 19.2 BPS.
  • Operating Specifications: The devices operate at a maximum ambient temperature of 120°F (49°C) with power requirements of 115 VAC ± 5% at 10 amps.
  • Configurations: Available in single, dual, triple, and quad spindle configurations, with options for pneumatic collet closers and tailstocks.
Applications: These rotary indexers and tables are suitable for spiral, arc, and linear milling, as well as standard indexing operations. They are engineered to support heavy loads and high-force cutting applications while maintaining accuracy over a long life.
Options and Accessories: A range of accessories is available, including 5C adapters for small part processing, tailstocks, plate and cube trunnions, and a complete array of Hardinge spindle tooling.
Indexer Control Features: Key features include automatic circle division, continuous rotation, fast setups, and programmable parameters. The indexer supports both brush and brushless motors, with a nonvolatile memory for program retention. It offers RS-232 interface for computer control and supports up to 9999 programs.
Collet Closers: Various types of collet closers are described, including manual, pneumatic fail-safe, and high-force options. Each type is designed for specific force requirements and operational conditions, with some models supporting through-hole coolant and long parts.
Tailstock Options: The document details manual and pneumatic tailstocks, emphasizing their use for additional support in machining operations. Features include Morse taper spindles and riser plates for height adjustments.
Trunnions and Fixture Plates: Information on plate and cube trunnions is provided, highlighting their use for multiple part processing and compatibility with different rotary devices. Fixture plates and step chucks are also discussed for holding various workpiece types.
Additional Features: The document mentions optional features like pillow block clamps and rotary unions for enhanced functionality. It also covers cable management options and the Sure-Grip Expanding Collet Systems for improved workholding capabilities.
Step Chucks and Collets: Step chucks are designed to apply full capacity at specific depths, with extra-depth options available. They require a step chuck closer for rotating spindle applications, enhancing gripping power and accuracy. Emergency step chucks come with pin holes for precision machining. Hardened and ground collets are made from special alloy steel, offering a wide range of sizes and shapes, including round, hex, rectangular, square, and emergency collets.
Spindle Adapters and Face Plates: The 16C-to-5C spindle adapter mounts on an A2-5 spindle. Slotted face plates are precision ground to fit all rotary units, with various sizes available for different applications.
Sure-Grip® 3-Jaw Power Chucks: These chucks are lever-operated, counter-centrifugal, and dynamically balanced, offering a mechanical advantage over wedge-style chucks. They provide accuracy and repeatability up to .0005" for 4" to 8" chucks.
Manual Jaw Chucks and FlexC™ Collet Systems: Manual jaw chucks are available in various sizes and styles, including 3-jaw and 4-jaw options. FlexC collet systems offer a gripping range to accommodate stock variation, with concentricity of .0004".
Tailstocks and Inspection Fixtures: Tailstocks like the SB-4 Sub-Base and L-4 Tailstock offer features such as hardened spindles and position locks. Manual index fixtures provide a cost-effective means of holding workpieces for indexing operations.
Company Overview: Hardinge Group is a globally diversified company with operations in North America, Europe, and Asia. It specializes in turning centers, collets, grinding solutions, and machining centers, offering precision and reliability for increased productivity.
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Catalog excerpts

GD5C2 Gear-Driven Indexer Systems-1

Rotary Tables AOTAM Indexers TURNING MILLING GRINDING WORKHOLDING ROTARY

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GD5C2 Gear-Driven Indexer Systems-2

Hardinge Rotary Products More Accuracy, Speed and Flexibility! The Most Flexible Quick-Change Workholding Concept in the Market… Hardinge’s A2-4 (5C) and A2-5 (16C) spindle nose designs allow quick change between collets, expanding collets, step chucks, 3-jaw chucks and face plates. Common spindle tooling can be shared between the Hardinge Rotary System(s) and a lathe. The gripping is in the spindle, closest to the spindle bearings, unlike surface-mounted adapters used on traditional rotary tables. Multiple workholding options provide alternate gripping solutions for increased precision and capability....

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GD5C2 Gear-Driven Indexer Systems-3

Hardinge has a large selection of rotary products for all ranges of production. Choose from precision, single-spindle, multi-spindle and dual-axis configurations… 5C2 Gear-Driven Rotary Indexers GD5C2 single GD5C2-02 dual GD5C2-03 triple GD5C2-04 quad • Accuracy to ±15 Arc-Sec • Repeatability to ±5 Arc-Sec • Rugged and reliable • Flexibility of workholding tooling • Fast changeover • Heavy axial and radial load capacity 16C2 and 3J2 Gear-Driven Rotary Indexers GD16C2 and GD3J2 single GD16C2-02 and GD3J2-02 dual GD16C2-03 and GD3J2-03 triple 160 and 210mm Low-Profile Rotary Tables GD160LP GD210LP...

