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GD16C2 and GD3J2 Gear-Driven Rotary Tables

GD16C2 and GD3J2 Gear-Driven Rotary Tables
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GD16C2 and GD3J2 Gear-Driven Rotary Tables

Product catalog summary
Overview: The document provides a comprehensive overview of 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) designs allow for quick changes between various workholding devices, enhancing precision and capability.
  • Product Range: Includes gear-driven rotary indexers, low-profile rotary tables, and tilting dual-axis rotary indexers, with options for single, dual, triple, and quad configurations.
  • Accuracy and Speed: Offers accuracy to ±15 arc-sec and repeatability to ±5 arc-sec, with rapid indexing speeds up to 360° per second.
  • Manufacturing Quality: Products are manufactured in Elmira, New York, adhering to strict specifications, ensuring reliability and durability.
Technical Specifications:
  • Spindle: Features a robust, dual-bearing spindle for heavy radial and axial loads, with a maximum runout of .0002" (0.005mm TIR).
  • Control and Programming: All-digital indexer control with USB capability, supporting RS-232 interface and multiple program storage.
  • Interfacing Options: Supports integration as a true 4th-axis with CNC machines, with options for RS-232 and CNC interface cable connections.
Advantages of Hardinge Spindle Design:
  • Direct collet seating in the spindle minimizes overhang and maximizes rigidity and gripping power.
  • Eliminates the need for collet adapters, reducing errors and improving T.I.R.
Product Evolution: Traces the development of Hardinge's rotary systems from the 1940s to the introduction of the next-generation 5C2 Rotary System in 2007, highlighting continuous improvements in mechanical design and control systems.
Workholding Capacities: Details the capacities for various collets, step chucks, and fixture plates, emphasizing the flexibility in handling different part sizes and shapes.
Conclusion: Hardinge's rotary products offer a versatile and precise solution for machining applications, with a focus on flexibility, ease of integration, and high-quality manufacturing standards.
Specifications:
  • Spindle Types: A2-5, A2-4, and 5C spindles are used, accepting standard collets, expanding collets, step chucks, and power chucks.
  • Indexing Speed: Up to 300° per second with ±5 arc-sec repeatability and ±15 arc-sec accuracy.
  • Runout: Maximum runout (TIR) is 0.0002" (0.005mm).
  • Load Support: Dual-bearing spindles support heavy axial and radial loads.
  • Dimensions: Various dimensions are provided for different models, with detailed measurements in both inches and millimeters.
Standard Features:
  • Robust dual-bearing spindles for heavy loads.
  • Pneumatic collet closers with significant draw bar pull.
  • Spindle clamp to prevent slippage during heavy off-center drilling.
  • Capability for spiral, arc, and linear milling.
Options:
  • 5C adapter for small part processing.
  • Tailstocks, plate, and cube trunnions.
  • Complete array of Hardinge spindle tooling.
Indexer Control and Programming:
  • Enhanced indexer control with storage for 9999 programs/steps.
  • RS-232 interface and USB 2.0 for upload/download.
  • Text display with multiple lines and a baud rate capacity of 19.2 BPS.
Operating Specifications:
  • Gear ratio of 60:1 or 90:1 depending on the model.
  • Operating temperature up to 120°F (49°C).
  • Power requirements of 115 VAC ± 5% at 10 amps.
  • Air pressure requirements between 85 psi and 100 psi.
Workholding Capacities:
  • Collets, step chucks, and fixture plates with various maximum capacities.
  • 3-jaw chucks available in different diameters.
  • Sure-Grip® expanding collets and slotted face plates for enhanced part gripping.
Conclusion: Hardinge's rotary indexers and tables are engineered for precision, reliability, and versatility, suitable for a wide range of machining applications. They offer robust features and options to accommodate various industrial needs.
Indexer Control Features: Key features include automatic circle division, continuous rotation, fast setups, and programmable parameters. The control supports both brush and brushless indexers, with a multi-line display for ease of use. It offers extensive program storage and editing capabilities, along with RS-232 interface for computer control.
Collet Closers: Various types of collet closers are described, including manual, pneumatic fail-safe, and high-force options. Each type is designed for specific operational needs, with features like spring-close mechanisms and dual cylinders for increased force.
Tailstock Options: The document details manual and pneumatic tailstocks, highlighting 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, including their dimensions and compatibility with different rotary devices. The document also covers fixture plates and expanding collet systems, emphasizing their versatility in holding various workpieces.
Additional Features: The document mentions optional features like pillow block clamps and rotary unions for enhanced functionality. It also discusses cable management options and the compatibility of rotary devices with different components.
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, available in various sizes and configurations.
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.
FlexC™ Vulcanized Collet Systems: These systems feature A2-5 spindle mount style with .0004" concentricity, available in round, hex, square, and emergency styles. They accommodate stock variation with a gripping range of ±.020.
Tailstocks and Inspection Fixtures: The SB-4 Sub-Base with tailstocks can be used as a bench center. The L-4 Tailstock features a lever-operated spindle, while the T-4 Tailstock has a screw-fed spindle. Both are designed for precision and flexibility in various machine setups.
Manual Indexers: Manual index fixtures are used for holding workpieces and performing indexing operations. They accept standard 5C collets, step chucks, expanding collets, and manual jaw chucks. Various spindle nose options and index plates are available.
Company Overview: Hardinge Group has diversified its product offerings globally, with operations in North America, Europe, and Asia. It is a leader in grinding solutions and manufactures a range of industrial products for material cutting, automation, and workholding needs.
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Catalog excerpts

GD16C2 and GD3J2 Gear-Driven Rotary Tables-1

Rotary Tables AOTAM Indexers TURNING MILLING GRINDING WORKHOLDING ROTARY

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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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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GD16C2 and GD3J2 Gear-Driven Rotary Tables-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.