Atlas Copco
Atlas Copco Bolting Solutions | Hydraulic Torque Wrenches & Tensioners
Atlas Copco bolting solutions provide controlled, precise, and safe bolting for the most critical flanged joints in oil & gas, power generation, wind energy, structural steel, and heavy industrial applications. The portfolio includes hydraulic torque wrenches (square drive and low-profile hexagonal cassette types), hydraulic bolt tensioners, pneumatic torque wrenches, battery-powered bolting tools, and the Tensor ST series electric precision bolting systems — covering torque ranges from 135 Nm to over 75,000 Nm. Hydraulic torque wrenches in the Atlas Copco S-series deliver reaction-force-free operation and ±3% torque accuracy, eliminating the guesswork of manual or impact wrench bolting on pressure flanges, heat exchangers, pipeline valves, and structural connections. Atlas Copco bolt tensioners simultaneously load multiple studs on a flange, achieving uniform clamping force that prevents joint leakage under thermal cycling and pressure pulsation — a critical advantage in refinery and power plant applications where a single flange leak can trigger a forced outage. The Tensor ST battery electric bolting system brings digital tightening intelligence to field bolting, recording torque, angle, and bolt identity for every joint on a structure or rotating machine. For shutdown planners, mechanical integrity engineers, and HSE teams who cannot afford flange leaks, bolt fatigue failures, or uncontrolled manual bolting, Atlas Copco bolting solutions are the documented, traceable answer.
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Hydraulic Torque Wrenches (S-Series & L-Series)
Square drive and low-profile hexagonal cassette wrenches covering 135 Nm to 75,000+ Nm with ±3% torque accuracy for critical flanged joints.
Hydraulic Bolt Tensioners
Simultaneous multi-stud tensioning for uniform clamp load on large-diameter flanges, eliminating elastic interaction and joint relaxation.
Tensor ST Battery Electric Bolting System
Cordless, digitally controlled field bolting tool with onboard data recording for traceability on structural, rotating equipment, and pipeline joints.
Pneumatic & Cordless Impact Wrenches
High-speed pneumatic and battery impact tools for non-critical bolting applications requiring fast run-down and controlled final torque.
Hydraulic Pump Units & Accessories
Air-driven, electric, and battery-hydraulic pump units that power torque wrench and tensioner systems, with quick-connect hose sets for fast tool changes.
Flange Management & Joint Integrity Software
Digital tools for bolt load calculation, tightening sequence planning, and joint documentation compliant with ASME PCC-1 and EEMUA 218 standards.
Why Controlled Bolting Is Non-Negotiable for Pressure Flanges
Uncontrolled bolting — using impact wrenches, manual torque wrenches without calibration, or guess-work tightening — is the leading cause of flange leaks in process plant shutdowns. Inconsistent bolt load leads to gasket relaxation, thermal cycle fatigue, and ultimately joint failure. Atlas Copco hydraulic torque wrenches and tensioners eliminate this risk by applying precise, repeatable bolt load to every stud on a flange, regardless of operator technique or joint accessibility. The S-series wrenches operate through 360° of full-cycle rotation without needing reaction points on adjacent pipe, reducing both working time and the risk of damage to surrounding equipment. For refinery turnaround planners, a bolting programme using Atlas Copco tools means every opened and re-assembled joint is documented, torqued to specification, and signed off — satisfying both internal quality systems and regulatory inspection requirements. This traceability is increasingly mandated by national plant inspection regulations and process safety management (PSM) frameworks, making controlled bolting not just best practice but a compliance requirement.
Industries & Applications for Atlas Copco Bolting Solutions
Atlas Copco bolting tools are deployed wherever joint integrity is critical to safety, process containment, or structural performance. Oil and gas refineries and petrochemical plants use hydraulic torque wrenches and tensioners for every flange on heat exchangers, reactors, compressors, pumps, and pressure vessels — the backbone of turnaround bolting programmes. Power generation stations (thermal, nuclear, and combined-cycle) rely on Atlas Copco tensioners for steam turbine casing bolting and high-pressure steam line flanges, where uniform clamping and thermal stability are essential. Wind energy developers use large-capacity square drive wrenches for tower base flange bolting and nacelle structural joints. Shipbuilding and offshore platform fabricators specify Atlas Copco tools for hull structural connections and topside equipment foundations. Mining, cement, and steel plant maintenance teams use pneumatic and hydraulic wrenches for crusher, mill, and conveyor drivetrain bolting. Civil and structural steel erectors deploy Tensor ST field bolting systems for bridge and building structural connections.