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Cr12MoV V-Type Precision Clamping Fixture
- Material: Cr12MoV Cold Work Die Steel
- Hardness: HRC 58–62 after quenching & tempering
- Tolerance: ±0.002 mm for V-groove positioning surfaces
- Surface Finish: Precision Ground
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High-Precision Engineering
Symmetrical V-groove self-centering structure automatically aligns cylindrical workpieces to the central axis, eliminating manual alignment errors. The top pressing beam distributes clamping pressure evenly to prevent shaft bending. Standard T-slot base plate mounting holes enable fast installation on CNC machine tables, grinders and mold assembly benches. Replaceable jaw inserts can be customized for different shaft diameter ranges without replacing the whole fixture base.
High Hardness Cr12MoV Steel Construction
Made from premium Cr12MoV high carbon chromium cold work steel, this clamping fixture delivers reliable mechanical performance:
- High compressive hardness and excellent wear resistance for thousands of clamping cycles
- Strong impact toughness to resist chipping under heavy clamping impact loads
- Low deformation rate under sustained clamping pressure and cutting heat
- Stable dimensional precision with minimal long-term fatigue wear Ideal for heavy-duty metal cutting, mold component grinding and batch precision shaft machining production.
Modular Customizable Structure
Fully adjustable design to match workpiece specifications:
- Custom V-groove opening angle, jaw width and clamping travel range
- Replaceable soft/hard jaw inserts for different workpiece materials (aluminum, steel, copper)
- Optional hardened coating (ion nitriding) for jaw contact surfaces
- Extended base plate sizes for long shaft workpiece clamping
Key Features & Advantages
- Accurate Self-Centering: Symmetric V-groove design delivers reliable axial alignment for cylindrical shafts.
- Heavy-Duty Durability: Cr12MoV high hardness substrate resists abrasion and deformation in long batch production.
- Low-Maintenance Design: Copper screw buffer sleeve reduces thread wear and extends adjuster service life.
- Flexible Compatibility: T-slot base fits most standard CNC machine tools, grinders and mold assembly platforms.
Technical Specifications
| Parameter | Specification |
|---|---|
| Primary Material | Cr12MoV Cold Work Die Steel |
| Alternative Materials | SKD11, 45# Pre-hardened Steel |
| Heat Treated Hardness | HRC 58–62 |
| V-Groove Position Tolerance | ±0.002mm |
| Base Flatness & Jaw Parallelism | ≤0.003mm |
| Surface Roughness | Ra ≤0.06μm (Ground) |
| Manufacturing Processes | 5-Axis CNC Milling, Surface Grinding, Jig Grinding, Hardening & Tempering |
| Surface Treatments | Ion Nitriding, Precision Grinding |
| Customization | 100% Supported via Drawings & Samples |
Applications
Automotive
Used for clamping automotive transmission shafts, engine pin shafts and cylindrical valve components during turning and grinding; robust Cr12MoV fixture handles heavy stock removal for high-strength auto metal parts.
Consumer Electronics
Applied for precision positioning of miniature motor shafts, connector pins and thin cylindrical electronic hardware, consistent centering ensures tight dimensional tolerances for small electronic assemblies.
Medical
Suitable for clamping stainless steel medical instrument shafts and tiny surgical tool blanks; precise low-deformation clamping avoids marring polished medical-grade workpiece surfaces.
Automation & Mold Machining
Deployed as standard workholding fixtures on automated CNC production lines and mold shops, reliable repeated clamping accelerates batch machining of mold pins, ejector shafts and cylindrical mold cores.
