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On bridge, water conservancy, and coastal construction sites with high salt fog levels, ordinary carbon steel tensioning machines will soon rust, seize up, and lose precision. And your project schedule cannot afford equipment failures.
SNC rigid stainless steel tensioning machines are designed precisely for this purpose: featuring a genuine high-strength stainless steel body, they address the two major pain points—corrosion and lack of rigidity—at their root.
The entire machine is constructed from precipitation-hardened stainless steel or 304/316L-grade stainless steel, with a yield strength far exceeding that of ordinary carbon steel. Even under frequent impacts and heavy-load tensioning, the frame exhibits no plastic deformation, maintaining the coaxiality of the hydraulic cylinders over the long term to ensure that every tensioning operation is uniform and smooth.
Equipped with a dual-line hydraulic system, tensioning and return strokes are controlled independently to prevent hydraulic line interference. Optional electric high-pressure pumps or manual pumps are available, with adjustable flow rates to accommodate the varying paces of precast plant assembly lines (rapid tensioning) and field sites (portable slow tensioning).
Building on the base model, a digital data acquisition module can be added: it automatically records the tension force, elongation, and holding time for each strand and generates Excel/PDF reports. Manual data entry is eliminated, directly meeting bridge project acceptance requirements.
All hydraulic couplings feature a quick-connect design that prevents disconnection and explosion; paired with mechanical self-locking anchors, this ensures that prestressing tendons will not retract instantly even in the event of an unexpected pressure drop, safeguarding operator safety.
The stainless steel body directly resists chloride ion corrosion, requiring no major repairs for 3 years.
Resists corrosion in high-humidity environments; tensioning data is traceable, meeting the archiving requirements for water conservancy projects.
No performance degradation due to overheating during continuous 8-hour operation, increasing daily production capacity by 20%.
Flexible deployment in confined spaces; the front-clamping mode eliminates the need for excessively long prestressing strands, saving 5% in material costs.
We have specialized in the manufacture of prestressing equipment for over 15 years and hold patents for the welding and heat treatment processes of stainless steel pressure cylinders. Before leaving the factory, every machine undergoes a pressure retention test at 1.5 times the rated pressure, as well as random salt spray corrosion testing.
We support custom manufacturing: extended stroke, special threaded connections, remote control systems, and more—all can be manufactured according to your drawings.
