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Positioning Cavity / Bore Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A precisely machined cavity or bore within a vial positioning nest, designed to securely hold and align vials during automated filling, capping, labeling, or inspection processes. This component ensures consistent positioning to maintain process accuracy, prevent vial tipping, and enable reliable robotic handling in high-speed production lines.

Working Principle

The cavity/bore provides geometric constraint through its internal dimensions and surface features, using friction, mechanical interference, or vacuum assistance to hold vials in precise alignment. It interfaces with vial geometry to maintain consistent orientation relative to processing equipment, ensuring repeatable positioning for downstream operations.

Materials

Stainless steel (AISI 316L, 17-4PH), aluminum alloys (6061-T6, 7075), engineered plastics (PEEK, UHMW-PE), or ceramic (alumina, zirconia) depending on application requirements for corrosion resistance, wear resistance, and cleanability.

Technical Parameters

Depth 15-50 mm
Hardness HRC 40-60 (metal), Rockwell M70-90 (plastic)
Cleanability Autoclavable/Sterilizable
Bore Diameter 8-30 mm (adjustable based on vial size)
Surface Finish Ra ≤ 0.8 μm (for metal), Ra ≤ 1.6 μm (for plastic)
Operating Temperature -20°C to 150°C
Concentricity Tolerance ≤ 0.05 mm

Standards

ISO 2768, ISO 1101, DIN 7167, DIN ISO 2768

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Positioning Cavity / Bore.

Parent Products

This component is used in the following industrial products

Vial Positioning Nest

A precision fixture component within a stoppering station that securely holds and positions vials during the sealing process.

View Product Details

Engineering Analysis

Risks & Mitigation

Vial misalignment causing process errors
Wear leading to dimensional inaccuracy
Material incompatibility with cleaning agents
Contamination from particle generation

FMEA Triads

Trigger: Dimensional wear from repeated vial insertion/removal
Failure: Increased clearance leading to vial misalignment
Mitigation: Regular inspection and replacement schedules, use of wear-resistant materials, implementing preventive maintenance protocols

Trigger: Contamination buildup in cavity
Failure: Process contamination and inconsistent positioning
Mitigation: Design for easy cleaning, specify smooth surface finishes, establish regular cleaning procedures

Trigger: Thermal expansion mismatch between cavity and vial materials
Failure: Binding or excessive clearance during temperature fluctuations
Mitigation: Material selection considering thermal properties, design with appropriate clearances for operating temperature range

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.02 mm for critical dimensions, concentricity within 0.05 mm TIR

Test Method

Coordinate measuring machine (CMM) verification, functional testing with production vials, cleanability testing per ASTM standards

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are best for positioning cavities in cleanroom environments?

Stainless steel AISI 316L and PEEK are preferred for cleanroom applications due to their corrosion resistance, low particle generation, and compatibility with sterilization processes.

How do positioning cavities maintain vial alignment during high-speed operations?

Through precise dimensional tolerances, optimized surface finishes, and sometimes vacuum assistance or spring-loaded mechanisms that provide consistent holding force while allowing quick vial insertion and removal.

Can positioning cavities be customized for different vial sizes?

Yes, they are typically designed with adjustable or interchangeable inserts to accommodate various vial diameters and shapes, minimizing changeover time between production runs.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Positioning Cavity / Bore