K11 Series 3-Jaw Self-Centering Manual Lathe Chuck (A-Type Rear Mounting)

K11 Series 3-Jaw Self-Centering Manual Lathe Chuck (A-Type Rear Mounting)

A-type rear-mount 3-jaw self-centering manual chuck with reversible jaws, high coaxiality and rigidity, compatible with standard A-series lathe spindles.
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Description

K11 series A-type rear-mount 3-jaw self-centering chucks are manufactured from high-strength cast iron with overall quenching and precision grinding, widely used for turning, drilling and boring operations on conventional and CNC lathes.
  1. A-type rear mounting design ensures high coaxiality and stable connection with lathe spindles, suitable for heavy-duty cutting operations.
  2. Equipped with reversible internal/external jaws, supporting clamping of both outer diameter and inner diameter workpieces to meet diverse machining requirements.
  3. Synchronous self-centering mechanism delivers clamping accuracy ≤0.03mm, guaranteeing consistent machining dimensional stability.
  4. Hardened jaw teeth and guideways provide excellent wear resistance and long service life.
  5. Complete specifications covering 200mm to 500mm chuck diameters, compatible with A15/A16/A18/A115 standard spindle noses.

Complete Specification Table (Unit: mm)

MODEL D D1 D2 D3 D4 D5 H1 h h1 h2 d1 z-d Price
K11-200/A15 K11-200A/A15 200 82.563 61.9 40 133 82.6 93 14.288 12 6.5 16.3 3-M10
K11-250/A15 K11-250A/A15 250 82.563 61.9 40 133 133.4 104 14.288 12 6.5 16.3 3-M10
K11-250/A16 K11-250A/A16 250 106.375 82.6 55 165 171.4 104 15.875 13 6.5 19.5 6-M12
K11-315/A16 K11-315A/A16 315 106.375 82.6 55 165 171.4 114 15.875 13 6.5 19.5 6-M12
K11-315/A18 K11-315A/A18 315 139.719 111.1 78 210 235 116 17.462 14 8 24.2 6-M16
K11-320/A16 K11-320A/A16 320 106.375 82.6 55 165 235 114 15.875 13 6.5 19.5 6-M12
K11-320/A18 K11-320A/A18 320 139.719 111.1 78 210 330.2 116 17.462 14 8 24.2 6-M16
K11-325/A18 K11-25A A18 325 139.719 111.1 78 210 463.6 116 17.462 14 8 24.2 6-M16
K11-325/A16 K11-325A A16 325 106.375 82.6 55 165 330.2 114 15.875 13 6.5 19.5 6-M12
K11-400/A18 K11-400A/A18 400 139.719 111.1 78 210 463.6 128 17.462 14 8 24.2 6-M16
K11-500/A11 K11-500A/A11 500 196.869 165.1 125 280 235 145 19.050 16 10 29.4 6-M20
K11-500/A115 K11-500A/A115 500 285.775 247.6 200 380 330.2 145 20.638 17 10 35.7 6-M24

Applications

CNC Machining

Ideal for CNC lathe, milling and machining center operations, ensuring high-precision dimensional control and reliable tool holding for mass production.

Quality Control Labs

Suitable for quality inspection departments and calibration labs, providing accurate measurement data to verify product compliance with ISO and industry standards.

Mold & Die Making

Perfect for mold and die workshops, where micron-level precision tools and gauges are essential for complex cavity machining and final inspection.

OEM/ODM Projects

Customizable solutions for OEM and ODM manufacturing partners, offering tailored measuring tools and CNC accessories to meet unique production requirements.

Automotive Manufacturing

Designed for automotive component production lines, ensuring consistent precision and durability in engine parts, transmission components and assembly processes.

Aerospace & Precision Engineering

Ideal for aerospace and defense manufacturing, where ultra-high precision instruments and reliable tool holders meet strict quality and safety requirements.

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