HJ Series Standard Hard Jaws for 3-Jaw Hydraulic Power Chucks

HJ Series Standard Hard Jaws for 3-Jaw Hydraulic Power Chucks

High-precision hardened alloy steel standard hard jaws with 1.5×60°/3×60° serration pitch, compatible with all mainstream hydraulic power chucks, delivering strong clamping force for heavy-duty machining.
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Description

HJ series standard hard jaws are manufactured from high-strength alloy steel with overall quenching and precision grinding, the essential matching accessories for 3-jaw hydraulic power chucks.
  1. High-hardness quenched surface (HRC 58-62) provides excellent wear resistance and long service life, suitable for heavy-duty rough turning and high-load machining.
  2. Standard 1.5×60° and 3×60° serration pitch designs, fully compatible with all mainstream 5-24 inch 3-jaw hydraulic power chucks on the market.
  3. Precision-machined mounting holes and serration surfaces ensure perfect fit with chuck bodies, guaranteeing high clamping accuracy and stability.
  4. Available in multiple sizes to match different chuck specifications, covering all common workpiece clamping requirements.
  5. Standardized interchangeable design allows quick replacement and adjustment, reducing downtime and improving production efficiency.

Complete Specification Table (Unit: mm / kg)

Model H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 Weight (kg) Reference Drawing Price
HJ-05 53 23 28 10 4 29 14 24 10 M8×1.25P 1.5×60° 0.4 图 2
HJ-06 67 31 36 12 4 39 20 28 12 M10×1.5P 1.5×60° 0.95 图 2
HJ-08 87 35 51 14 5 29.5 25 18 12 M12×1.75P 1.5×60° 1.9 图 1
HJ-10 101 40 54 16 5 45.5 30 18 13 M12×1.75P 1.5×60° 2.8 图 1
HJ-12S 108 50 67 18 5 49 30 20 16 M14×2P 1.5×60° 3.5 图 1
HJ-12K 148 50 67 21 4 49 30 20 16 M16×2P 1.5×60° 3.5 图 1
HJ-15/18S 143 62 86 25.5 5 55 43 38 20 M20×2.5P 1.5×60° 9.5 图 1
HJ-21/24S 159.5 80 90 25 9 97.5 50 62 40 M20×2.5P 3×60° 15.3 图 2

Parameter Explanation

  • H1-H10 : Overall and mounting dimensions (unit: mm), corresponding to Fig.1/Fig.2 engineering drawings
  • H11 : Jaw serration pitch specification, the key parameter for chuck compatibility
  • Weight : Net weight per single jaw (unit: kg)
  • Reference Drawing : Corresponding technical drawing number for dimension reference
  • Model Naming : The number indicates the matching chuck size (e.g., HJ-08 = for 8 inch hydraulic chuck)

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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