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Microcentric
Air Chuck Catalog

Air Chuck Catalog

Product catalog summary

Overview: MicroCentric provides high precision air chucks designed for precision workholding with an accuracy of .00005" TIR. These chucks enhance productivity and reduce costs in secondary machining operations by maintaining high concentricity, reducing scrap rates, and extending tool life.

Specifications: The air chucks come in various models with standard accuracy of .00005" TIR, with higher accuracy models available. They offer radial and lateral runout control and are available in sizes ranging from 3 to 10 inches in diameter.

Design and Features: The air chucks feature a sliding jaw, self-contained mechanism, and can be actuated manually or electronically. Clamping force is adjustable via air pressure. They are double-acting for both ID and OD applications and constructed with a meehanite chuck body and hardened steel components for durability and precision.

Types of Air Chucks:

Rotating Air Chucks: Suitable for precision turning and cylindrical grinding, available in sizes from 3 to 10 inches.
Stationary Air Chucks: Ideal for milling, drilling, and other applications, available in sizes from 3 to 10 inches.
Long Stroke Air Chucks: Feature extended jaw opening for a range of diameters, available in sizes from 4 to 10 inches.
HST High Speed Air Chucks: Made with a titanium body for low mass and inertia, maintaining clamping force at high speeds up to 10,000 rpm.
Sealed Air Chucks: Designed to prevent contamination and reduce maintenance, available in sizes from 3 to 6 inches.
Large Diameter Air Chucks: For machining large precision workpieces, available in sizes from 12 to 20 inches.

Options and Accessories: Options include precision located top jaw systems (QC), ultra-precision models (UP), auto-lube systems (AL), and back-ported designs (BP). Accessories include air tube assemblies, air controls, blank top jaws, and lubricants.

Applications: These air chucks are suitable for turning, grinding, milling, drilling, tapping, and welding, offering high accuracy and adjustable clamping force for various workpiece sizes and shapes.

HST Air Chuck Specifications:

Chuck Accuracy: Standard accuracy is .0001" (0.0025mm) TIR, with an option for .00005" (0.0012mm) TIR.
Available Options: QC Jaw System, Ultra Precision, Auto-Lube, and Back Ported designs.

Sealed Air Chuck Specifications:

Chuck Accuracy: Standard accuracy is .00005" (0.0012mm) TIR, with an option for .00002" (0.0005mm) TIR.
Features: Stainless steel cover to prevent contamination, suitable for high volume production.
Available Options: Ultra Precision, Back Ported, Non-Rotating, and Coolant Thru designs.

Large Diameter Air Chuck Specifications:

Chuck Accuracy: Standard accuracy is .0002" (0.005mm) TIR, with an option for .0001" (0.0025mm) TIR.
Features: High accuracy and adjustable clamping force for large diameter workpieces.
Available Options: QC Jaw System, Ultra Precision, Auto-Lube, Back Ported, and Non-Rotating designs.

QC Quick Change Top Jaw System:

Features: Reduces setup time by maintaining .0002" (0.005mm) TIR accuracy after jaw change.
Design: Utilizes tapered locating buttons for high accuracy and rigidity.

UP Ultra Precision Option:

Accuracy: Repeating accuracy to .000020" (0.0005mm) TIR for extremely close chucking accuracy.

AL Automatic Lubrication Option:

Function: Supplies lubricant through the air tube assembly during machine cycles, suitable for high volume production.

BP Back Ported Option:

Design: Air passages through the back cover for applications requiring workpiece insertion into the chuck center.

Air Tube Assemblies:

Components: Include air hoses, fittings, and a blank support bushing, with a maximum speed of 10,000 rpm.

Air Controls:

Components: Include HV operating valves and FRL units for air pressure control and lubrication.

Blank Top Jaws:

Material: Made from A-2 tool steel, available in various configurations and materials.

Catalog excerpts

MicroCentric Precision Workholding Technology High Precision Air Chucks

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MicroCentric Improve productivity and lower the cost of secondary machining operations . . . . . Radial Runout Lateral Runout through high concentricity. Holding close concentricity tolerances during each machining operation not only reduces scrap rates, but also allows you to leave less material for finishing operations. Therefore, you reduce cycle time and improve tool life of finishing operations. And MicroCentric air chucks give you the capability to improve workpiece roundness, squareness, and parallelism as well. Accuracy within .00005" TIR A standard repeating accuracy of .00005" TIR means...

