
Base Foundation Tensioners
Aztec Bolting Services carries DS-17 base series tensioners that are built to meet explicit requirements to tighten foundation bolts. These base bolt tensioners can handle considerable use for crane slewing rings. They're also used on many different civil engineering projects for foundation bolting, including bridges and more.

Mono Single-Stage Tensioners
The DS-16 mono series single-stage tensioners meet extensive challenges daily for wind and power generation applications, slewing rings, and all critical and structural bolting. Its optional handle provides extra durability due to its integration over the tool's hydraulic connection, simplifying the management of the instrument. The handle can also provide additional safety to the operator by protecting the inlet connection and hose from unnecessary unloading.

Duo Multi-Stage Tensioners
Aztec Bolting Services carries DS-15 duo series multi-stage tensioners. Like single tensioners, duo tensioners also provide the resources to meet strenuous daily challenges for power generation applications, including wind turbines, as well as slewing rings, and all critical and structural bolting. The DS-15 duo tensioners also have an optional long-lasting handle benefitting the safety and speed of the operator called the TWIST-GRIP.