EXPANDING COLLET CHUCK (MANUAL)

EXPANDING COLLET CHUCK (MANUAL)
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EXPANDING COLLET CHUCK (MANUAL)

An Expanding Collet Chuck (Manual) is a hand-operated internal workholding device that grips components from the inside diameter using a mechanical expansion mechanism. Providing uniform 360° internal clamping, it is ideal for thin-wall parts, rings, bushes, sleeves, and bearing housings in tool rooms, job shops, and small-batch production where power actuation is not required.

 
 

 

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🔹 Product Overview

Expanding Collet Chuck (Manual) is a hand-operated internal clamping device designed to grip components from the inside diameter (ID) using a mechanical expansion mechanism. Tightening is done manually via a screw, nut, or taper, expanding the collet evenly to achieve uniform 360° internal grip.

This chuck is ideal for thin-wall parts, rings, bushes, sleeves, and bearing housings, especially in tool rooms, job shops, and small-batch production where power actuation is not required.


🔑 Key Features

  • 🖐️ Manual / Hand-Operated Expansion
  • 🎯 Uniform 360° Internal Clamping
  • 🛠️ Low Distortion for Thin-Wall Components
  • ⚙️ Job-Specific Expanding Collets
  • 🔩 Good Concentricity & Repeatability
  • 🔧 Simple Design, Low Maintenance
  • 💰 Cost-Effective Alternative to Power Chucks

⚙️ How It Works

  • Manual tightening actuates a tapered mandrel or screw
  • The collet expands radially inside the component
  • Provides secure internal grip without marking the OD

📐 Dimension & Mounting Reference

  • Mounting via backplate / flange / fixture plate
  • Custom PCD, pilot diameter & mounting length
  • Supplied with front & sectional drawings (PDF/DWG)

Dimension Legend:
A – Chuck OD | B – Mounting face | C – ID clamping range |
D – Front thickness | E – Body length |
F – Expansion stroke | G – Pilot | H – Overall length


🏭 Applications

  • Thin-wall rings & sleeves
  • Bushes, spacers & collars
  • Bearing housings & races
  • CNC & conventional lathe operations
  • Inspection & secondary machining

 

Why Choose a Manual Expanding Collet Chuck?

Internal gripping without OD deformation
Simple, reliable hand operation
Excellent for delicate & thin-wall parts
Lower cost than pneumatic/hydraulic systems
Easy setup & maintenance

TYPES OF EXPANDING COLLET – TABLE FORMAT

 

No.

Type of Expanding Collet

Operation Method

Clamping Force

Best For / Applications

Key Advantages

1

Manual Expanding Collet

Hand-operated (screw / taper)

Low–Medium

Tool room, job shop, small batch

Simple, economical, low maintenance

2

Pneumatic Expanding Collet

Air-operated (4–8 bar)

Medium

CNC secondary ops, SPMs

Fast clamping, automation ready

3

Hydraulic Expanding Collet

Hydraulic (20–35 bar)

High

Heavy machining, mass production

Very high grip, stable & repeatable

4

Segmented Expanding Collet

Mechanical / Hydraulic

Medium–High

Thin-wall parts, precision rings

Uniform pressure, low distortion

5

Rubber Bonded Expanding Collet

Mechanical

Low

Finished ID, delicate parts

No marking, gentle grip

6

Double Taper Expanding Collet

Mechanical / Hydraulic

High

High concentricity machining

Superior centering & rigidity

7

Dead-Length Expanding Collet

Pneumatic / Hydraulic

Medium–High

Length-critical components

Zero axial movement

8

Special / Job-Specific Expanding Collet

As per design

As required

Non-standard ID & profiles

Perfect fit, custom solution


📌 Quick Selection Tip

  • Low volume / Tool room → Manual Expanding
  • Fast cycle CNC → Pneumatic Expanding
  • Heavy machining → Hydraulic Expanding
  • Thin-wall parts → Segmented / Rubber
  • High accuracy → Double Taper / Dead-Length

Product Inquiry

Have questions about a specific product? Our team will help you find the right option for your needs — ensuring compatibility, quality, and value.

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