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MBS Diaphragm Chuck Catalog

MBS Diaphragm Chuck Catalog
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MBS Diaphragm Chuck Catalog

Product catalog summary
Overview: MicroCentric has been a leader in providing innovative chucking products for the metalworking industry for over thirty years. Their latest advancement is the MBS high precision Diaphragm Chucks, designed to improve the quality and efficiency of secondary machining operations through high workpiece concentricity and reliable chuck performance.
Unique Diaphragm Chuck Design: The MBS chucks are available in self-contained and draw tube operated designs, suitable for both rotating and stationary applications. Key features include:
  • Accuracy to .0001" (0.005mm) TIR
  • Pull back clamping against a fixed part stop
  • Low maintenance with no lubrication required
  • High speed capability up to 10,000 rpm
  • Variable clamping force for roughing and finishing operations
  • 6 jaw design for minimal distortion on fragile workpieces
MBS Chuck Models:
  • MBS-L: Air operated rotating chucks with built-in air cylinder, available in sizes from 3 to 12 inches. Ideal for high concentricity and high spindle speed applications.
  • MBS-Z: Draw tube operated chucks actuated by hydraulic or pneumatic cylinders, available in sizes from 4 to 12 inches. Suitable for high chucking force applications.
  • MBS-N: Stationary chucks with built-in air cylinder, available in sizes from 3 to 12 inches. Suitable for non-rotating applications requiring high concentricity.
Accessories and Specifications: The document provides detailed specifications for each chuck model, including dimensions, jaw stroke, maximum jaw force, and maximum rpm. Accessories such as rotating air tubes, operating valves, and air filter/regulator/lubricator units are also available to enhance chuck performance.
Conclusion: MicroCentric's MBS chucks offer a versatile and precise solution for various machining operations, ensuring high performance and minimal maintenance.
Overview: This document is a spindle and draw tube data sheet intended for use with MBS/Z chuck models. It is designed to collect specific machine data to ensure the correct spindle mounting plate and threaded draw tube connector are provided.
Key Sections:
  • Specifications: The document lists various measurements and specifications required for the spindle and draw tube, including taper size, mounting thread, pilot length, through hole diameter, counterbore details, and draw tube dimensions.
  • Instructions: Users are instructed to complete the data sheet and submit it with their order to ensure compatibility with their machine.
  • Contact Information: Contact details for MicroCentric Corp are provided, including phone numbers, fax, and email for sales inquiries.
Critical Information: The document emphasizes the importance of submitting a detailed drawing of the spindle for machines with a straight spindle pilot. It also explains the significance of the draw tube's position relative to the spindle face, indicating whether it is in front or behind.
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Catalog excerpts

MBS Diaphragm Chuck Catalog-1

^ MicroCeritric Precision Workholding Technology High Precision Diaphragm Chucks

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MBS Diaphragm Chuck Catalog-2

Improving the quality and efficiency of secondary machining operations . . . . through high workpiece concentricity, and reliable chuck performance. For thirty years MicroCentric has supplied innovative chucking products to the metalworking industry according to this principle. The MBS high precision Diaphragm Chucks are the latest advance of MicroCentric's workholding technology. MBS chucks are available in both self-contained and draw tube operated designs. All models are double acting, meaning they are capable of both OD and ID clamping, and are available for rotating and stationary applications....

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MBS Diaphragm Chuck Catalog-3

MicroCentric Table of Contents MBS-L Air Operated Rotating Chucks - page 3 MBS-L models are a self-contained design with built-in air cylinder for rotating applications. Air is supplied to MBS/L chucks by a rotating air tube assembly mounted inside the machine spindle. MBS/L chucks are available in sizes from 3 to 12 inch diameter. MBS-Z Draw Tube Actuated Chucks - page 5 MBS/Z models are actuated by either a hydraulic or pneumatic cylinder mounted to the rear of the machine spindle. MBS/Z chucks are a modular design that includes a spindle adapter and threaded draw tube connector. MBS/Z chucks...

