A Special Collet is a custom-designed Workholding or tool-holding collet manufactured as per specific job, component shape, machine requirement, or application.
Unlike standard collets, special collets are engineered to deliver perfect grip, higher accuracy, and repeatability for non-standard or critical components.
Special collets are widely used were standard ER, 5C, Traub, or jaw chucks cannot provide optimal holding.
Key Features
- Custom-made as per drawing or physical sample
- Exact gripping profile for zero slippage
- High concentricity & repeat accuracy
- Suitable for automation & mass production
- Designed for complex shapes & tight tolerances
- Long service life with hardened & ground finish
Types of Special Collets We Manufacture
- Step Collets
- Profile / Form Collets
- Square / Hex / Multi-shape Collets
- Internal Expanding Collets
- Thin-wall / Delicate component collets
- Rubber bonded collets
- Carbide lined collets
- Diamond coated collets
Special Collet – Typical Dimension Range
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Parameter
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Custom Range
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Clamping Diameter
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2 – 150 mm
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Outer Diameter (OD)
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As per chuck
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Overall Length (L)
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As per machine
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Grip Type
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External / Internal
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Accuracy (TIR)
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≤ 0.01 – 0.03 mm
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Material
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Alloy Steel
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Hardness
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60 HRC (as required)
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📌 All dimensions are manufactured strictly as per customer requirement.
Construction Details
- Material: EN47 / Alloy Steel / Tool Steel
- Heat Treatment: Hardened & tempered / case hardened
- Finish: ID & OD precision ground
- Surface Options: Plain / Carbide lined / Diamond coated
- Design: Optimized slit & taper for uniform clamping
Applications
- CNC turning centers
- Grinding machines
- Automation & transfer lines
- Aerospace & automotive components
- Hydraulic & precision engineering parts
- Packaging & aerosol industry
Why Choose Our Special Collets?
- âś” In-house design & manufacturing
- âś” Made from drawing or sample
- âś” Consistent quality for mass production
- âś” Reduced cycle time & rejection
- âś” Suitable for Indian & export machines