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Precision Disc Spring Stack with High Axial Clamping Force for CNC Spindles Made from 51CrV4 Material

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Precision Disc Spring Stack with High Axial Clamping Force for CNC Spindles Made from 51CrV4 Material

Primary Materials : 51CrV4 (DIN 1.8159)

Precision Stamping : Advanced automated

Inner Diameter : 4.2 mm to 200.0 mm

Vibration Damping : Micro-vibrations dampened

Heat Treatment : Advanced automated

Dynamic Stability : Enhanced

Fatigue Life : 1,000,000 cycles

Stroke Configuration : Face-to-face stacking

Surface Treatment : Shot-peened

Bearing Preload : Accurate

Spindle Bearing Life : Extended

Axial Runout : Minimized

Load Distribution : Uniform mechanical load

Material Optimization : Vacuum degassing

Surface Finish : Superior workpiece

Stack Configuration : Series stack

High RPM : Reduced heat generation

Deflection Range : 50% to 75% of total height

Clamping Force : High axial

Force Tolerance : ±5% or tighter

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Precision Disc Spring Stack for Machine Tool Spindles and Clamping Systems
For high-speed CNC machining centers, precision and repeatable accuracy are non-negotiable. Jiangsu Sanzhong Elastic Technology Co., Ltd. manufactures high-frequency Disc Spring Stack assemblies designed for machine tool spindles, automatic tool changers (ATC), and workpiece clamping mechanisms. These specialized spring stacks deliver high axial clamping forces within restricted spaces, ensuring that tool holders remain securely locked during heavy milling, drilling, and turning operations.
+------------------------------------------------------------------------+ | SERIES STACK CONFIGURATION | | | | Placing washers face-to-face multiplies the total stroke | | while keeping the load equal to a single disc. | | | | ___ ___ ___ | | / / / | | /_____ /_____ /_____ | | _______ _______ _______ | | / / / | | _____/ _____/ _____/ | | | | Key Benefit: Perfect for CNC tool drawbars that require a long, | | linear stroke to release and engage tool holders smoothly. | | | +------------------------------------------------------------------------+
The dynamic stability of a tool spindle depends directly on the quality of its internal spring elements. Our manufacturing facility utilizes advanced automated heat-treating and precision stamping technologies to ensure that every individual disc within the stack shares the mechanical load uniformly. This uniform distribution prevents uneven wear, minimizes axial runout, and dampens micro-vibrations, resulting in superior workpiece surface finishes and extended spindle bearing life.
Target Client Applications
  • CNC Machining Center Drawbars: Deployed to maintain constant tension on retention knobs, ensuring secure tool holder engagement.
  • Power Chuck Clamping Systems: Integrated into hydraulic or pneumatic power chucks to provide fallback mechanical clamping pressure.
  • High-Speed Rotating Spindles: Used to apply accurate bearing preloads, reducing heat generation and vibration at high RPMs.
Technical Specifications & Product Parameters
Primary Materials: Premium 51CrV4 (DIN 1.8159), optimized via vacuum degassing for high fatigue life.
Force Tolerance Profile: Maintained within strict limits (±5% or tighter) via automated electronic load testing.
Inner Diameter (ID) Range: Machined to fit spindle tie-rods from 4.2 mm up to 200.0 mm.
Fatigue Life Rating: Guaranteed for over 1,000,000 tool-change cycles under recommended deflection ranges (between 50% and 75% of total height).
Surface Balance Enhancement: Shot-peened surfaces to introduce compressive residual stresses, preventing micro-cracking and premature fatigue failure.

Product Tags:

51CrV4 Precision Disc Spring Stack

      

CNC Spindle Precision Disc Spring Stack

      
Quality Precision Disc Spring Stack with High Axial Clamping Force for CNC Spindles Made from 51CrV4 Material for sale

Precision Disc Spring Stack with High Axial Clamping Force for CNC Spindles Made from 51CrV4 Material Images

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