INDUSTRY COMPONENT

Gauge Finger

A precision positioning component in back gauge systems for sheet metal bending machines.

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Component Specifications

Definition
The gauge finger is a critical component of back gauge systems used in press brakes and sheet metal bending equipment. It serves as a physical stop or reference point that positions metal sheets accurately before bending operations. Typically mounted on a movable carriage, it ensures consistent bend lines by providing repeatable positioning through mechanical or electronic control systems.
Working Principle
The gauge finger operates by establishing a fixed reference plane against which sheet metal is positioned. When the back gauge carriage moves to a programmed position, the gauge finger creates a precise stopping point. The sheet metal is pushed against this finger, ensuring accurate alignment before the bending ram descends. Modern systems may incorporate sensors to verify contact and positioning accuracy.
Materials
Typically made from hardened tool steel (AISI D2, A2, or similar grades) or carbide-tipped for wear resistance. Some applications use aluminum alloys with hardened inserts for lightweight applications.
Technical Parameters
  • Width 10-25mm
  • Height 15-40mm
  • Length 50-300mm
  • Hardness 58-62 HRC
  • Mounting Type T-slot or bolt-on
  • Surface Finish Ra 0.4-0.8 μm
Standards
ISO 9001, DIN 8586

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gauge Finger.

gauge finger back gauge component press brake parts sheet metal positioning bending machine accessories industrial tooling Gauge Finger in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Back Gauge

A positioning device on a hydraulic press brake that controls the bending position of sheet metal.

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Back Gauge System

A positioning system that controls the distance from the bending line to the material edge in metal bending presses.

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Engineering Analysis

Risks & Mitigation
  • Wear and dimensional inaccuracy
  • Improper installation causing misalignment
  • Material fatigue from repeated impact
  • Contamination affecting positioning accuracy
FMEA Triads
Trigger: Abrasive wear from sheet metal contact
Failure: Dimensional inaccuracy exceeding tolerance limits
Mitigation: Regular inspection and replacement schedules, use of wear-resistant materials, proper lubrication of contact surfaces
Trigger: Improper mounting torque
Failure: Component loosening during operation
Mitigation: Use calibrated torque wrenches during installation, implement regular maintenance checks, use thread-locking compounds
Trigger: Metal fatigue from cyclic loading
Failure: Component fracture under operational stress
Mitigation: Regular non-destructive testing, proper material selection, stress analysis during design phase

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05mm positioning accuracy
Test Method
Coordinate measuring machine (CMM) verification, laser alignment systems, go/no-go gauge testing

Buyer Feedback

★★★★☆ 4.8 / 5.0 (12 reviews)

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Gauge Finger meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Gauge Finger arrived with full certification."

"Great transparency on the Gauge Finger components. Essential for our Machinery and Equipment Manufacturing supply chain."

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Frequently Asked Questions

What is the primary function of a gauge finger?

The gauge finger provides precise positioning reference points for sheet metal in bending operations, ensuring accurate bend lines and consistent part dimensions.

How often should gauge fingers be inspected for wear?

Inspect gauge fingers every 500 operating hours or monthly in high-production environments. Replace when wear exceeds 0.1mm from original dimensions.

Can gauge fingers be customized for specific applications?

Yes, gauge fingers can be custom manufactured with specific lengths, materials, and mounting configurations to match unique machine requirements or specialized bending applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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