COOLING TOWER - SCT SERIES

Internal Coil System (Primary Loop)

This fully enclosed circuit circulates heated process water through stainless steel heat-exchange coils. Because the water never evaporates or contacts external contaminants, it maintains exceptional purity over time. This prevents limescale buildup, maximizes heat-transfer efficiency, and significantly extends the service life of machinery, molds, and sensitive industrial equipment.

External Sprinkler System

The external loop draws water from the cooling basin and sprays it over the heat-exchange coils and cooling media through a finely engineered sprinkler system. After cooling, water returns to the basin for recirculation. Since this loop never enters the internal cooling circuit, it fully isolates impurities, sediments, algae, and minerals — ensuring the internal loop remains completely scale-free.

Beyond selecting premium materials, every SCT unit undergoes rigorous chemical corrosion testing and extreme-environment verification. This ensures complete resistance to acid rain, salt exposure, airborne industrial particulates, and other corrosive conditions. The SCT Series fundamentally eliminates the risks of corrosion and structural fatigue, delivering a service life of **over 30 years**, far exceeding traditional cooling equipment.

Support-Free Bending Structural Shell

The SCT stainless-steel outer shell adopts Linkcooling’s exclusive Support-Free Bending Technology, a precision-engineered structural solution that replaces traditional bolt-mounted support frames. By using laser-cut stainless-steel panels with mathematically calculated bending angles, the design eliminates seams, stress concentration points, and corrosion-prone joints found in conventional cooling towers. The result is a seamless, bolt-free, weld-free integrated shell that removes all structural weak points.

Structural Performance

• Structural rigidity improved by up to 150%

• Vibration transmission reduced by 70%, achieving near-zero resonance operation

• Certified for Seismic Grade 6 (IBC 2012 Standard)

• Withstands wind pressure up to 2.0 kPa, capable of resisting Level-17 typhoon winds

Advantages of the Support-Free Bending Technology

• Maximum Reliability: Proven through extreme seismic and wind-load testing

• Installation Revolution: On-site installation time reduced by 75%

• Cost Optimization: Total lifecycle cost reduced by 60%

• Environmental Adaptability: Stable performance from Arctic regions to equatorial climates

The Linkcooling SCT Series features a fully modular cooling fin system, where each ABS reusable fin module is designed as an independent, interchangeable component. Every fin module follows a standardized dimension and uses a snap-fit mechanical locking structure, allowing fast installation and replacement without tools and without dismantling other parts of the cooling tower.

The core of any cooling tower lies in its ability to dissipate heat efficiently — and the design and material of the cooling fins play a decisive role. They affect not only heat-transfer performance but also long-term durability and maintenance efficiency. Their primary functions include:

• Increasing the contact surface area between water and air

• Extending residence time for improved heat exchange

• Promoting uniform water distribution across the coil

The SCT Series uses high-strength ABS (Acrylonitrile Butadiene Styrene), a material known for its excellent UV resistance and high heat-deflection temperature (HDT). These properties fundamentally prevent brittleness, cracking, and deformation, ensuring long-term mechanical stability and structural integrity.

Modular Detachable Design

The SCT adopts a modular, detachable fin architecture, transforming cooling fins from traditional fixed fill materials into individually replaceable standardized components. This innovative structure enables online maintenance, allowing cleaning or replacement of a single fin module without system shutdown, ensuring continuous cooling tower operation.

The heat exchange coil is the thermal core of a closed-circuit cooling system, and its performance directly affects cooling efficiency, durability, maintenance convenience, and total ownership cost.

Linkcooling offers a three-tier coil solution to meet different site conditions, environmental challenges, and operational goals.

1. High-Efficiency Red Copper Coils

In well-controlled environments, classic engineering solutions often provide the best results. For applications with stable water quality and clean environmental conditions, high-efficiency red copper coils remain the ideal choice due to their unmatched physical properties.

• Exceptional Thermal Conductivity: Copper offers the highest heat-transfer performance among common coil materials, delivering superior initial cooling efficiency.

• Ideal Applications: Sites without strong acids/alkalis and systems requiring maximum initial cooling performance.

• Proven Reliability: As a time-tested technology, copper coils offer strong efficiency and decades of established industry experience.

3. Removable Coil Design

The SCT Series features an innovative individually removable coil design — not because coils are prone to failure, but because Linkcooling anticipates long-term maintenance needs:

• Solves potential maintenance bottlenecks after years of operation.

• Evolves from full-coil replacement to single-tube replacement, reducing maintenance costs and saving more than 80% service time.

