Bolting technology and torque wrenches

Electric Nutrunners are the right choice for applications with high requirements for accuracy, process reliability and documentation. They are frequently used in industrial series production, where controlled and traceable bolting operations are essential. Thanks to precise control and monitoring technology, both torque and angle can be accurately supervised. Electric torque wrenches enable reproducible results and can be easily integrated into automated or semi-automated manufacturing processes.

Pneumatic Nutrunners are characterized by their robust design and high durability. They are particularly well suited for industrial environments where compressed air is already available and reliable bolting technology is required. These tools offer an excellent power-to-weight ratio and are ideal for repetitive bolting tasks with medium torque ranges, where speed and long service life are key factors.

Hydraulic torque wrenches are used wherever very high torque levels are required – for example in plant engineering, steel construction or the energy sector. They deliver maximum power combined with high precision and safety. Thanks to the hydraulic drive system, even large bolted joints can be tightened or loosened in a controlled and uniform manner. Hydraulic torque wrenches are particularly well suited for critical bolting applications where exact torque values are essential, even under confined or challenging space conditions.

Tensioners are not torque wrenches in the strict sense, but they play an important role in bolting technology and industrial tensioning processes. They are used to apply, hold or preload components in a controlled manner – often in combination with hydraulic systems. In industrial applications, tensioning cylinders ensure uniform force distribution and high process reliability, for example in assembly, testing or manufacturing operations. They complement torque wrenches wherever precise clamping or preload forces are required in addition to bolting.

Manual torque wrenches are used when bolted joints need to be tightened or loosened precisely without an external power source. They are particularly suitable for maintenance tasks, smaller assembly operations, or job sites where electric or hydraulic systems are not available or not required. Thanks to their simple handling and robust design, manual torque wrenches provide controlled force transmission and are ideal for applications with low to medium torque levels, where cost efficiency and flexibility are key priorities.

Hydraulic power packs serve as the energy source for hydraulic torque wrenches and tensioners. They generate the required hydraulic pressure to deliver very high forces precisely, uniformly and in a controlled manner, making them a core component of high-performance bolting systems.
Depending on their configuration, hydraulic power units can also perform control, monitoring and documentation functions. In addition to precise pressure and torque control, certain variants enable angle monitoring as well as documentation of bolting data. This makes them particularly suitable for applications with high demands on process reliability, traceability and quality assurance.
Hydraulic power units are available for both stationary and mobile use and can be flexibly matched to different tools, torque ranges and industrial application scenarios.