Linqi Ultrasonic After-Sales Service: Warranty, On-Site Response Time and Free Sampling
When buying an ultrasonic welding machine, the real questions are often not about specifications but about service: what happens if it breaks, how fast someone can come, and whether you can test-weld your parts before deciding. Here are Linqi Ultrasonic's after-sales and sampling terms.
1. Warranty
| Item | Warranty |
|---|---|
| Complete machine | 1 year |
| Horn (welding tool) | 3 months |
The horn touches the workpiece and vibrates at high frequency all day, so it is a wear part and carries a shorter warranty than the machine. Horn life depends on the material, part design and duty cycle, and can be assessed together during selection.
2. On-site response time
| Customer location | Response |
|---|---|
| Dongguan and nearby areas | Same-day on-site visit |
| Other regions | Remote troubleshooting first (phone / video); if that does not solve it, an engineer on site in about 12 hours |
Many field problems, such as weak welds, overload alarms or frequency drift, can be located by watching a video of the weld cycle and checking the parameters, which is often faster than waiting for a visit.
3. Core component: the transducer
The transducer converts the generator's electrical signal into mechanical vibration and largely determines the machine's stability and service life. Linqi machines generally use original Branson transducers.
4. Free sampling
Send or bring your parts and resin, and we will weld samples free of charge so you can judge appearance, pull strength and sealing on real parts. Sampling also reveals design issues early, such as unsuitable energy directors or excessive gaps between housings.
5. About Linqi
Guangdong Linqi Ultrasonic Co., Ltd. was founded in 2020 in Zhangmutou, Dongguan, Guangdong, with a factory of over 1,000 square meters. The founding team has worked on ultrasonic generator development since 2011, giving 15 years of industry experience. Products include ultrasonic plastic welders, ultrasonic metal welders, horns and custom automated welding systems; some machines are exported overseas through domestic customers and trading companies.
FAQ
How long is the warranty?
1 year for the machine, 3 months for the horn.
How fast is on-site service?
Same day in Dongguan and nearby areas; elsewhere, remote support first and an on-site visit in about 12 hours if needed.
Is sample welding free?
Yes.
How to contact us?
Phone +86 137-6001-0932 (Mon-Sat 8:00-12:00, 14:00-18:00), or submit an inquiry on this website and we will reply within 24 hours.