Q1: How to ship your products to us?
A: For small orders, we recommend shipping via FedEx, DHL, UPS or TNT. For large orders, air freight or sea freight can greatly reduce your shipping cost. The freight charge is calculated based on the total gross weight of your order.

Q2: How about the quality?
A: To guarantee reliable product quality, please provide a full list of your quality requirements and market standards before we make samples for you. The sample specification will be confirmed and agreed by both parties.
Some of our products have CE, FCC and RoHS certifications, but not all items. Please inform us if you need specific certificates for your target market. We focus on delivering reliable quality instead of competing by cutting corners to lower prices.

Q3: How to place an order?
A: You may send your Purchase Order via email. Alternatively, you can request us to issue a Proforma Invoice for your order.
We require the following order information:
A. Shipping details: company name, street address, phone & destination airport / seaport, shipping method (courier, air freight or sea container)
B. Product details: model number, quantity and unit price
C. Required lead time
D. Freight payment term (freight collect or freight prepaid)
E. Contact information of your freight forwarder if they are located in China or Hong Kong

Q4: What’s your usual payment term for orders?
A: We accept bank transfer (T/T), Western Union and PayPal.

Q5: How about the delivery time?
A: Trial / small orders: normally 7–14 working days.
Large / container orders: normally 25–30 working days.
We will confirm the exact lead time before order confirmation. In case of unexpected production delays, we will notify you in advance and explain the reasons.

Q6: What’s the warranty of your products and how about the after-sale service?
A: Product warranty ranges from 6 months to 2 years, depending on item model. We will state the exact warranty period at the time of order.
Warranty starts from the date of shipment or Bill of Lading date. Please contact us via email, phone or fax promptly for technical support if you encounter any problems after sales.

Q7: Do you accept OEM and print our logo or company name on the packaging boxes?
A: Yes, OEM & ODM orders are welcome. However, an MOQ (Minimum Order Quantity) may apply for customized OEM orders.

Q8: May I only buy a few pieces or several samples for testing?
A: Sure, sample orders are welcome! Generally there is no strict MOQ for test samples, you can choose the quantity according to your own testing plan.

Q9: How much will the courier freight be for samples?
A: Courier cost depends on sample quantity, total weight, carton dimension and your destination country. You may check the rate with your local DHL, FedEx, UPS or TNT office.
When you place a sample order, we can also quote CIF price for your reference.

Q10: How can I get your price list and catalogues?
A: Please send your contact information (your name, email address, company name and website) to us by email or fax.

Q11: Is your ultrasonic generator compatible with third‑party transducers?
A: It can work with matching transducers, but frequency and impedance must be well‑matched. Mismatched parameters may cause unstable operation or damage the generator. Better to supply our matched transducers together for best performance.

Q12: Does the generator support sweep frequency function?
A: Most of our models are built‑in with sweep function. Sweep frequency helps improve cleaning uniformity and reduce the heating of transducers. You can confirm this function when selecting the model.

Q13: What input voltage options are available?
A: Standard 220V AC. Custom voltage such as 110V can also be arranged, please advise your local supply voltage before sampling.