Engineering selection guide

What information is needed for an ultrasonic or piezoelectric product RFQ

Complete application, parameter, drawing, mounting, sample and volume information reduces clarification and improves selection accuracy.

Updated2026-08-07Reviewed againstSunnytec project communication workflowUse boundaryPreliminary selection; production requires engineering confirmation
01

Basic information for every project

Describe the equipment, end use, target market and current project stage. For replacements, provide the original model, photos, labels, drawings and known issues.

  • Target frequency and tolerance
  • Dimensions, mounting space and connection
  • Capacitance, impedance, power, voltage or other key electrical data
  • Medium, load, temperature, duty cycle and environment
  • Sample quantity, validation plan, estimated annual volume and timeline
02

Additional information by product family

Cleaning transducers require tank, medium and part information; welding ceramics require stack and preload data; atomizing elements require liquid and drive information; beauty elements require transducer-head, coupling and device conditions.

03

Specification freeze and version control

After sample validation, record the model, drawing, key parameters, appearance or label requirements and acceptance conditions in the latest mutually approved specification to avoid version confusion.

TECHNICAL FAQ

Common customer questions

Can we inquire before all information is available?+

Yes. Share what is known and unknown, and engineering will identify the next information required.

Can drawings be shared after an NDA?+

Raise confidentiality requirements during the commercial discussion so both parties can confirm the process.

Content note

This page is based on current public Sunnytec product data and engineering communication workflows. If specifications change, the latest mutually approved specification prevails. The page does not guarantee finished-machine performance, safety, regulatory compliance or application results.