02/04K Series 2-Jaw & 4-Jaw Hollow Through-Hole Hydraulic Power Chuck

02/04K Series 2-Jaw & 4-Jaw Hollow Through-Hole Hydraulic Power Chuck

Dual-option 2-jaw/4-jaw hollow hydraulic chuck with large through-hole, high clamping force and rigidity, ideal for CNC lathe bar feeding, irregular workpiece turning and milling operations.
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02/04K series hollow hydraulic power chucks are manufactured from high-strength alloy steel with overall quenching and precision grinding, providing reliable workholding solutions for CNC lathe machining.
  1. Available in both 2-jaw (02K) and 4-jaw (04K) configurations to meet different workpiece clamping requirements; 2-jaw for symmetrical parts, 4-jaw for irregular and square workpieces.
  2. Large hollow through-hole design allows long bar stock to pass through, perfect for continuous automatic bar feeding production.
  3. Optimized wedge mechanism delivers stable and powerful clamping force, ensuring secure holding during heavy-duty cutting and high-speed rotation.
  4. High runout accuracy ≤0.01mm, delivering excellent machining precision and surface finish.

  5. Standard mounting dimensions compatible with most common CNC lathe spindles and hydraulic cylinders, easy to install and maintain.

Complete Specification Table (Unit: mm / kg)

Mounting Dimensions

MODEL Spindle A B C (H6) F H J K L
02K05 A2-4 135 60 110 4 82.6 33 4-M 10x75 15
02/04K06 A2-5 169 81 140 5 104.8 45 6/4-M 10x95 16
02/04K08 A2-6 210 91 170 5 133.4 52 6/4-M12X105 18
02/04K10 A2-8 254 100 220 5 171.4 75 6/4-M16X100 22
02/04K12 A2-8 304 110 220 6 171.4 91 6/4-M16X110 23

Thread & Additional Dimensions

MODEL M N (max) N (min) O (max) O (min) P (max) P (min) Q R S T U (max) W X
02K05 14 26.2 23.5 19 6 1 -9 25 10 20 2 M40x1.5P 31.5 62
02/04K06 20 32 29.25 22.75 9.25 11 -1 31 12 19 2 M55x2.0 37.5 73
02/04K08 25 38.7 35 30 15 14.5 -1.5 35 14 20.5 2 M60x2.0 39 95
02/04K10 30 51 46.6 34 14.5 8.5 -10.5 40 16 25 2 M85x2.0 43 110
02/04K12 30 61.3 56 45.75 15.75 8 -15 49 21 28 2 M100x2.0 50.5 129

Performance Parameters

MODEL Grip Dia (mm) Jaw stroke Plunger Stroke Max.pull Force Max. gripping force Max.speed Weight Matching Cylinder Max. hydraulic pressure Price
max min mm mm kgf KN kgf KN r.p.m(min⁻¹) kg kg/cm² Mpa
02K05 135 10 5.4 10 1120 11 2340 23 7000 6.5 TK-536 19 1.9
02/04K06 169 15 5.5 12 1420/1630 14/16 3770/4180 37/41 6000/4500 13.1 TK-646 18.5/21 1.8/2.1
02/04K08 210 14 7.4 16 2240/2240 22/22 5710/6010 56/59 5000/3600 21.3 TK-852 17/19 1.7/1.9
02/04K10 254 31 8.8 19 2850/3160 28/31 7440/8050 73/79 4200/3200 33.5 TK-1075 18/20 1.8/2.0
02/04K12 304 34 10.6 23 3670/4080 36/40 9690/10400 95/102 3300/2500 52 TK-1291 18/20 1.8/2.0

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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