Automated Gas Cylinder Inspection System

Turnkey machine-vision AOI for internal wall, mouth threads, and valve seat inspection

Micron-Level Defect Detection
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See inside every cylinder. Certify every unit.

Intelgic’s Automated Gas Cylinder Inspection System uses borescopes, precision motion, and AI-powered vision to deliver 100% coverage of internal surfaces—finding corrosion, pitting, cracks, deposits, thread damage, and more. Generate a Digital Quality Certificate (DQC) for every PASS cylinder and drive toward Zero-Defect manufacturing.

Why Automate Gas Cylinder Inspection?

Safety & compliance

Verify internal conditions before filling or re-certification.

Repeatability at Scale

Objective, recipe-driven decisions vs. subjective manual checks.

Traceability

Image evidence, audit trails, and per-cylinder quality certificates.

OPEX Reduction

Faster decisions, fewer reworks, and less line downtime.

What we inspect

Interior wall (body & dome):

Rust, corrosion, pitting, gouges, cracks, weld-seam defects, paint flakes/debris, residues, liquids.

Mouth & threads:

Wear, burrs, cross-threading, chipping, contamination.

Valve seat/neck ring area:

Damage, deposits, concentricity/geometry anomalies (visual).

External add-ons (optional):

Serial/OCR, label/barcode/QR verification for traceability.

System overview (turnkey)

Imaging Heads

  • Borescopic cameras (side-view/forward-view) for narrow mouth cylinders (typ. 5–6 mm OD scopes).
  • Area/line-scan heads for larger-mouth cylinders or auxiliary external checks.
  • Area/line-scan heads for larger-mouth cylinders or auxiliary external checks.

Specialized Lighting

  • Miniature ring/side-fire illumination for internal surfaces.
  • Multi-angle raking light to pop fine scratches/pits.
  • Strobe/HDR for high-contrast scenes and shiny metal.

Industrial control & integration

  • PLC/SCADA/MES/ERP connectivity (OPC-UA/REST/fieldbus).
  • I/O for interlocks, e-stops, blow-off/clean cycles, reject gates, printers.

Robotic Motion System

  • Motorized linear insertion of camera/lighting into the cylinder.
  • Precision rotation of the camera or cylinder for 360° coverage.
  • Helical scan (synchronized rotation + linear feed) for full-length inspection.
  • Mirror module for 90° side viewing in tight geometries.
  • Integrated encoders for pixel-to-mm mapping and repeatability.

Live Vision AI Software (Intelgic)

  • Hybrid AI + image processing pipeline (semantic/classical).
  • Defect libraries with tunable acceptance criteria per cylinder type.
  • Multi-exposure/HDR fusion, focus bracketing (where needed).
  • Real-time PASS/FAIL, defect overlays, and root-cause snapshots.
  • DQC generation with images, metadata, and signatures.
  • Dashboards & KPIs: yield, top defects, Pareto, trend charts.

How it works

1. Identify & clamp

Cylinder identified (serial/OCR/QR), clamped or positioned.

2. Safe prep

Optional purge/vent and air blow to remove loose debris.

3. Insert & align

Robotic actuator inserts the borescope/lighting; autofocus engages.

4. Helical scan

Cylinder/camera rotates while the probe moves axially; encoders ensure 100% coverage.

5. AI analysis

Live Vision AI detects/segments defects, sizes them, and applies your acceptance matrix.

6. Decision & DQC

PASS/FAIL issued; DQC and images archived to on-prem/cloud.

Why Choose Intelgic

Defects & measurements (examples)

  • Corrosion & pitting: area %, pit count, pit max diameter, cluster severity.
  • Cracks/gouges/scratches: length, width, continuity; adjacency to weld seams.
  • Contamination: oil/grease, liquids, paint flakes, foreign objects—presence & area coverage.
  • Thread damage (mouth): chipped flanks, burrs, missing starts, debris; basic pitch conformity (visual).
  • Valve seat region: nicks/chips, concentric deposits, discoloration, wear rings.

Note: Wall-thickness or structural integrity measurements are typically ultrasonic/pressure-test domains. Intelgic’s solution focuses on visual inspection and integrates easily with those stations.

