Reference Edge/Surface: Dimensional accuracy ±0.005 mm

Component Specifications

Definition

A precisely machined edge or planar surface on a feeder base that serves as a dimensional reference point for positioning components during automated feeding operations. This critical feature ensures repeatable alignment by providing a consistent contact point against which parts are registered, eliminating positional variability and maintaining tight tolerances throughout the feeding process.

Working Principle

The reference edge/surface establishes a fixed geometric datum that guides components into precise positions. When parts enter the feeder, they contact this reference feature, which constrains their movement along defined axes. This mechanical registration ensures each component assumes an identical orientation and location relative to the feeding mechanism, enabling subsequent operations like picking, inspection, or assembly to occur with high positional accuracy.

Materials

Hardened tool steel (AISI D2 or equivalent), stainless steel (304 or 316), or aluminum alloy (6061-T6) with wear-resistant coatings like titanium nitride (TiN) or chromium nitride (CrN) for durability.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hardness	58-62 HRC (steel)
Flatness Tolerance	≤0.01 mm
Dimensional Accuracy	±0.005 mm
Surface Roughness (Ra)	≤0.4 μm
Temperature Stability Range	-20°C to 80°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 2768, DIN 7168

Parent Products

This component is used in the following industrial products

Feeder Base

The structural foundation that securely holds and positions tape feeders on an SMT pick-and-place machine.

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Engineering Analysis

Risks & Mitigation

Wear and dimensional degradation
Contamination buildup
Thermal expansion misalignment
Impact damage from part collisions

FMEA Triads

Trigger: Abrasive part contact over time
Failure: Edge rounding or surface wear exceeding tolerance
Mitigation: Implement wear-resistant coatings and scheduled preventive maintenance

Trigger: Improper cleaning procedures
Failure: Contaminant accumulation causing positional errors
Mitigation: Establish regular cleaning protocols using approved solvents

Trigger: Thermal cycling in environment
Failure: Dimensional changes due to material expansion/contraction
Mitigation: Use materials with low thermal expansion coefficients and control ambient temperature

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101, dimensional tolerances per ISO 2768-m

Test Method

Coordinate measuring machine (CMM) verification, laser interferometry for flatness, surface profilometry for roughness

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Reference Edge/Surface

Manufacturer profiles associated with Reference Edge/Surface.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a reference edge/surface on a feeder base?

It provides a consistent mechanical datum for accurate and repeatable positioning of components during automated feeding operations.

How does wear affect reference edge performance?

Wear degrades dimensional accuracy, causing positional drift and misalignment, which necessitates regular inspection and maintenance.

Can reference edges be adjusted or recalibrated?

Some designs allow micro-adjustments via set screws or shims, but permanent references typically require remachining if damaged.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Reference Edge/Surface