Details

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Cooling Tower Fan Repair by EKG M&E Sdn Bhd

In the high-humidity environment of Kuala Lumpur and Selangor, the cooling tower fan is the primary mechanical driver for heat rejection. Operating in a constant 100% humidity "rain zone," these fans are subject to intense corrosive stress, leading to blade fatigue, bearing failure, and gearbox leaks. A faulty fan doesn't just reduce efficiency—it causes the Chiller plant to work harder, spiking your TNB bills or leading to a total system trip.

EKG M&E Sdn Bhd provides specialized mechanical restoration to ensure your airflow remains at its design Cubic Meters per Hour (CMH).

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1. Key Repair & Restoration Zones

As an HVAC and Clean Air Specialist, we focus on the "Drive Train" of the fan assembly:

A. Axial Blade Repair & Pitch Alignment

Over time, fiberglass (FRP) or aluminum blades can develop leading-edge erosion or cracks.

• The Repair: We perform structural FRP patching and UV-resistant recoating.

• The Calibration: We use digital inclinometers to ensure every blade is set to the exact same Pitch Angle. Even a 0.5 difference creates an aerodynamic imbalance that causes vibration.

B. Bearing & Shaft Overhaul

A "screeching" or "grinding" noise is a sign of bearing race failure.

• The Repair: We replace worn bearings with high-load, sealed-for-life units. We also perform Laser Alignment on the fan shaft to ensure it is perfectly perpendicular to the motor/gearbox, preventing "Side-Loading" that prematurely destroys new bearings.

C. Gearbox & Belt Drive Service

For larger towers, the gearbox is a critical failure point.

• The Repair: We perform oil seal replacements to stop leaks and inspect the internal "Backlash" of the gears. For belt-driven units, we replace weathered belts and align the pulleys to ensure maximum torque transfer without slipping.

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2. Vibration & Electrical Optimization

A fan repair is only complete once it is electronically balanced and controlled.

• In-Situ Dynamic Balancing:

  Using laser accelerometers, we balance the fan assembly while it is mounted in the tower. This achieves ISO 1940 G2.5 standards, eliminating the vibration that cracks the tower's FRP casing.

• VFD Recalibration:

  We integrate and program Variable Frequency Drives (VFDs) for the fan motor. This allows for a "Soft-Start," preventing the mechanical shock of a sudden 100% power surge (Inrush Current), which extends the life of the repair by years.

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3. Fan Health Performance Matrix

Component	Symptom of Failure	EKG M&E Rectification
Blades	High Vibration / Low Airflow.	Structural Repair & Pitch Calibration.
Motor/Bearings	Grinding Noise / High Amps.	Replacement & Laser Alignment.
Gearbox/Belts	Oil Leaks / Screeching.	Seal Replacement & Tensioning.
Fan Shroud	Rubbing Scrapes / Noise.	Structural Centering & Clearance Check.

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Why Choose EKG M&E Sdn Bhd?

• Thermal Capacity Audit: After the repair, we use calibrated anemometers to verify that the fan is pulling the required volume of air to meet your Chiller's "Approach Temperature."

• Structural Safety: We inspect the fan's mounting beams for rust and fatigue, ensuring the restored fan doesn't collapse into the tower.

• Strategic Support: Based in Kuala Lumpur, we provide turnkey fan overhauls, motor rewinding, and scheduled maintenance for commercial and industrial facilities.