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Torque wrench without scale without plug-in head, maximum torque: 320N·m
Article no.: 657450 320
Article code:
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Beschreibung der Legende siehe Beschreibungstext.
Product details
Technical Data
| Lever length including factory calibration reference dimension | 602 mm | |
| Lever length without plug-in head | 563.5 mm | |
| Adjusted reference dimension on the torque wrench | 38.5 mm | |
| Adjustable trigger value | non-adjustable | |
| Unit of measure for torque | Nm | |
| Min. torque, Nm | 60 | |
| Max. torque, Nm | 320 | |
| Setting the trigger value | without setting scale (requires torque analyser) | |
| Socket for plug-in head | 14×18 mm | |
| Size, for plug-in heads (rectangular socket) | 1/2 in | |
| Data can be recorded | no | |
| Trigger principle | mechanical short travel release | |
| Trigger signal | acoustic; haptic | |
| Feedback | triggering | |
| Content | single part | |
| Can be calibrated | yes | |
| Type of product | torque wrenches | |
| Direction of tightening | right-left | |
| Shape of connection | for plug-in heads (rectangular socket) | |
| Measurement technology | mechanical | |
| Measuring functions | torque | |
| DIsplay | nothing displayed | |
| Torque range (min.) | 60 Nm | |
| Torque range (max.) | 320 Nm | |
| Torque accuracy clockwise | 2 % | |
| Standard | DIN EN ISO 6789 | |
| Overall length | 636 mm | |
| Total weight | 1,100 g |
Identification & Classification
| Article number | 657450 320 | |
| EAN / GTIN | 4045197995964 | |
| Manufacturer number | 657450 320 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
One-armed torque wrench without a setting scale. Set the desired torque value using setting tool No. 657452 1 in conjunction with a suitable tester.
Anti-clockwise tightening by reversing the plug-in head. Without plug-in head (base model);for suitable plug-in heads see No. 657582 − 657950.
Anti-clockwise tightening by reversing the plug-in head. Without plug-in head (base model);for suitable plug-in heads see No. 657582 − 657950.
Function:
On reaching the set torque value the wrench triggers giving a “signal”(audible and perceptible) and is then immediately ready for use again.
Application:
For controlled screw tightening etc. to specified torques in batch productions.
Standard:
Tested to DIN EN ISO 6789.
Accuracy:
±2% of the set value.
Cutting data:
Legend for drawing and formula:
l1 = Lever length without plug-in head
l2 = Adjusted reference dimension on the torque wrench
l3 = Lever length including factory calibration reference dimension
l4 = Reference dimension of the plug-in head
L = Total length of the tool
T1 = Torque to be set
T2 = Specified torque
l1 = Lever length without plug-in head
l2 = Adjusted reference dimension on the torque wrench
l3 = Lever length including factory calibration reference dimension
l4 = Reference dimension of the plug-in head
L = Total length of the tool
T1 = Torque to be set
T2 = Specified torque
Note:
Warning:
Intended use
Reasonably foreseeable misuse
- For controlled tightening of nuts and bolts.
- Article no. 657450: Suitable plug-in head: Size 10 to 50: with plug-in shaft 9×12 mm. Size 100 to 320: with plug-in shaft 14×18 mm.
- Suitable for both industrial and private use.
- Use only when it is technically in good condition and safe to operate.
- Have the wrench regularly calibrated and adjusted.
Reasonably foreseeable misuse
- Avoid vibration, reverse movement, shaking, impacts.
- Do not use the wrench as an impact tool, do not throw it.
- Do not use it for undoing screw fastenings.
- Not for use where there is exposure to intense heat, direct sunlight, naked flames or liquids.
- Do not make any unauthorised changes or modifications to it.