Double Head Ultrasonic Plastic Welding Machine
Double head ultrasonic plastic welding machine with two independent heads for large parts or high-volume assembly. Simultaneous or sequential welding.


- Number of Heads: 2
- Welding Mode: Simultaneous or Sequential
- Max Welding Area: Up to 400mm (dual heads combined)
- Control: PLC with touch screen
Double Head Ultrasonic Plastic Welding Machine – Dual Head Efficiency for Large Parts This double head ultrasonic plastic welding machine is designed to weld larger plastic components or multiple points in a single cycle. With two independent ultrasonic heads, it can operate simultaneously or sequentially, significantly reducing welding time.
Key Features:
Two separate ultrasonic welding heads with independent controls Adjustable distance between heads for different part sizes Simultaneous or sequential welding modes Ultrasonic frequency: 20 kHz or 35 kHz per head Welding force adjustable up to 2000N per head PLC control with 7-inch HMI touch screen Pneumatic or servo-driven actuation
Technical Specifications:
Number of Heads: 2 Head spacing: 80mm to 400mm (adjustable) Ultrasonic Power per head: 1000W – 2000W Welding stroke per head: 50mm – 100mm Cycle time: 1 – 3 seconds (depending on material) Air supply: 6 – 8 bar Voltage: 220V / 380V, 50/60Hz
Applications:
Automotive interior parts (dashboard, door panels), medical device assemblies (filters, housings), consumer electronics (large enclosures), and any plastic component requiring two welds at once.
Benefits:
Up to 50% faster than single-head machines Reduced floor space compared to two separate welders Consistent weld quality with independent head calibration Easy tooling changeover for different products
Why Choose Our Double Head Welder?
For parts requiring two welds (e.g., left and right sides, or two separate bosses), a double head machine eliminates the need for two cycles or two machines. This improves throughput, lowers energy consumption, and simplifies automation integration.
Contact us for a custom configuration based on your part geometry and production volume.
What to send for a quote
- Material of the parts, for example PP, PE, ABS or PC, and whether it is filled
- Joint design: energy director, shear joint or step, with a drawing or section
- Weld requirement: strength, leak tightness, or a limit on the visible weld line
- Whether you already have horns or fixtures that the new machine must reuse
- Target cycle time, annual volume and number of shifts per day
Related machines
blower wheel assembly machines, toys gearbox assembly machines and all assembly machines Quotes: [email protected] or +86-18123647785. Machines are built and run off in our 5,000 m2 plant in Chashan, Dongguan.
Send the drawing for this machine. We come back with station layout, cycle time and price.
A quote normally takes three working days once the part information is complete. If something is missing we tell you which drawing is needed instead of guessing a price.
- 012D drawing or STEP file, and the sub-parts
- 02Material and surface finish of each component
- 03Target cycle time, annual volume, shifts per day
- 04The defect you cannot ship — leak, torque, appearance
- 05Bottle neck thread or mating part