The Atlas Copco EP20XS HR20 is a non-shut-off pneumatic pulse tool developed for professional fastening and industrial assembly applications. As part of the Atlas Copco ErgoPulse Non-shut-off range, it is designed for production environments that require efficient fastening, practical operator handling and reliable performance across repetitive assembly tasks.
Technical Specifications
| Dimension & Weight | |
|---|---|
| Air inlet thread | 3/8 in |
| Bolt size | M20 mm |
| CS distance | 43 mm |
| Length | 235 mm |
| Output size | 3/4″ |
| Recommended hose size | 13 mm |
| Square drive | 3/4 in |
| Weight | 4.5 kg |
| Speed | |
|---|---|
| Free speed | 3000 r/min |
| Capacity | |
|---|---|
| Oil volume in full Pulse unit | 66 ml |
| Air Information | |
|---|---|
| Air consumption under load | 26 l/s |
| Max working pressure | 7 bar |
| Nominal working pressure | 6.3 bar |
| Torque | |
|---|---|
| Fixed transducer torque CCW service | 420 Nm |
| Torque range max | 400 Nm |
| Torque range min | 300 Nm |
| Noise & Vibrations | |
|---|---|
| Sound power | 97 dB(A) |
| Sound pressure | 86 dB(A) |
| Sound standard | ISO15744 |
| Sound uncertainty | 3 dB(A) |
| Vibration standard | ISO28927-2 |
| Vibration uncertainty | 1.2 m/s2 |
| Vibration value | 6.5 m/s2 |
| Certifications, Standards & Directives | |
|---|---|
| EAC certified | Yes |
| EU directives | 2006/42/EC (MD) |
| EC standard | EN ISO 11148-6:2012 |
| UK legislation | S.I. 2008/1597 |
| UK standard | EN ISO 11148-6:2012 |
| Design & Functions | |
|---|---|
| Model type | Pistol |
| Output type | Square, Male |
| Pulsing freq. CCW | 7-12 Hz |
| SCIP | 9e6972b2-2f4b-487b-bd1c-d051871d8321 |
| Shut-off | No |
Atlas Copco EP20XS HR20 ErgoPulse Non-Shut-Off Tool
The Atlas Copco EP20XS HR20 is a pistol-type non-shut-off pneumatic pulse tool designed for higher-torque industrial fastening and assembly applications. It provides a torque range of 300–400 Nm and a free speed of 3,000 r/min, making it suitable for fastening processes where this torque capacity, speed and drive configuration match the joint requirements.
The EP20XS HR20 is specified for M20 bolt size applications and uses a 3/4 inch male square output with a 3/4 inch square drive. The tool has an overall length of 235 mm, a CS distance of 43 mm and a weight of 4.5 kg. These dimensions and the larger drive size should be considered when evaluating access around the fastening point and operator handling at the workstation.
For pneumatic installation, the model operates at a nominal working pressure of 6.3 bar and a maximum working pressure of 7 bar. Air consumption under load is 26 l/s, while the recommended hose size is 13 mm and the air inlet thread is 3/8 inch.
Applications
The Atlas Copco EP20XS HR20 is intended for professional industrial fastening applications requiring a 300–400 Nm torque range, 3,000 r/min free speed and 3/4 inch square drive. Its M20 bolt size specification and pistol configuration make it suitable for assembly operations where these technical characteristics correspond to the fastening process.
As a non-shut-off pulse tool, the EP20XS HR20 belongs to the Atlas Copco ErgoPulse – Non-shut-off range. Buyers can compare models in this category according to required torque, bolt size, drive size, pulsing characteristics, air consumption and physical dimensions.
Key Features
- Non-shut-off pneumatic pulse tool
- Pistol model configuration
- Torque range: 300–400 Nm
- Fixed transducer torque CCW service: 420 Nm
- Free speed: 3,000 r/min
- M20 bolt size
- 3/4 inch male square output
- 3/4 inch square drive
- Pulsing frequency CCW: 7–12 Hz
- Oil volume in full pulse unit: 66 ml
- Nominal working pressure: 6.3 bar
- Maximum working pressure: 7 bar
- Air consumption under load: 26 l/s
- Recommended hose size: 13 mm
- Air inlet thread: 3/8 inch
- Weight: 4.5 kg
- Length: 235 mm
- CS distance: 43 mm
Why Choose the Atlas Copco EP20XS HR20?
The Atlas Copco EP20XS HR20 combines a 300–400 Nm torque range with a 3,000 r/min free speed and 3/4 inch square drive. For buyers, the main selection points are whether this torque range matches the fastening requirement, whether the M20 bolt size and 3/4 inch drive are compatible with the application, and whether the available compressed-air system can provide the required pressure and airflow.
The model also has a listed CCW pulsing frequency of 7–12 Hz and a fixed transducer torque CCW service value of 420 Nm. Its 235 mm overall length and 4.5 kg weight should be considered when planning the workstation and evaluating access and handling requirements.
Pulse Unit and Pneumatic Requirements
The EP20XS HR20 has an oil volume of 66 ml in the full pulse unit. For compressed-air operation, it is specified for a nominal working pressure of 6.3 bar and a maximum working pressure of 7 bar, with air consumption under load of 26 l/s.
Atlas Copco specifies a 13 mm recommended hose size and a 3/8 inch air inlet thread. Before installation, buyers should confirm that the available compressed-air system can maintain the required airflow and pressure at the workstation.
Noise, Vibration and Standards
The EP20XS HR20 has a sound power level of 97 dB(A) and a sound pressure level of 86 dB(A), measured according to ISO15744 with a sound uncertainty of 3 dB(A). Its listed vibration value is 6.5 m/s2, with a vibration uncertainty of 1.2 m/s2, according to ISO28927-2.
The model is EAC certified. Its listed EC standard is EN ISO 11148-6:2012 and the applicable EU directive is 2006/42/EC (MD). UK legislation is listed as S.I. 2008/1597, with EN ISO 11148-6:2012 listed as the UK standard.
Related Atlas Copco Pneumatic Assembly Tools
Middle East ABC supplies a range of Atlas Copco Pneumatic Assembly Tools for professional fastening and industrial assembly requirements. Buyers looking for other pulse-tool configurations can also compare products within the ErgoPulse – Non-shut-off category according to torque range, bolt size, drive size, speed, air requirements and tool dimensions.
Atlas Copco EP20XS HR20 Availability
Contact Middle East ABC for technical product information, availability and quotation support for the Atlas Copco EP20XS HR20 and other Atlas Copco pneumatic assembly tools.



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