Selective Soldering Nozzle Drawing Guide
Understanding how to read a selective soldering nozzle drawing is essential for ordering the correct replacement. This guide explains the key dimensions: ID/AD, height, base type, and nozzle type.
Key Takeaways
- ID/AD defines the nozzle tip inner and outer diameter in millimeters
- Height (H) is measured from base bottom to nozzle tip top
- Base type (B14.1/B22 or B16.1/B36) determines solder pot compatibility
- Nozzle type (Standard S, Cross, Special) affects solder wave shape
- Always verify all four dimensions when ordering a replacement nozzle
1. ID / AD (Inner/Outer Diameter)
The ID/AD notation (e.g., 6.0/10.0) specifies the nozzle tip dimensions:
| Dimension | Meaning | Example |
|---|---|---|
| ID (Inner Diameter) | Inside opening of nozzle tip | 6.0 mm |
| AD (Outer Diameter) | Outside diameter of nozzle tip | 10.0 mm |
Common ID/AD sizes: 1.5/2.5, 3.0/5.0, 4.0/6.0, 6.0/10.0, 8.0/12.0, 10.0/14.0, 12.0/16.0, 14.0/18.0, 16.0/20.0 mm
2. Nozzle Height (H)
Height is measured from the bottom of the base mounting surface to the top of the nozzle tip. Common heights include:
3. Base / Solder Pot Type
| Legacy Designation | Current Designation | Machine Compatibility |
|---|---|---|
| B14.1 | B22 | VERSAFLOW 4/5, ECOSELECT 2, SMARTFLOW |
| B16.1 | B36 | Alternative solder pot configuration |
Important: B14.1 and B22 refer to the same base type. B16.1 and B36 refer to the same alternative base type. Always check your machine's solder pot to confirm which base type you need.
4. Nozzle Type
Standard (S)
Round tip, general-purpose selective soldering nozzle for most through-hole applications.
Cross
Cross-shaped internal structure for flatter solder wave, better for larger joints.
Special
Custom shapes for specific applications. Available by drawing or sample.
Need Help Reading Your Drawing?
Send us your drawing or old nozzle photo and we'll help you identify the correct replacement.
FAQ
What is ID/AD on a selective soldering nozzle?
ID (Inner Diameter) is the inside diameter of the nozzle tip opening. AD (AußenDurchmesser, Outer Diameter) is the outside diameter of the nozzle tip. Together they define the solder flow rate and solder joint size.
How do I read the height dimension?
Height is measured from the bottom of the base (where it mounts to the solder pot) to the top of the nozzle tip. Common heights are H47, H57, H75, H80, H90mm.
What is the difference between B14.1 and B22?
B14.1 is the older designation and B22 is the newer designation for the same solder pot base type used in Ersa selective soldering machines. They are interchangeable.
What is a Cross nozzle?
A Cross nozzle has a cross-shaped internal structure that creates a flatter solder wave pattern, suitable for larger solder joints and through-hole components.
Can I order a nozzle with custom dimensions?
Yes. We can manufacture custom selective soldering nozzles based on your drawings, old nozzle samples, or specific ID/AD/height/base requirements. MOQ is 1 piece.