The SCT Series features a Quick-Release Spray Distribution System, engineered with snap-fit connectors and anti-drift splash-control designs to eliminate the maintenance difficulties and water waste common in traditional spray piping. This system ensures uniform water distribution and introduces a true “tool-free maintenance” breakthrough for cooling tower operations.

The SCT spray system incorporates patented L-shaped drift curtains and splash-control plates that intercept water droplets carried by fan airflow. At the air inlet, angled drift eliminators replace conventional intake screens to dramatically reduce splash-out during operation.

Root Causes of Drift Loss in Traditional Cooling Towers

• Airflow drag effect: High-speed fans carry water droplets out of the tower.

• Impact and rebound: Droplets hitting internal structures create fine mist.

• Inlet splash-out: Water near the lower intake gets pulled outward by air turbulence.

Water-Saving Technology of the Linkcooling SCT Series

Precision Spray Distribution Design

• Uniform spray disk: Ensures over 95% surface wetting coverage, eliminating dry spots.

• L-shaped patented drift curtain: Intercepts more than 99% of large droplets.

• Mist-control nozzles: Optimized droplet size to reduce fine mist carried by airflow.

System Matching Optimization

• Fan performance tuning: Ensures optimal airflow per tonnage, preventing over-drafting.

• Optimized water velocity: Maintained within the ideal distribution range (1.5–2.5 m/s).

• Pressure stabilization: Maintains balanced negative pressure inside the tower to reduce splash-out.

Enhanced Maintainability

• Quick-release structure: Simplifies routine cleaning while maintaining peak performance.

• Anti-clogging design: Large-flow nozzles reduce scaling issues and improve reliability.

Tap water typically contains minerals such as calcium and magnesium, which form scale when heated or evaporated. Scale buildup reduces heat exchange efficiency, clogs piping, and may cause equipment to overheat and shut down — making it a major threat to cooling-system performance.

The SCT Series employs a multi-layered scale-prevention strategy using a closed-loop internal water circuit to fundamentally eliminate scale formation inside the piping. It is further enhanced with an Electronic Anti-Scaling System to reduce scale formation in the outer circulation loop, achieving the ideal state of “scale-free operation inside and out.”

How the Electronic Anti-Scaling System Works

By generating an electromagnetic field, the system induces high-speed motion of calcium and magnesium ions, preventing them from crystallizing and depositing onto surfaces — effectively suppressing scale formation.

• Advantages: Easily installed on pipelines or cooling towers with minimal system modification and simple maintenance.

• Limitations: Most effective on specific types of scale; performance may decrease in extremely hard water conditions.

Advantages of the SCT Series

Unlike systems that rely on a single physical descaling method, the SCT Series integrates complete physical separation of internal and external water circuits together with electronic anti-scaling assistance to create a dual-layer protection mechanism. This ensures long-term system reliability, high cooling efficiency, and a truly scale-free operating environment.

The SCT Series cooling towers adopt a direct-drive fan design, featuring a standardized 1HP direct-drive motor across the entire product line. With no belts or gears, maintenance is greatly simplified, and the unified fan-motor configuration ensures full compatibility across all SCT models—significantly reducing spare-parts management and service complexity.

Multiple Pole Options for Different Operating Requirements

Unlike traditional cooling towers that require different motor horsepower for each model, the SCT Series uses multi-pole motor configurations offering three selectable operating speeds:

• 8-pole (Standard): Balanced performance and reliability.

• 10-pole (Low-Noise): Lower rotational speed for quieter operation in noise-sensitive environments.

• 6-pole (High-Efficiency): Higher rotational speed suitable for increased thermal load requirements.

Customers can freely select the most suitable configuration based on application conditions and site requirements, achieving the ideal balance between low noise, stability, and cooling efficiency.

Integrated Design for Lower Maintenance and Inventory Costs

The standardized design delivers two major benefits:

• Unified Spare Parts: All motors and fan components use the same specifications, meaning customers only need a single spare-part model to support the entire SCT Series—reducing storage and maintenance costs.

• Minimal Maintenance: The direct-drive design eliminates belts and gears, requires no lubrication, and significantly lowers long-term operational costs.

Optional Upgrade: Multi-Speed Temperature-Controlled EC Fan (Requires Thermostat)

To meet the combined needs of energy savings and high performance, Linkcooling offers an optional customized multi-speed, temperature-controlled EC fan system.

With a multi-stage controller, the EC fan maintains stable temperature regulation while reducing energy consumption.
Test results show that EC fans reduce power usage by approximately 15% and current draw by about 20% compared to traditional fans, significantly improving overall system efficiency.