Product No: LS-B77
The LS-B77 Vacuum Cleaner Tube Torsion Tester is designed according to the requirements of IEC 60335-2-2 Clause 21.104 (GB/T 4706.7 Clause 21.104) to test the torsion resistance of vacuum cleaner hoses. During the test, one end of the hose is fixed to the rotating clamp of the equipment, while the other end is suspended. Each cycle consists of five forward rotations and five reverse rotations at a speed of 10 revolutions per minute (r/min), for a total of 20 cycles. After the test, the sample undergoes an electrical strength test to ensure its durability and safety.
Specifications:
| Items Name | Specifications |
| Input Power | 220V,50Hz,200W |
| Human-computer Interaction | 7-inch color touchscreen |
| PLC | U-Control FX Platform Series PLC |
| Drive Motor | Leisai stepper motor |
| Rotational Speed | The 0-12 rpm setting can be preset on the screen; the standard requirement is 10 rpm. |
| Rotation Mode | The screen can preset the number of rotations in one direction (5 times), then in the opposite direction (5 times) |
| Rotation Amplitude | The screen allows input of any angle to achieve the specified range |
| Test Cycle | The screen can be preset from 0 to 32767 times; once the number of times is reached, an audible and visual alarm will sound and the machine will stop |
| Clamping Mode | The top part is horizontally mounted, the rest is freely suspended, and the end clamps hold and rotate periodically |
| Chassis | Aluminum profile + painted steel plate composite structure |

IEC 60335-2-2 Clause 21.104
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