3S-P-Series-3-Jaw-Large-Size-Solid-Hydraulic-Power-Chuck-Hoshing

3S-P Series 3-Jaw Large Size Solid Hydraulic Power Chuck

High-performance P-type 3-jaw solid hydraulic chuck with large clamping range and ultra-high rigidity, designed for heavy-duty turning of oversized workpieces on heavy-duty CNC lathes.
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Description

3S-P series large size 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 of oversized workpieces.
  1. Optimized P-type solid body structure delivers maximum rigidity and vibration damping, capable of withstanding extreme cutting forces during heavy machining 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 up to 265KN, guaranteeing secure holding even at high rotational speeds.
  4. High runout accuracy ≤0.015mm, 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 A2-6/A2-8/A2-11/A2-15 heavy-duty lathe spindles and large hydraulic cylinders.

Complete Specification Table (Unit: mm / kg)

Mounting Dimensions

MODEL Spindle A B C (H6) D E F G H K L M
3S-12P A2-8(A2-6) 304 142 220 139.719(106.375) 42 6 190 171.4 6-M16x2P 25 30
3S-15P A2-11(A2-8) 381 170 300 196.869(139.719) 58 6 260 235 6-M20x2.5P 32 43
3S-18P A2-11(A2-8) 450 170 300 196.869(139.719) 58 6 260 235 6-M20x2.5P 32 43
3S-21P A2-15(A2-11) 530 167 380 285.775(196.869) 46 6 330.2 330.2 6-M24x3P 33 60
3S-24P A2-15(A2-11) 610 167 380 285.775(196.869) 46 6 330.2 330.2 6-M24x3P 33 60
3S-32P A2-15(A2-11) 800 167 380 285.775(196.869) 46 6 330.2 330.2 6-M24x3P 33 60

Thread & Additional Dimensions

MODEL N (max) N (min) O (max) O (min) P (max) P (min) Q R S T U V W X Y Z
3S-12P 61 55.75 48.75 12.75 145 115 49 18 36 5 M20x2.5P 50 55 129 133.4 -
3S-15P 69.05 60.97 58.05 40.05 82 47 62 25.5 55 7 M30x3.5P 60 68 165 171.4 137.5
3S-18P 99.46 91.38 58.05 40.05 70 35 62 25.5 55 7 M30x3.5P 60 68 165 171.4 157.5
3S-21P 80.49 72.41 101.8 41.8 70 35 65 25 55 7 M30X3.5P 60 75.5 180 235 155
3S-24P 119.49 111.41 101.8 41.8 70 35 65 25 55 7 M30x3.5P 60 75.5 180 235 165.1
3S-32P 119.49 111.39 197.8 41.8 70 35 65 25 55 7 M30x3.5P 60 75.5 180 235 200

Performance Parameters (Corrected standard format)

MODEL Grip Dia (max) Grip Dia (min) Plunger Stroke Jaw stroke Max. pull force (kgf) Max. pull force (KN) Max.gripping force (kgf) Max.gripping force (KN) Max.speed Weight Matching Cylinder Max.hydr pressure (kg/cm²) Max.hydr pressure (Mpa) Price
3S-12P 24 304 30 10.5 4181 41 15907 156 3380 68 RH-150 27.5 2.7
3S-15P 68 381 35 16 8650 81 25290 248 3000 104.1 RH-200 32 3.1
3S-18P 100 450 35 16 8650 81 25290 248 2700 138.5 RH-200 32 3.1
3S-21P 80 530 35 16 8650 81 27000 265 1900 204.8 RH-200 33 3.2
3S-24P 155 610 35 16 8650 81 27000 265 1700 260 RH-200 33 3.2
3S-32P 155 800 35 16 8650 81 27000 265 1100 455.4 RH-200 33 3.2

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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