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.
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 !

One of Our outstanding product is “ Door Panel Welder” with flexible design. We created new functions and applied it on all our machines started 8 years ago. These are :
Robot type multi-position 3D travel control spot welder ( can be built to dual heads to 4 heads in case needed / operated at same time)
Individual central cooling system in staking and spot welding.
Rapid automatic exchange welding heads ( acoustic unit).
Rapid change nesting / fixtures.
Lift up part holding device
(Option) Welding head with 2 D rotation specially
built for incline welding surface. Similar to 5 direction robot
Other basic functions are : Light barriers , emergency stop,
Nest identification in relate with pro-set welding programs,
35KHz 1200 Watt ultrasonic generator

All welding system are built to international standards
( to meet with ISO 9001 & CE ).

Such system obviously reduce the amount of welding unit and necessary hardware.
As a result, huge cost reduction will be anticipated.


There are many model we made for different Customers. Some likes high production volume and some prefer low volume with high mobility system.

This is another dual station Panel Welder equipped with two Robot type 3D welding heads.
Automatic horn exchange device available.

Cycle time : 2 minutes / pair ( one left and one right door panel)


Below is a complex machine indicating our design capability.

It contains one robot system and one Multi-head welding stack system.

The robot system involve 2 units of 3D control multi spot welding unit.

Fix welding stack contain 10 sets of acoustic unit with different pattern horns.

Two sets of compression fixture.

A two meter sliding platform.

Welding spots : 50 spots total

Welding process : 1st stage Robot type
2nd stage : Multi-head system

Welding cycle : 110 second per piece.



This is a simple Robot type Door Panel Welder having two 3D travel welding heads.
One of the key feature is a number of hidden light curtains were installed around Work (open) area giving a free room for operator.
A lift up press is built. The press will come down and press tight on Panel during welding and lift it up afterwards.

Operator will only load in new part and, at the same time, remove the welded part.


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

Please visit our CLASSIC Examples CLICK  to HOME






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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