Recently, we supplied 90 units of Triple Stringing Pulley, model SHSQN320X60(S) to a power construction contractor in Thailand. The pulleys are used for triple-bundled conductor stringing on a new high-voltage transmission line. After several sections of the line were completed, the customer reported that the pulleys ran smoothly, protected the conductors well, and helped improve overall stringing efficiency.
Transmission line construction in Thailand has its own characteristics and challenges. Many lines pass through mountainous terrain, forests and agricultural areas, involving frequent crossings over roads, rivers and farmland. At the same time, the tropical climate brings high humidity and frequent rainfall, which puts higher demands on the corrosion resistance and bearing sealing of stringing blocks. With the increasing use of triple-bundled conductors, any mismatch between pulley design and conductor size can easily lead to surface scratches, twisting, or local stress concentration on the conductor.
After studying the conductor size, bundle spacing and crossing conditions of the project, we recommended the Triple Stringing Pulley SHSQN320X60(S) for this Thai contractor:
The triple-sheave design is specially suited for triple-bundled conductor stringing, helping keep each subconductor under similar tension and reducing the risk of twisting or entanglement.
Each pulley is equipped with 320*60 mm nylon sheaves, with a smooth groove profile and adequate strength. This structure provides a good balance between mechanical strength and surface protection, effectively reducing conductor scratches and dents during passage.
The pulley frame uses a reinforced side-plate structure and high-quality rotation bearings, designed to cope with Thailand’s high-temperature, high-humidity and long-duration operation requirements.
The SHSQN320X60(S) can be easily integrated into the customer’s existing stringing equipment set, including their current stringing pulley blocks, hydraulic cable pullers and tensioners, ensuring convenient installation and good compatibility on site.
During field operation, the site engineers observed that, compared with their older pulley models, the Triple Stringing Pulley SHSQN320X60(S) delivered much better performance in terms of rotation smoothness, conductor passage and behaviour during rainy conditions. Conductor vibration was reduced, and the sag and tension of triple-bundled conductors were easier to control. As a result, there were almost no stringing problems attributable to the pulleys, and rework caused by conductor surface damage was significantly reduced.
At the end of the project, the Thai customer confirmed that this batch of SHSQN320X60(S) triple stringing pulleys helped them save considerable time on adjustment and rework, increased daily stringing output, and improved the final conductor quality. They are planning to continue using the same model in upcoming line refurbishment and new-build projects, and are also willing to recommend our triple stringing pulleys to other local contractors as a preferred choice for bundled conductor stringing in Thailand.
Recently, we supplied 90 units of Triple Stringing Pulley, model SHSQN320X60(S) to a power construction contractor in Thailand. The pulleys are used for triple-bundled conductor stringing on a new high-voltage transmission line. After several sections of the line were completed, the customer reported that the pulleys ran smoothly, protected the conductors well, and helped improve overall stringing efficiency.
Transmission line construction in Thailand has its own characteristics and challenges. Many lines pass through mountainous terrain, forests and agricultural areas, involving frequent crossings over roads, rivers and farmland. At the same time, the tropical climate brings high humidity and frequent rainfall, which puts higher demands on the corrosion resistance and bearing sealing of stringing blocks. With the increasing use of triple-bundled conductors, any mismatch between pulley design and conductor size can easily lead to surface scratches, twisting, or local stress concentration on the conductor.
After studying the conductor size, bundle spacing and crossing conditions of the project, we recommended the Triple Stringing Pulley SHSQN320X60(S) for this Thai contractor:
The triple-sheave design is specially suited for triple-bundled conductor stringing, helping keep each subconductor under similar tension and reducing the risk of twisting or entanglement.
Each pulley is equipped with 320*60 mm nylon sheaves, with a smooth groove profile and adequate strength. This structure provides a good balance between mechanical strength and surface protection, effectively reducing conductor scratches and dents during passage.
The pulley frame uses a reinforced side-plate structure and high-quality rotation bearings, designed to cope with Thailand’s high-temperature, high-humidity and long-duration operation requirements.
The SHSQN320X60(S) can be easily integrated into the customer’s existing stringing equipment set, including their current stringing pulley blocks, hydraulic cable pullers and tensioners, ensuring convenient installation and good compatibility on site.
During field operation, the site engineers observed that, compared with their older pulley models, the Triple Stringing Pulley SHSQN320X60(S) delivered much better performance in terms of rotation smoothness, conductor passage and behaviour during rainy conditions. Conductor vibration was reduced, and the sag and tension of triple-bundled conductors were easier to control. As a result, there were almost no stringing problems attributable to the pulleys, and rework caused by conductor surface damage was significantly reduced.
At the end of the project, the Thai customer confirmed that this batch of SHSQN320X60(S) triple stringing pulleys helped them save considerable time on adjustment and rework, increased daily stringing output, and improved the final conductor quality. They are planning to continue using the same model in upcoming line refurbishment and new-build projects, and are also willing to recommend our triple stringing pulleys to other local contractors as a preferred choice for bundled conductor stringing in Thailand.
