The Enerpac Square Drive Hydraulic Torque Wrench Set, 37,965 Nm Torque, 2 1/2 in. Square Drive (RSQ28000ST) is engineered for the most demanding bolting applications, delivering a maximum torque output of 37,965 Nm with exceptional accuracy and repeatability. Designed to withstand intensive use in heavy industries such as oil and gas, power generation, shipbuilding, and large-scale construction, this high-capacity tool combines advanced engineering with practical usability to deliver reliable results where precision and durability are critical.

At the core of the RSQ28000ST is an innovative housing design that completely encloses all moving parts, minimising pinch points and reducing the risk of operator injury. This commitment to safety is paired with a robust mechanical construction consisting of only three moving parts, ensuring long service life and reduced maintenance requirements. The streamlined design not only simplifies operation but also maximises uptime on demanding worksites.

The torque wrench provides a 30–35° operating stroke, a key feature that boosts productivity by speeding up fastening cycles while preventing “tool lock on” – a common issue in some torque wrench designs. This ensures smooth, uninterrupted operation across a wide range of bolting tasks, even under challenging site conditions.

For added flexibility, the RSQ28000ST incorporates a pull-type square drive release mechanism, enabling fast and simple reversal of the drive for tightening or loosening tasks. This allows operators to adapt quickly without interrupting workflow. The reaction arm is fitted with a straightforward dial lock system, allowing rapid repositioning for different bolting angles and applications, reducing downtime during adjustments.

Practical handling has also been considered. The torque wrench is compatible with robust handles that can be mounted on either side or on top of the cassette. This versatility provides operators with improved manoeuvrability and safer control when working in confined or awkward positions. The power head and square drive combination accommodates standard impact-quality sockets, offering greater flexibility across multiple applications and helping reduce tooling costs.

Performance is at the forefront of this model, with constant torque output delivering an accuracy of ±3% across the full stroke. This ensures consistent and repeatable results, critical for maintaining joint integrity in high-load assemblies. In addition, users can apply the Enerpac rule of thumb for untightening, where loosening torque is approximately 250% of tightening torque, providing a clear guideline for practical use in the field.

The RSQ28000ST is supplied as a complete set, including the RSQ Square Drive Head, RSL Drive Unit with short Whip Hoses, and a Reaction Arm. To maintain system integrity and safe operation, it is recommended that the wrench is used with Enerpac THQ700 Series hoses. Compatibility with interchangeable hexagon cassettes further enhances its versatility, ensuring the tool adapts seamlessly to different bolting requirements.

Weighing 32.8 kg, the RSQ28000ST balances substantial power with a manageable form, making it a dependable choice for technicians handling large-scale bolting operations. With a 2 1/2 in. square drive and capability to operate at a maximum pressure of 690 bar, this wrench set is a robust solution engineered for accuracy, durability, and ease of use in the most challenging industrial environments.