A cordless screwdriver used in assembly must reliably reach the required torque. Depending on the joint, it should also evaluate every tightening and store the results. The TorqBee series by HS-Technik range from shut-off screwdrivers with a clutch to EC screwdrivers with a sensor, from 0.8 to 1250 Nm.
DISA AG Sarnen supplies eight TorqBee series and the short TBASL-x angle screwdriver by HS-Technik. This guide shows the criteria for your choice. You will find all tools in the category Cordless screwdriver technology.
The series at a glance
TorqBee Light
Programmable shut-off screwdriver, result shown by status LED.
Clutch · 1 to 100 Nm · pistol, angle, inline
TorqBee SO
Shut-off screwdriver with OLED display and result memory.
Clutch · 1 to 100 Nm · pistol, angle, inline
TorqBee SOP
Shut-off screwdriver with reaction torque sensor and OK/NOK evaluation.
Clutch and sensor · 1 to 100 Nm · pistol, angle, inline
TorqBee ECO
EC screwdriver with reaction torque sensor.
Reaction sensor · 2 to 120 Nm · pistol, angle, inline
TorqBee EC
EC screwdriver with rotating torque and angle sensor.
Rotating sensor · 0.8 to 120 Nm · pistol, angle, inline
TorqBee EC²
EC screwdriver with rotating sensor and redundant reaction sensor.
Two sensors · 0.8 to 120 Nm · pistol, angle, inline
TorqBee HT ECO
EC screwdriver for high torques, with reaction sensor.
Reaction sensor · 50 to 1250 Nm · pistol, angle
TorqBee HT EC
EC screwdriver for high torques, with rotating sensor.
Rotating sensor · 50 to 1250 Nm · pistol, angle
TBASL-x
Extremely short angle screwdriver for confined spaces.
Clutch · 1 to 20 Nm · angle
All series compared
| Series | Shut-off and sensors | Torque | Designs | Machine capability | Result memory | WLAN and barcode scanner |
|---|---|---|---|---|---|---|
| TorqBee Light | Precision shut-off clutch | 1 to 100 Nm | Pistol, angle, inline | ±10 % | – (status LED display) | – |
| TorqBee SO | Precision shut-off clutch | 1 to 100 Nm | Pistol, angle, inline | ±10 % | min. 150,000, with current and angle curve | optional |
| TorqBee SOP | Precision shut-off clutch and reaction torque sensor | 1 to 100 Nm | Pistol, angle, inline | ±10 % | min. 150,000, with torque and angle curve | optional |
| TorqBee ECO | Reaction torque sensor | 2 to 120 Nm | Pistol, angle, inline | ±7 % | min. 150,000, with torque and angle curve | optional |
| TorqBee EC | Rotating torque and angle sensor | 0.8 to 120 Nm | Pistol, angle, inline | ±7 % | min. 150,000, with torque and angle curve | optional |
| TorqBee EC² | Rotating torque and angle sensor and redundant reaction sensor | 0.8 to 120 Nm | Pistol, angle, inline | ±7 % | min. 150,000, with torque and angle curve | optional |
| TorqBee HT ECO | Reaction torque sensor | 50 to 1250 Nm | Pistol, angle | ±7 % | min. 150,000, with torque and angle curve | optional |
| TorqBee HT EC | Rotating torque and angle sensor | 50 to 1250 Nm | Pistol, angle | ±7 % | min. 150,000, with torque and angle curve | optional |
| TBASL-x | Precision shut-off clutch | 1 to 20 Nm | Angle (extremely short) | – | – (OK/NOK display by LED) | – |
All values are taken from the HS-Technik data sheets and product pages. Torque machine capability according to VDI/VDE 2645 Part 2, each with Cm > 2.00 and Cmk > 1.67. The torque applies to the whole series; the individual models cover partial ranges. – means: not stated in the data sheet.
Four selection criteria
1. Shut-off and sensors
- Mechanical precision shut-off clutch: Light, SO and TBASL-x
- Clutch with additional reaction torque sensor, the clutch is checked directly: SOP
- EC screwdriver with reaction torque sensor: ECO and HT ECO
- Rotating torque and angle sensor: EC and HT EC, the EC² additionally has a redundant reaction sensor
2. Torque and design
- 1 to 20 Nm as an extremely short angle screwdriver: TBASL-x
- Up to 100 Nm, as pistol and inline up to 13 Nm: Light, SO and SOP
- Up to 120 Nm, as pistol and inline up to 14 Nm: ECO, EC and EC²
- 50 to 1250 Nm as pistol or angle, always with reaction arm: HT ECO and HT EC
- Angle screwdrivers from 60 Nm require suitable torque support
3. Machine capability
- ±10 % according to VDI/VDE 2645 Part 2: Light, SO and SOP
- ±7 % according to VDI/VDE 2645 Part 2: ECO, EC, EC², HT ECO and HT EC
- HT EC in addition: torque sensor < 1 % of full scale, angle resolution 0.1 degree
- TBASL-x: not stated in the data sheet
4. Documentation and options
- Result display by LED: Light and TBASL-x
- OLED display, 100 programs and at least 150,000 results with curves in the tool: SO, SOP, ECO, EC, EC² and HT
- OK/NOK evaluation of the shut-off result: SOP, ECO, EC, EC² and HT
- Optional WLAN and barcode scanner: all series except Light and TBASL-x
Options and accessories
Pistol screwdrivers of the Light, SO, SOP, ECO, EC and EC² series are available on request with Lübbering LSP3 interface or with a mount for a torque reaction arm. For these series, a second start button is available as a safety option for angle screwdrivers from model TBAx-30. The HT series work with a multiplier from RAD or Norbar; the reaction arm is included with the Norbar multiplier and available separately for the RAD multiplier.
Testing and calibration in Sarnen
Our calibration laboratory in Sarnen is accredited for force and torque according to ISO/IEC 17025 (SCS 0083). For checking your screwdrivers in operation, you will find suitable measuring equipment in the torque sensor guide.
Frequently asked questions
Shut-off screwdriver or EC screwdriver: what is the difference?
In the Light, SO and TBASL-x series, a mechanical precision clutch shuts off as soon as the set torque is reached. The EC screwdrivers ECO, EC, EC² and HT measure the torque with a sensor, work with programmable steps for torque, current, angle, speed and time and evaluate every tightening as OK or NOK. The SOP series combines both: it shuts off via the clutch, checks the result with a reaction sensor and can also be used as an EC screwdriver.
Why does the EC² series have two sensors?
In addition to the rotating torque and angle sensor, the EC² series has a redundant reaction torque sensor according to VDI/VDE 2862. According to the data sheet, this makes it suitable for joints of classes A, B and C, including handheld systems.
Which series for torques above 120 Nm?
The HT ECO and HT EC series cover 50 to 1250 Nm, as pistol or angle screwdrivers with multiplier. They are always operated with a suitable reaction arm. HT EC has a rotating torque and angle sensor with an angle resolution of 0.1 degree, HT ECO a reaction torque sensor.
Advice and quotation
Tell us the torque, the joint, the preferred design and whether you need to document the results. Our sales team will be happy to advise you: verkauf@disa.ch or +41 41 666 70 50.
