
A smart hydraulic tensioning system with built-in guidance, data handling, and easy process setup.
Atlas Copco STT is a hydraulic bolt tensioner family designed for controlled, repeatable work in industrial assembly and maintenance environments.
It combines connectivity, data output, and simple configuration so teams can set up the tightening process, track it, and keep operations consistent.
How do I choose the right model for my application?
Step 1: Define the joint and the industrial application.
Step 2: Match the required tensioning setup to the point of use.
Step 3: Select the configuration that fits your workflow, handling needs, and data process.
Can the system handle different tightening setups?
Yes.
Pressure, torque, and angle can be configured easily, and multistage functionality is available.
How is job data stored and transferred?
Data can be output through USB or USB-C drives.
The system also supports ToolsNet8 for storage and analysis, plus an open protocol for sharing tool data.
What is the benefit of the built-in barcode scanner?
It helps with fast identification and supports a more organized work process.
Can tightening programs be created?
Yes.
HTML connectivity is available to create tightening programs.
What is included in the full Smart Tensioning System?
The complete system consists of three components: STT, PFHC, and the SP2000 powerpack.
| Description | Tensioner stand-alone Ordering No. | Kit complete (Tool+Frame+Box) Ordering No. |
|---|---|---|
| STT-M36 PTA Tensioner | 8434221016 | 8434221000 |
| STT-M42 PTA Tensioner | 8434221019 | 8434221001 |
| STT-M48 PTA Tensioner | 8434221022 | 8434221002 |
| STT-M56 PTA Tensioner | 8434221025 | 8434221003 |
| STT-M64 PTA Tensioner | 8434221028 | 8434221004 |
| STT-M72 PTA Tensioner | 8434221031 | 8434221005 |
The complete accessories tables, exactly as they appear in the Atlas Copco catalog – every ordering number, dimension and drawing. The PDF attached to this page is also available for download.

The HADI Technologies team will help you select the right configuration, verify application requirements and provide technical information about Atlas Copco STT Hydraulic Bolt Tensioners.
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The HADI product development and engineering team can adapt a tool, product or system to your application.
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