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GD5C2 Gear-Driven Indexer Systems-4

Quality Manufacturing Processes Hardinge's GD5C2 has higher accuracy, more spindle clearance and more thrust and radial load. All rotary products are manufactured in Elmira, New York to strict specifications. Curved front casting and removable handle for increased spindle clearance and better tool access. Robust, dual-bearing spindle for heavier radial and axial loads. 50-lb (23kg) part weight and 1000-lb (4448N) tailstock thrust per spindle is not a problem – even on a quad unit with tailstocks! ±5 arc-sec Repeatability ±25 arc-sec Accuracy .0002" Max. Runout (.005mm TIR) Hardinge next-generation...

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GD5C2 Gear-Driven Indexer Systems-5

Productivity Features Hardinge Collet-Ready Spindles provide the most Flexible Rotary Products in the industry! Hardinge rotary systems accept many styles of standard tooling without an adapter, which is unique in the industry. You can purchase a complete system all tooled up and ready to run your parts. Rely on the spindle tooling experts for the accuracy and repeatability to get the job done. All-digital Indexer Control with USB capability Hardinge indexer controls have USB capability for convenient upload or download of programs from a Windows-based Pocket PC. Hardinge manufactures 5C Rotary...

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GD5C2 Gear-Driven Indexer Systems-6

Fourth-Axis Integration GD160LP Rotary mounted in a Bridgeport® vertical machining center machining six sides of the part. Spiral milling application on a Bridgeport knee mill using a 5C2 indexer and manual tailstock.

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GD5C2 Gear-Driven Indexer Systems-7

Advantages of the Hardinge Spindle • Collet seats directly in the Hardinge spindle • Minimum overhang from the spindle bearings assures that spindle accuracy is transferred directly to the workpiece • Maximum rigidity and gripping power transferred to the part • Minimum weight on spindle • Optimum T.I.R. GD160LP • Gripping force directly over the workpiece • Superior tolerances and finishes • Quick changeover— collet draw tube is easily and accurately adjusted from the back of the spindle • Ability to use a wide variety of workholding devices 3-jaw chucks, collets, quick-change collets, step...

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GD5C2 Gear-Driven Indexer Systems-8

Disadvantages of other Rotary Spindle Designs Hardinge Spindle Design – no collet adapter required Minimal distance from spindle bearings to tool tip Other Rotary Spindle Design – collet adapter required Other spindle designs require the use of a collet adapter creating an extreme overhang from the spindle bearings. Any error in the spindle is multiplied by the overhang distance. Excessive overhang from spindle bearings Collet Collet adapter This spindle design: • Is not rigid • Is not easily adjusted • Creates poor T.I.R. • Reduces the work envelope • Creates excessive overhang • Does not allow...

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GD5C2 Gear-Driven Indexer Systems-9

Interfacing to a Host Machine True 4th-Axis* via the host machine (gear-driven) Hardinge gear-driven rotary systems may be connected directly to the host machine and its CNC control. Connecting to the machine's CNC control requires replacing the standard servo motor and cable with a servo motor and cable that is compatible with the host CNC. If the machine is not 4th-axis ready, the machine will need a 4th-axis option and servo amplifier installed. Hardinge has integrated its rotary products with Fanuc, Siemens, Heidenhain, Okuma and Milltronics. Other systems can be supported with the assistance...

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GD5C2 Gear-Driven Indexer Systems-10

The 5C2 Rotary System is based on a long history of Hardinge 5C spindle and manual indexer designs. Over 60 years of Hardinge-engineered and proven mechanical elements guarantee an accurate, repeatable, reliable and flexible product. INDEXER CONTROL / PROGRAMMING Indexer Control Model Standard Indexer Control Storage - Number of programs/steps RS-232 Interface multiple lines Baud Rate Capacity SPINDLE Runout Maximum (TIR) Standard Features • Curved front casting and removable handle for increased spindle clearance and better tool access • Rapid indexing speed up to 360° per second • ±5 arc-sec...

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GD5C2 Gear-Driven Indexer Systems-11

Workholding Capacities Collets – Round (max. capacity) 11/16" (26.98) 29 Collets – Hex (max. capacity) /32" (23.01) 3 Collets – Square (max. capacity) /4" (19.05) Step Chucks – Regular Depth up to 6" (152.4) Step Chucks – Extra Depth up to 6" (152.4) 3-Jaw Chuck 5" (127) 3-Jaw Chuck 6" (152.4) Sure-Grip® Expanding Collets 1/8" - 3" (3.17 - 76.2) Fixture Plate – Spindle Mount 3" (76.2) Fixture Plate – Spindle Mount 5" (127) Fixture Plate – Collet Style 33/8" (85.72) Fixture Plate – Collet Style 43/8" (111.12) Slotted Face Plate (diameter) 7" (178) Collet Stops for part positioning YES Side View...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.