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MBS Diaphragm Chuck Catalog-4

MicroCentric MBS/L Air Operated Diaphragm Chucks Design Self-contained design with built-in air cylinder. Air is supplied to the chuck by a multi passage air tube assembly with a rotary coupling. Coolant through the spindle capability is standard. Application OD and ID chucking for cylindrical grinding, turning, and hard turning. Ideal for workpieces requiring high concentricity, and/or close roundness. Ideal for fragile parts which are easily distorted, and applications requiring high spindle speeds. Chuck Chuck Repeating No. of Jaw Max. Max. Air Max. Weight*** Model Size Accuracy...

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MBS Diaphragm Chuck Catalog-6

MicroCentric MBS/Z Draw Bar Operated Diaphragm Chucks Design Draw tube operated design. Can be actuated with either a hydraulic or pneumatic cylinder mounted at the rear of the machine spindle. Application OD and ID chucking for cylindrical grinding, turning, and hard turning. Ideal for workpieces requiring high concentricity, and applications requiring high chucking force and/or high spindle speeds. Chuck Chuck Repeating No. of Jaw Max. Max. Draw Max. Weight*** Model Size Accuracy Jaws Stroke* Jaw Force Tube Force rpm** * Jaw stroke on diameter with 1.50" high top jaws Max....

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MBS Diaphragm Chuck Catalog-8

MicroCentric MBS/N Stationary Diaphragm Chucks Design Self-contained design with built-in air cylinder. Air ports are located on the side of the chuck body for stationary use. Application OD and ID chucking for milling, drilling, inspection, or any other nonrotating application requiring high concentricity and/or close workpiece roundness. The inherent spring characteristic of the diaphragm allows workpieces to be clamped without continuous air supply for pallet and tombstone applications. Chuck Specifications Chuck Chuck Repeating No. of Jaw Max. Max. Air Weight** Model...

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MBS Diaphragm Chuck Catalog-10

No. Jaws Diameter Height 3" MMR-80-6 MMR diaphragms are used with SMR series top jaws which are bolted on from the rear of the diaphragm. This eliminates the possibility of having an interrupted clamping diameter since there are no counter-bored mounting holes in the top jaws. MMR diaphragms are also available in 2, 3, and 8 jaw configurations. ASS part stop spiders are mounted to the face of the diaphragm, underneath the top jaws. They are machined for locating pins or other part stops to be mounted to the stop spider for end location of the workpiece.

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MBS Diaphragm Chuck Catalog-11

Chuck Size Model No. Diameter Height Material Weight SMR blank top jaws are used with MMR diaphragms. They are machined on the chuck to suit the workpiece. Refer to MicroCentric's operating manual for detailed instructions on the design and preparation of finished top jaws. Blanks jaws can be hardened after rough machining, and then finish ground on the chuck. Blank jaws are available in other configurations and materials. Contact our sales department for information on custom hardened and ground top jaws.

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MBS Diaphragm Chuck Catalog-12

MicroCentric MBS Chuck Accessories Rotating Air Tubes Air tube assemblies are used with MBS/L chuck models. The rotary air coupling features a hardened steel journal and a maintenance free oil-lite bearing. Rotary air tubes include a blank support bushing, air hoses and fittings. Length to be specified when ordering. Contact our sales department for assistance in determining the correct length for your application. LENGTH Air Tube Model 50 Model 82 Chucks used with: 80, 100, 125 & 150 models 250 and 300 models Air Tube Model 50 Model 82

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MBS Diaphragm Chuck Catalog-13

HV operating valves are three position manually operated pneumatic valves that direct air flow to open and close MicroCentric air chucks. Each HV valve includes air hoses and fittings required for installation. Model Fitting Size Max Pressure Air Tube Model The FRL-15 is a combination air filter/regulator/lubricator unit that controls the air pressure to the chuck's built-in cylinder, and provides lubrication to the rotary air bearing assembly. This unit also filters contaminants from the air supply. Water that accumulates in the filter unit can be purged by a manual drain. Each unit includes...

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MBS Diaphragm Chuck Catalog-14

* For machines with a straight spindle pilot a detail drawing of the spindle must be submitted ** Positive (+) indicates draw tube is in front of the spindle face (as shown) Negative (-) indicates draw tube is behind the spindle face

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MBS Diaphragm Chuck Catalog-15

MicroCentric MicroCentric Corp • 25 So. Terminal Drive, Plainview, NY 11803 • USA Tel: 516-349-7220 • Fax: 516-349-9354 • e-mail: [email protected] 1-800-573-1139

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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.