Manufacture Portable 28kHz Ultrasonic Plastic Welder Spot Welding Machine

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Manufacture Portable 28kHz Ultrasonic Plastic Welder Spot Welding Machine

Customization:	Available
Application:	Household Appliances, Garden Supplies, Decoration, Commodity, Auto Part, Electronic, Stationery, Toy
Cooling Way:	Air Cooling

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Product Description

Basic Specifications

Model NO.

RPS-W28

Control

Semi-Automatic

Electric Current

Style

Handheld

Power

800W Electric

Frequency

28kHz

Generator

Digital Generator

Horn

Customized

Power Supply

220V 50/60Hz

Origin

China

HS Code

8515900090

Capacity

200PCS/Month

Packaging & Delivery

Package Size

25.00cm * 12.00cm * 5.00cm

Gross Weight

6.000kg

Transport Package

Carton

Product Description

Item	Parameter	Advantage	Application
28Khz Ultrasonic Hand Welder (Straight/Gun)	800W, Digital generator, Customized Horn, Aluminum/Steel/Titanium alloy	1. Light generator (4kg) and welder (0.8-1kg). 2. Firm alloy metal housing, long life. 3. Digital generator with auto-frequency tracking.	PP, PVC, Fabric, PE, ABS, PS, Nylon, PU, PET. Max thickness 8mm.
35Khz Ultrasonic Hand Welder (Straight/Gun)	500W, Digital generator, Customized Horn, Aluminum/Steel/Titanium alloy		Thermoplastic materials. Max thickness 5mm.

Principle of Ultrasonic Plastic Welding:

When ultrasonic waves act on the thermoplastic contact surface, high-frequency vibrations (tens of thousands of times per second) are generated. This energy is transmitted to the weld zone, creating local high temperatures due to acoustic resistance. As plastics have poor thermal conductivity, heat gathers rapidly, melting the contact faces. Under pressure, they integrate into one solid molecular chain. The quality depends on the transducer amplitude, applied pressure, and welding time.

The generator produces high-voltage, high-frequency signals (20KHZ or 15KHZ), which are converted into mechanical vibration. Friction causes the temperature to reach the melting point, achieving a perfect weld once the vibration stops and the workpiece cools under pressure. This high-tech process requires no solvents or adhesives, increasing productivity and reducing costs.

Frequently Asked Questions

What materials can be welded with this portable ultrasonic welder?

It is suitable for most thermoplastic materials including PP, PVC, PE, ABS, PS, Nylon, PU, PET, and various woven fabrics.

What is the maximum thickness the machine can handle?

The 28kHz model can weld materials up to 8mm in thickness, while the 35kHz model is suitable for up to 5mm.

What are the advantages of using a digital generator?

The digital generator features automatic frequency tracking, making it very easy to operate. It also allows for adjustable output and welding time, suitable for both manual and machine-integrated operations.

Do I need to add glue or solvents for the welding process?

No, ultrasonic welding is a high-tech process that joins materials through friction and heat. No adhesives, solvents, or auxiliary products are required.

Is the machine heavy to operate by hand?

Not at all. The hand welder itself weighs only 0.8kg to 1kg, and the generator weighs approximately 4kg, making it highly portable and suitable for long-duration manual tasks.

What is the difference between the Straight type and Gun type?

The Straight type is versatile and suitable for both handheld use and machine integration. The Gun type is specifically designed with an ergonomic grip for comfortable manual operation.