Diaphragm Collet Chuck is a high-precision workholding solution engineered for exceptional concentricity and minimal workpiece distortion. The chuck uses an integral elastic diaphragm that flexes uniformly to grip the component, delivering micron-level repeatability—ideal for finish turning, grinding, and tight-tolerance CNC operations.
Unlike segmented collets, the diaphragm design provides continuous 360° contact, ensuring superior roundness, surface finish, and consistency in high-accuracy production.
Key Features
- • Ultra-High Accuracy & Repeatability
- • Integral Diaphragm (No Segments)
- • Uniform 360° Clamping Pressure
- • Low Distortion for Thin-Wall Parts
- • Manual / Pneumatic / Hydraulic Actuation
- • Stable at High RPM (Balanced Design)
- • Long Life with Consistent Performance
Technical Specifications (Typical)
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Parameter
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Specification
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Chuck Type
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Diaphragm Collet Chuck
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Clamping Method
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Elastic Diaphragm
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Operation
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Manual / Pneumatic / Hydraulic
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Material
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Hardened & Ground Alloy Steel
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Runout Accuracy
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≤ 0.01 mm
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Application
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CNC Turning, Grinding, Finishing
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Customization
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Bore size, stroke, mounting
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Applications
- • Finish turning & cylindrical grinding
- • Aerospace & precision automotive parts
- • Medical & instrumentation components
- • Thin-wall rings, sleeves & bushings
- • High-tolerance batch & mass production
Why Choose Our Diaphragm Collet Chuck?
✔ Micron-level accuracy and roundness
✔ Zero marking & minimal deformation
✔ Excellent surface finish results
✔ Export-quality manufacturing standards