Acceptance criteria & recipes

  • Per model/service class: LPG, CNG, industrial gases, medical oxygen, etc.
  • Thresholds for pit diameter/area, crack length, corrosion coverage %, thread damage severity, foreign-object area.
  • Zone-based rules (e.g., dome vs. body vs. mouth) and severity scoring.
  • Golden sample and calibration target workflows for quick setup.

Throughput & coverage

  • 100% internal surface via helical scan (rotation + linear feed).
  • Typical cycle times depend on cylinder size and recipe (e.g., scan length, HDR/focus-stacking).
  • Parallelization options: multi-station cells or dual-probe gantries for higher UPH.

Safety & deployment

  • Designed for safe operation in designated facility zones with interlocks, e-stops, and light curtains.
  • Explosion-resistant variants and purge/vent options available for hazardous areas per site classification.
  • Optional fume/particulate extraction, IP-rated enclosures, and isolated electronics.

Data, DQC & analytics

  • Digital Quality Certificate per cylinder (ID, timestamp, line, operator/role, recipe, defect metrics, images, PASS/FAIL).
  • Secure storage on-prem or cloud; role-based access.
  • Line/shift dashboards, defect Pareto, MTBF/MTTR indicators, and export APIs to ERP/MES.

Integration & automation options

  • In-line after de-valving/cleaning or before re-qualification.
  • Near-line batch inspection cells for refurbishment plants.
  • Conveyors/turntables with auto-load/unload, reject chutes, printers/labelers.
  • Hooks for hydro-test, ultrasonic thickness, leak-test stations.

Technical specifications (indicative, configurable)

  • Probe diameter: ~5–6 mm borescope for narrow mouths; larger for wide mouths.
  • Motion axes: Z (insertion), θ (rotation), optional X/Y tilt; encodered.
  • Lighting: micro-ring/side-fire LEDs; multi-angle raking; strobe/HDR.
  • Imaging: up to multi-MP area sensors or line-scan where beneficial.
  • Repeatability: ±(0.05–0.10) mm positioning typical (depends on configuration).
  • Interfaces: OPC-UA/Modbus-TCP/REST; digital I/O; printer & scanner support.
  • Enclosures: IP-rated, industrial HMI, E-stop, interlocks, maintenance bypass key.

Implementation approach

  • Discovery & sample study (defect taxonomy, cleaning method, target standards).
  • POC/pilot cell (coverage validation, false-call tuning, ergonomics).
  • Production design (mechanical, electrical, PLC, vision pipeline).
  • Factory acceptance test (FAT) with golden samples & stress cases.
  • Site installation & commissioning, operator training, SOP handover.
  • Support & scaling (SLA, remote diagnostics, multi-line rollout).

What makes Intelgic different

  • Complete solution: optics + motion + AI software + controls—delivered as one system.
  • Specialized internal-view imaging: side-view borescopes, mirror modules, helical coverage.
  • Live Vision AI tuned for metals/composites and reflective interiors.
  • DQC first: traceability is built-in, not bolted on.
  • Customize anything: from probe geometry to recipes, dashboards, and plant integration.

Frequently Asked Questions

Yes—our visual system detects surface anomalies, fiber/resin irregularities, contamination, and cracks visible to the camera. For structural integrity (delamination/wall thickness), we integrate with your specialized NDT processes.

We configure probe length, motion stroke, and fixtures for typical LPG/CNG/industrial and medical sizes. Share your SKUs and target cycle times; we’ll size the cell accordingly.

We offer explosion-resistant variants and engineered controls (purge/vent, interlocks) appropriate to your site’s zone classification and safety standards.

Through recipes: you choose thresholds for pit size, corrosion coverage, crack length, thread damage, contamination, etc. Recipes are version-controlled and role-gated.

Cylinder ID, images, defect metrics, decision (PASS/FAIL), recipe version, timestamp, line/station, and signatures—stored on-prem or cloud for audits and warranty validation.

Yes. We provide APIs/OPC-UA connectors and can push DQC, counts, and defect stats to your systems.

Get a demo

Let’s review your cylinder range, defects of interest, target takt time, and compliance needs. Intelgic will propose the optimal optics, motion, and AI stack—and deliver a pilot within a rapid timeline.

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