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MicroCentric Air Chuck Models Rotating Air Chucks Rotating air chucks are ideal for precision turning and cylindrical grinding applications that call for close concentricity and squareness tolerances. Rotating air chucks are available in sizes from 3 to 10 inches in diameter, in 3 and 2 jaw configurations. Stationary Air Chucks Stationary air chucks are ideal for milling, drilling, tapping, welding, and other applications requiring a compact self-contained workholding fixture. Stationary air chucks are available in sizes from 3 to 10 inch diameter, in 3 and 2 jaw configurations. Long Stroke Air...

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Rotating air chucks are ideal for precision turning and cylindrical grinding applications that require close concentricity, squareness, and parallelism tolerances. Variable clamping force enables clamping of thin-walled and other fragile parts with minimal distortion. All models, except the 3-50, feature a coolant or air passage through the center of the chuck. Chuck Accuracy • .00005" (0.0012mm) TIR is standard • .00002" (0.0005mm) TIR is available Chuck Chuck # of Chuck Jaw Max. Max. air Max. Chuck Size Model Jaws* Accuracy** Stroke*** Clamp Force Pressure rpm**** Weight...

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Standard Equipment • One set steel top jaws • Grease gun and lubricant Chuck Accessories • Air tube assemblies - page 17 • Air controls - page 18 • Blank top jaws - page 19 • Chuck lubricant - page 22

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Chucks Stationary air chucks are ideal for milling, drilling, tapping, and other applications requiring a compact self-contained workholding fixture. Air is supplied directly into the side of the chuck body, and the chuck can be mounted directly to the machine table or pallet. Through holes are available on all models. Chuck Accuracy • .00005" (0.0012mm) TIR is standard • .00002" (0.0005mm) TIR is available Chuck Chuck # of Chuck Jaw Max. Max. air Through Chuck Size Model Jaws* Accuracy** Stroke*** Clamp Force Pressure Hole Dia. Weight *2 jaw configurations...

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Chuck Accessories • Air controls - page 18 • Blank top jaws - page 19 • Chuck lubricant - page 22

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Long stroke air chucks feature extended jaw opening for load clearance or to clamp a range of diameters without changing top jaws. Long stroke chucks are available in rotating and stationary configurations. Their high accuracy makes them ideal for clamping headed workpieces for turning, grinding, or milling/drilling applications. Special models with total jaw stroke of .500" (12.7mm), .750" (19.1mm), and 1.000" (25.4mm) are also available. Please call for information. Chuck Chuck # of Chuck Jaw Max. Max. air Max. Chuck Size Model Jaws* Accuracy** Stroke*** Clamp Force...

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HST High Speed Air Chucks HST High Speed Air Chucks feature a titanium chuck body and are actuated by a patented external wedge design that maintains clamping force at high spindle speeds without counterweights. This revolutionary design minimizes the effects of centrifugal force resulting in consistent clamping force throughout the chuck's rpm range. HST chucks are available in standard, HS, and BP models. The HS models are dynamically balanced and feature MicroCentric's patented NR50 non-rotating air tube system. The NR50 design eliminates vibration caused by rotating air at higher spindle...

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Dynamic Jaw Force Graph Standard Equipment • One set steel top jaws • Grease gun and lubricant Chuck Accessories • Air tube assemblies - page 17 • Air controls - page 18 • Blank top jaws - page 19 • Chuck lubricant - page 22

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Sealed air chucks feature a stainless steel cover that seals the jaw slides. This design prevents contamination from grit and swarf and minimizes chuck maintenance for high volume production operations. Sealed air chucks are available in rotating and stationary configurations and are ideal for cylindrical grinding operations as well as machining abrasive materials such as powdered metal, ceramic, or carbide. QC precision located top jaw system is standard on sealed air chucks. Chuck Accuracy • .00005" (0.0012mm) TIR is standard • .00002" (0.0005mm) TIR is available Chuck Chuck # of Chuck Jaw Max. Max....

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MicroCentric Sealed Air Chuck Dimensions Model 34-50-3/SC/QC 45-120-3/SC/QC 67-120-3/SC/QC inch mm inch mm inch mm Chuck Accessories • • • • Air tube assemblies - page 17 Air controls - page 18 Blank top jaws - page 19 Chuck lubricant - page 22

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Large Diameter Air Chucks offer high accuracy and adjustable clamping force for machining large diameter precision and thin-walled workpieces. Large Diameter chucks are availalbe in three jaw as well as two and six jaw configurations. Large Diameter models with extended jaw stroke, air ports on OD of chuck body for stationary applications, and other special configurations are quoted upon request. Chuck Accuracy • .0002" (0.005mm) TIR is standard • .0001" (0.0025mm) TIR is available Chuck Chuck # of Chuck Jaw Max. Max. air Max. Chuck Size Model Jaws* Accuracy** Stroke*** Clamp...

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Air Chuck Catalog

Air Chuck Catalog

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