Electronic Light and Beep type Edge Finder Edge Sensor
Precision alignment tool for CNC operations. Model ES20 features 20 mm shank diameter with LED and beep indication. • 10 mm tip diameter for fine edge detection • Powered by 1.5V AAAA battery for portability • Recommended spindle speed up to 500 RPM • High hardness HRC 58–62 for extended service life
See it in action
Specifications
For: ES20- Model
- ES20
- Product Type
- Electronic Edge Finder
- Detection Type
- Beep & LED Light Indication
- Shank Diameter
- 20 mm
- Tip Diameter
- 10 mm
- Body Material
- Stainless Steel / Alloy Steel
- Accuracy
- ±0.005 mm
- Battery Type
- 1.5V / LR1 / AAAA Battery
- Recommended Spindle Speed
- 0 – 500 RPM
- Mounting Type
- Collet / Chuck Mounted
- Compatible Holder
- ER Collet / Drill Chuck
- Suitable Machines
- Milling, CNC, VMC, Drilling Machines
- Approx. Net Weight
- 0.15 – 0.25 Kg
- Approx. Packing Size
- 140 × 60 × 50 mm
Construction and Durability
- Durable stainless steel body withstands harsh industrial conditions
- Alloy steel construction ensures longevity in heavy-duty use
- Resistant to coolant and oil exposure common in machine shops
- Robust design maintains calibration under repeated usage
- Built to meet the demands of professional manufacturing floors
Power and Operational Limits
- Recommended spindle speed range is 0 to 500 RPM for safety
- Powered by standard 1.5V / LR1 / AAAA battery for portability
- Low power consumption ensures long battery life during shifts
- Easy battery replacement allows for continuous production use
- Operates efficiently within standard industrial voltage ranges
Mounting and Machine Compatibility
- Compatible with ER collet and drill chuck mounting systems
- Suitable for VMC, CNC, and drilling machine applications
- Designed for seamless integration with standard spindle setups
- Works effectively across various industrial milling environments
- Supports standard tool holder configurations for quick changeovers
Precision Edge Detection Features
- Features LED light and beep signals for instant edge detection
- ±0.005 mm accuracy ensures precise setup for machining operations
- Electronic sensor technology reduces human error during alignment
- Ideal for high-precision CNC and milling operations
- Provides clear visual and audio feedback to the operator
Frequently asked
How do I know when the edge is detected?
The device triggers an LED light and audible beep signal
What is the maximum safe operating speed?
Do not exceed 500 RPM to prevent damage to the sensor
How often should the battery be replaced?
Replace when the LED brightness dims or beep weakens
Is this suitable for manual milling machines?
Yes, it is compatible with VMC, CNC, and drilling machines
More questions buyers ask
What is an electronic edge finder used for?
An electronic edge finder is a precision tool used in CNC and milling machines to accurately determine the edge of a workpiece, allowing for precise setup and alignment.
What is the accuracy of the PENTAGON ES20 edge finder?
The PENTAGON ES20 offers a high accuracy of ±0.005 mm, ensuring precise measurements for your machining operations.
What machines is the ES20 compatible with?
The ES20 is compatible with a wide range of machines, including CNC milling machines, VMC (Vertical Machining Centers), and drilling machines that use ER collet or drill chuck systems.
What is the recommended spindle speed for this edge finder?
To ensure safety and prevent damage to the sensor, the recommended spindle speed is between 0 and 500 RPM.
What battery does the PENTAGON edge finder use?
The device is powered by a standard 1.5V / LR1 / AAAA battery, which is easily replaceable.
How do I know when the edge is detected?
The PENTAGON ES20 features both an LED light and an audible beep signal that activate instantly upon detecting the workpiece edge.
Who should choose the PENTAGON ES20 model?
The ES20 model, with its 20mm shank diameter, is ideal for workshops and manufacturing units using standard CNC and VMC machines. It's perfect for operators who need a reliable, high-accuracy tool for quick and precise workpiece setup.
What is the difference between an electronic and a mechanical edge finder?
Electronic edge finders like the PENTAGON ES20 provide instant feedback with light and sound, are generally more accurate, and can be used on non-conductive materials. Mechanical edge finders rely on the operator's visual alignment of a concentric tip, which can be less precise and slower to use.
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Full description
Precision alignment tool for CNC operations. Model ES20 features 20 mm shank diameter with LED and beep indication. • 10 mm tip diameter for fine edge detection • Powered by 1.5V AAAA battery for portability • Recommended spindle speed up to 500 RPM • High hardness HRC 58–62 for extended service life









