AESS proudly partners with AS Tech (Germany) to offer high-precision controlled bolting and stud bolt tensioning solutions built for demanding industrial environments. These systems are widely used in refineries, petrochemical plants, power stations, and heavy engineering, where accurate preload, safety, and speed are critical.

Engineered for tight spaces, critical joints, and heavy-load bolting, AS Tech’s hydraulic tensioning systems ensure consistent bolt load without relying on torque. This results in precise, reliable, and uniform bolt tension that outperforms traditional tightening methods.

🔧 Major Product Categories

1. Single & Multi-Stage Tensioner Units

• Designed for heavy engineering and critical load applications

• Available in various pressure capacities (up to 2500 bar)

• Custom-built options for large flanges and high-tension joints

• Suitable for industries like oil & gas, power plants, and wind turbines

2. Automatic Screw Clamping Devices

• Automated bolt clamping system that eliminates manual screwing and unscrewing

• Speeds up assembly time by up to 50%

• Ensures uniform tensioning across multiple studs

• Reduces operator fatigue and increases safety in repetitive bolting operations

3. Hydraulic Pumps

• Manual, Pneumatic, and Electric models

• Pressure range: 700 bar to 2500 bar

• Available in single-stage and two-stage variants

• Compact and portable designs for field and plant use

• Electric models include built-in safety features and dual-port options for multiple tensioners

4. Monitoring & Documentation System (BomAS / BodAS)

• BomAS: Automatic measuring of physical parameters using wireless sensors

• BodAS: Real-time data capture, storage, and export

• Wireless data transmission via 2.4 GHz

• Exportable reports in CSV format for traceability

• Compatible with Windows for easy access and printing

• Enhances safety and quality control by documenting each tensioning cycle