Our Location

TEL:+860769-85322255, 85310478
Address :
No.13,14,15,Building C,
Xinhe Industrial zone, No.162
Zhen'an East Road,
Xiaobian Community
Chang'An Town Dongguan
City,Guangdong province.
Current location: Home » Product Center » Bumper Case
Show us your application & Production need, We’ll offer you a best solution aiming on ;


High production rate

Highly precision or flexible

Meet your schedule

Advance samples Run

Pre-production study

Human Engineering

International standards


Practice makes Perfect ? Yes,
Our 20 years successful Experience will give you a perfect solution !

Bumper Case 1:

The welding of Bumper elements mostly done with ultrasonic in the form of staking, spot welding.  In some case heat sealing or Hot air Sealing is also applicable. Another special application is Ultrasonic cutting to make a clean and sharp openings on P.P. Bumpers. In case of burrs (residues of injection runner) appeared, It is also required to cut and trim with ultrasonic ( Knife ) accordingly.
In case of reinforcement required ( at the back side of Bumper), A hot plate welding system or vibration welding system shall be applied.



This Bumper welding machine is designed to weld a Holding bracket onto the Bumper at the back side with ultrasonic. The Bumper material is PP. Length of Bumper is 1.6 meter.
Cycle time : 50 seconds



There are many good machines we did in the past years.
To view it, please contact CHANGO !





ADD: No.13,14,15,Building C, Xinhe Industrial zone, No.162 Zhen'an East Road,
Xiaobian Community Chang'An Town Dongguan City,Guangdong province. P.R CHINA

Mobile:139 0260 3448








CHANGO ultrasonic Co.    Ltd   Ultrasonic tooling   Auto-plastic welder   Ultrasonic Horn   Auto-plastic welding machine   Vibration friction welder
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