Overview
The Dayton LRE 50 ball lock punch retainer is a precision-engineered component designed for metal stamping, CNC punching, and die work applications. This alloy steel retainer holds ball-lock-style punches securely in position, ensuring consistent punch alignment and reducing drift during high-speed pressing operations. The LRE series represents Dayton Progress’s light-duty retainer line, ideal for moderate-duty applications requiring reliable punch retention without the heavier load capacity of their HRT (heavy-duty) series.
Key Features
- Ball lock design for quick punch changeover and repeatable positioning
- Alloy steel construction engineered for durability and extended tool life
- Light-duty (LRE) series rated for standard production environments
- Precision-ground ball hole ensures alignment repeatability across tool replacements
- Threaded mounting interface compatible with standard die frames and bolster plates
- Self-locking spring mechanism for secure punch retention during pressing cycles
Technical Specifications
The following specifications are based on Dayton Progress LRE series standards:
- Series: LRE (Light Duty)
- Design Type: Ball Lock End Retainer
- Material: Alloy Steel
- Mounting: Threaded (3/8-16 standard per series)
- Dowel Type: 5/16″ diameter precision-ground
- Spring Mechanism: Self-locking ball spring
- Application Class: Light to moderate duty
Typical Applications
The Dayton LRE 50 is commonly used in:
- Metal stamping and blanking operations
- CNC punch press work
- Progressive die and compound die setups
- General industrial punching and forming
- Tool room and maintenance replacement punch retention
Compatibility & Replacements
Compatible With
- Standard industrial punch press equipment with threaded die mounting surfaces
- Ball-lock-style punches with standard NAAMS or Dayton Progress alignment
- Die frames and bolster plates designed for 3/8-16 threaded retainer mounting
- Precision stamping dies and progressive die tooling
Replaces / Drop-In Replacement For
The LRE 50 is a direct replacement for worn or damaged Dayton Progress LRE 50 retainers. Verify compatibility with your die frame and punch specifications before ordering. Other Dayton LRE series sizes (LRE 37, LRE 62, LRE 75, LRE 87, LRE 100) are available for different shank diameters and load requirements.
Works With
- All ball-lock-style punch systems compatible with light-duty retainer specifications
- Standard CNC punch press control systems and mechanical presses
- Dayton Progress ball lock pilots and die button systems
- NAAMS (North American Automotive Manufacturers Standard) compliant tooling
