Project Case Study

CLIENT ORGANIZATION

Airports Authority of India (AAI)

FACILITY / LOCATION

Chennai International Airport (MAA), Chennai, Tamil Nadu

SERVICE SCOPE

Comprehensive AMC, 24/7 Breakdown Support & OEM Spares

EXECUTING AGENCY

Technocrats Security Systems / TKIPL

ASSET INVENTORY

100 Automatic Doors & 96 High-Velocity Air Curtains

LIFECYCLE AMC TENURE

2024 to Present (2.5+ Years Continuous Operations)

PENALTY RECORD

ZERO Penalties (0.00%) Levied Across Entire Tenure

OPERATIONAL UPTIME

99.9%+ Uptime across all high-density passenger portals

1. Executive Summary & Operational Context

Chennai International Airport (MAA), operated by the Airports Authority of India (AAI), serves as one of India's busiest aviation mega-hubs, facilitating over 20+ million passengers annually across domestic and international terminal corridors. Ensuring smooth, barrier-free passenger transit while maintaining rigorous climate isolation in Chennai's severe tropical coastal heat requires continuous, highly disciplined engineering maintenance.

Starting in January 2024, Technocrats Security Systems Pvt. Ltd. and Technocrats Kohlhauer Infrastructure Pvt. Ltd. (TKIPL) undertook the comprehensive Annual Maintenance Contract (AMC) for 100 Automatic Sliding & PRM Doors and 96 High-Velocity Commercial Air Curtains installed across Domestic Terminal T1, International Terminal T4, New Bus Lounges, and security gate portals. Over 2.5+ consecutive years of continuous 24/7 service delivery, Technocrats has achieved an unblemished record of ZERO PENALTIES imposed by AAI, maintaining 99.9%+ operational availability and setting the industry standard for mission-critical airport facility management.

2. Critical Equipment Scope & Technical Architecture

Equipment Category Qty Engineering Specifications & Operational Roles Airport Safety & Functional Utility
Automatic Sliding Glass Doors (Terminal Entry, Exit & Lounges) 100 Nos Microprocessor-controlled heavy-duty sliding operators (Dormakaba ES200 / ST Flex profiles); 12mm toughened safety glass; high-torque brushless DC motors, reinforced toothed belts, precision floor guides, EM locks & access control integration. High-speed contactless passenger throughput; active dual-motion radar & infrared presence curtains; emergency fail-safe battery breakout upon power loss.
Specialized PRM / Handicap Automated Doors Incl. in Doors 18mm high-durability PVC foam / glass barrier systems with low-energy automatic operators; motorized push-pad activation, delayed closing cycles, and barrier-free threshold clearance. 100% barrier-free accessibility compliance for Passengers with Reduced Mobility (PRM) across dedicated restroom corridors and assistance lounges.
High-Velocity Commercial Air Curtains (Gates & Airside Portals) 96 Nos Heavy-duty continuous-duty rated motors, 4-foot (1200 mm) modular lengths; 10–14 m/sec centrifugal air velocity; quiet acoustic profile (<67 dB); thermal overload protection; powder-coated MS casing for anti-corrosive coastal longevity. Creates an invisible dynamic air barrier across exterior portals; isolates conditioned terminal air, prevents tropical heat/humidity ingress, and eliminates outdoor insect/dust infiltration.

3. High-Density Operating Environment & Terminal Criticality

Operating within a 24/7 Category-I international airport imposes extreme performance and reliability demands:

  • Intensive High-Frequency Duty Cycles: Terminal doors operate continuously under peak-hour passenger surges, logging over 15,000–25,000 opening/closing cycles daily without allowance for mechanical fatigue or sensor drift.
  • Stringent Aviation Security & Emergency Compliance: Automatic doors are integrated with terminal fire alarm systems, access control, and emergency fail-safe breakout mechanisms to guarantee instant evacuation pathways.
  • HVAC Climate Separation & Energy Conservation: Chennai's coastal ambient temperatures regularly exceed 38°C with >80% relative humidity. The 96 air curtains protect indoor terminal climate, drastically lowering chiller HVAC energy consumption.
  • Corrosive Marine Environment Protection: Due to proximity to the Bay of Bengal coast, all mechanical chassis, guide tracks, and air curtain enclosures are treated with high-grade anti-corrosive coatings to prevent saline oxidation.

4. Comprehensive 2.5-Year AMC Framework & Service Architecture

To maintain flawless availability across 196 electro-mechanical assets without a single penalty over 2.5+ years, Technocrats implemented a multi-tiered Lifecycle Maintenance Protocol backed by dedicated on-site engineering resources:

1. Scheduled Preventive Maintenance (PPM)

  • Monthly & quarterly systematic health audits across all 100 doors & 96 air curtains.
  • Calibration of radar activation sensors & optical safety curtains to prevent false triggering.
  • High-precision drive belt tensioning, floor guide realignment, and roller carriage lubrication.
  • Air curtain motor winding insulation tests, impeller dynamic balancing, and air-filter sanitization.

