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Variable Frequency Vibrator

High-Frequency Vibrators:
1. High vibration frequency, strong excitation force, low amplitude, and wide radiation range. This increases concrete fluidity and plasticity, improves component density, accelerates forming, and significantly improves quality.
2. Operating on three-phase industrial frequency power, this high-frequency vibrator can achieve 9,000-11,000 vibrations per minute, with an excitation force of 11kN-16kN.
3. Attached vibrators reduce formwork wear. Their high frequency and low amplitude extend the life of the formwork.
4. Attached vibrators feature a quick-install and remove mechanism, requiring only a few screws to secure them to the formwork. This reduces installation time by 75% compared to conventional external vibrators. This also reduces labor costs by 75%.
5. High-Frequency Vibrators have a service life over four times that of conventional vibrators. Due to their high vibration rate, each vibration cycle only takes 10-15 seconds, significantly extending the vibrator's service life, reducing maintenance costs, and lowering construction costs.
High-Frequency Vibrator Applications:
High-frequency vibrators are primarily used in the prefabrication of large concrete components, such as highway, railway, and bridge girders, and culvert concrete components, particularly T-shaped simply supported beams and I-beams.
Use, Maintenance, and Repair of High-Frequency Vibrators
1. Before use, the high-frequency vibrator should be inspected for insulation. Use a 500-volt megohmmeter to check the motor windings and ground insulation. The value must be no less than 2 megohms. Otherwise, the vibrator should be dried in a constant temperature oven at 120°C.
2. Before use, inspect the high-frequency vibrator for loose screws. Only test the vibrator after confirming that all screws are correct. The high-frequency vibrator must be placed on a soft surface during testing, testing on concrete floors is not permitted.
3. Attached vibrators must only be installed horizontally, never at an angle to the horizontal on the formwork.
4. After connecting the attached vibration motor leads to the cable, they should be secured to the motor handle to prevent the high-frequency vibrator from pushing or pulling the cable during vibration, breaking the motor leads and causing phase loss and motor burnout.

5. If any loose bolts are found during operation, they should be tightened immediately to prevent water and moisture from entering the motor.
6. While using the high-frequency vibrator, regularly check the power supply circuit and the sockets and plugs to ensure proper contact.
7. After use, the exterior of the attached high-frequency vibrator must be carefully cleaned to ensure proper heat dissipation and stored in a dry and ventilated area.
Operating Procedures for Attached and Flat-Panel Vibrators
1. The bearings of attached and flat-plate vibrators should not be subjected to axial forces. During operation, the motor bearings should be kept horizontal.
2. When using multiple attached vibrators simultaneously on a template, the frequencies of each vibrator should be consistent, and vibrators on opposite sides should be staggered.
3. Before operation, the attached vibrator should be inspected and tested. Vibration tests must not be conducted on dry, hard soil or hard objects. Vibrators installed on mixing plant silos should be fitted with rubber pads.
4. During installation, the mounting bolt holes on the vibrator baseplate must be correctly positioned to prevent the base bolts from twisting and damaging the housing. The base bolts must be tightened, and the tightening of each bolt must be consistent.
5. During use, the lead-out cables must not be overtightened or short-cracked. During operation, the ground leakage protector and grounding or neutral connection devices of electrical equipment must be observed at all times and confirmed to be qualified.
6. When an attached vibrator is installed on the concrete formwork, each vibration cycle should not exceed one minute. Vibration should be stopped when the concrete is flowing or level within the formwork. Vibration should not be resumed during the initial setting of the concrete.
7. The formwork for the component on which the vibrator is installed must be strong and secure, and its area should be equivalent to the rated vibration area of the vibrator.
8. When the flat plate vibrator is operating, the flat plate should be kept in contact with the concrete so that the vibration waves can effectively compact the concrete. After the slurry appears on the surface and no longer sinks, it can be moved forward slowly. The moving speed should be able to ensure that the concrete is compacted and slurry appears. The working vibrator must not be placed on concrete that has already solidified or is just beginning to solidify.
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