03S Series 3-Jaw Solid Hydraulic Power Chuck

03S Series 3-Jaw Solid Hydraulic Power Chuck

Ultra-rigid 3-jaw solid hydraulic chuck with no through-hole, high clamping force and precision, designed for heavy-duty turning of large symmetrical workpieces on CNC lathes.
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Description

03S series 3-jaw solid hydraulic power chucks are manufactured from high-strength alloy steel with overall quenching and precision grinding, providing exceptional rigidity and stability for heavy-duty machining operations.
  1. Solid body structure without through-hole delivers maximum rigidity and vibration damping, ideal for heavy cutting of large and thick workpieces.
  2. 3-jaw self-centering design automatically centers round and hexagonal workpieces, ensuring uniform clamping force distribution.
  3. Optimized wedge mechanism provides extremely high and stable clamping force, guaranteeing secure holding even at high rotational speeds.
  4. High runout accuracy ≤0.01mm, delivering excellent machining precision and surface finish.
  5. Hardened jaws and guideways offer superior wear resistance and long service life.
  6. 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) D E F G H J K L M N (max)
03S06 A2-5 165 84 140 82.536 15 5 116 104.8 21 6-M10 19 20 37.8
03S08 A2-6 210 97 170 106.375 17 5 150 133.4 25 6-M12 18 25 46.3
03S10A06 A2-6 254 109 220 106.375 25 5 171.4 133.4 34 6-M12 18.5 30 51.1
03S10A08 A2-8 254 102 220 139.719 18 5 190 171.4 34 6-M16 25 30 51.1
03S12A06 A2-6 304 125 220 106.375 25 6 171.4 133.4 34 6-M12 18 30 61
03S12A08 A2-8 304 118 220 139.719 18 6 190 171.4 34 6-M16 25 30 61

Thread & Additional Dimensions

MODEL N (min) O (max) O (min) P (max) P (min) Q R S T U V W X Y
03S06 33.5 15.1 9.1 86.5(101.5) 66.5(81.5) 31 12 36 M 16x2.0 4 34 39 73 3-M6
03S08 41.9 22.25 11.75 110(127) 89(106) 35 14 36 M20x2.5 5 38 42 95 3-M6
03S10A06 46.7 30.75 11.25 133(158) 108(133) 40 16 36 M20x2.5 5 45 46 110 6-M16
03S10A08 46.7 30.75 11.25 140(158) 115(133) 40 16 36 M20X2.5 5 45 46 110 3-M8
03S12A06 55.75 48.75 12.75 138(163) 108(133) 49 18 36 M20X2.5 5 50 53.5 129 6-M16
03S12A08 55.75 48.75 12.75 145(163) 115(133) 49 18 36 M20X2.5 5 50 53.5 129 3-M8

Performance Parameters

MODEL Grip Dia (mm) Jaw stroke (mm) Plunger Stroke (mm) Max. pull force Max. gripping force Max.speed (r.p.m/min⁻¹) Weight (kg) Operating Cylinder Max.hydr pressure Operating HARD JAW Price
max min kgf (KN) kgf (KN) kg/cm² (Mpa)
03S06 165 18 8.5 20 1835(18) 5353 (52.5) 5270 14 RH-100 2.6 (26.5) HJ-06
03S08 210 21 8.8 21 2549(25) 7648 (75) 4760 27 RH-125 2.5 (25.5) HJ-08
03S10A06 254 24 8.8 25 2957(29) 11013(108) 4010 40 RH-125 2.8 (28.6) HJ-10
03S10A08 254 24 8.8 25 2957(29) 11013(108) 4010 40 RH-125 2.8 (28.6) HJ-10
03S12A06 304 24 10.5 30 4181(41) 15907(156) 3380 67 RH-150 2.7 (27.5) HJ-12S
03S12A08 304 24 10.5 30 4181(41) 15907(156) 3380 66 RH-150 2.7 (27.5) HJ-12S

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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