3. Genuine OEM Spare Parts Buffer Management

  • Dedicated on-site bonded inventory of critical OEM spares (Dormakaba ES200 control units, transformers, optical sensors, EM locks, floor guides, toothed belts, backup batteries).
  • 100% genuine component replacement eliminating compatibility failures and voltage fluctuations.
  • Proactive wear-part replacement before end-of-life component degradation occurs.

2. 24/7 Rapid Incident Response Protocol

  • Dedicated team of factory-trained automation technicians stationed directly on-site at Chennai Airport.
  • Response SLA < 15 Minutes for critical boarding gate, bus lounge, and security portals.
  • Immediate on-site troubleshooting of control units, optical sensors, transformers, and power modules.
  • Zero disruption to passenger boarding schedules or airline operational workflows.

4. Zero-Penalty Compliance & Quality Governance

  • Comprehensive daily digital maintenance logs & joint periodic inspections with AAI Electrical Engineering.
  • Full alignment with DGCA, BCAS, and international airport safety and security guidelines.
  • Zero contractual non-conformances, zero safety breaches, and ZERO financial penalties levied across 30 consecutive service months.

5. Lifecycle Preventative Maintenance & Component Servicing Matrix

Subsystem / Component Service Frequency Technical Maintenance Scope & Inspection Criteria Performance Impact
Microprocessor Controllers & Sensors Monthly / Bi-Monthly Diagnostic parameter check, radar detection zone tuning, optical safety curtain testing, sensitivity adjustment for high ambient sunlight. Eliminates false open/close cycles; 100% anti-crush passenger safety.
Drive Motors, Belts & Floor Guides Quarterly / As Needed Belt tensioning, tooth wear inspection, trolley hanger alignment, floor guide track de-dusting, replacement of worn nylon runners. Smooth, whisper-quiet operation; prevents motor overload & premature belt failure.
Air Curtain Motors & Impellers Monthly Cleaning & Audit Dynamic centrifugal impeller balancing, motor thermal overload verification, air velocity measurement (10-14 m/s), intake grille cleansing. Maintains 100% thermal barrier efficiency; prevents terminal conditioned air loss.
Emergency Batteries & EM Locks Monthly Routine Test Mains power cut-off simulation, emergency opening verification, battery charge retention check, electromagnetic lock release verification. Guarantees fail-safe evacuation in emergency/fire alarm events.

6. Quantifiable Performance Metrics & Operational Benchmarks

2.5+ Years

Continuous AMC Tenure

Uninterrupted execution since Jan 2024

196 Assets

Active Systems Managed

100 Auto Doors + 96 Air Curtains

ZERO

Penalties Imposed

100% Contractual & SLA Compliance

99.9%+

Asset Uptime Record

Near-zero terminal downtime

7. Strategic Value & Project Outcomes Delivered to AAI

  • Flawless Zero-Penalty Track Record: Successfully maintained an unblemished operational record with zero penalties across 2.5+ years of intense 24/7 airport terminal operations, reflecting superior execution quality.
  • Seamless Passenger Mobility & Barrier-Free Accessibility: Facilitated uninterrupted transit for millions of domestic and international travelers, including full PRM handicap automation across specialized access points.
  • Significant HVAC Energy & Thermal Efficiency: Continuous operation of 96 air curtains prevented massive conditioned air loss across open terminal gates, generating substantial recurring electricity cost savings for AAI.
  • Extended Asset Lifespan & TCO Optimization: Rigorous preventative maintenance, dynamic alignment, and genuine OEM component replacements protected AAI's capital investment and maximized equipment lifecycle.

PREPARED & ISSUED BY

Technocrats Kohlhauer Infrastructure Pvt. Ltd. (TKIPL)

Technocrats Security Systems Pvt. Ltd.
Airport Entrance Automation & Infrastructure AMC Division
Works: C-2, Model Ind. Estate, Off Aarey Road, Goregaon (E), Mumbai - 400 063
Tel: +91 22 4248 0406 / 0480 | Web: www.automaticdoorsandgates.in

FACILITY & CLIENT ENDORSEMENT

Airports Authority of India (AAI)

Chennai International Airport (MAA)
Engineering Electrical & Terminal Operations Division
Meenambakkam, Chennai, Tamil Nadu - 600 027
Performance Status: 2.5+ Years Uninterrupted AMC | Zero Penalties

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