Manufacturer of soldering tips · Dongguan, China

XANJOPrecision Technology

Products · Selective wave

A nozzle shapes a column of solder. Treat it as a fluid part.

In selective wave soldering the nozzle does not touch the joint; it shapes the solder column that does. The orifice edge, the bore finish and the wall thickness decide whether that column is stable, so these pages are about flow rather than about tip geometry.

Nozzle types
3point / slot / custom
Geometries
38in this family
Orifice
lappededge broken
Minimum order
20 pcsper profile
Selective wave soldering nozzles in conical and slotted shapes
Selective solder nozzles family · product sheet

Start here

Flow is set by the edge, not by the diameter alone.

Definition: A selective wave solder nozzle is a machined tube or cup that directs a local wave of molten solder onto a through-hole or a connector row. The inner bore carries the solder; the orifice releases it; the edge around the orifice decides how the column leaves the tool.

Two nozzles with the same orifice diameter can produce different columns. A sharp, burred edge makes the solder cling and wander; a correctly broken edge releases it in a stable column. That is why we lap the orifice after machining and inspect the edge rather than quoting the diameter and stopping there.

The bore matters too. A rough bore drags on the solder and slows the fill; a polished bore lets the wave rise and fall at the rate the machine expects. Both are controlled on the same part, which is why a nozzle is a drawing item rather than a catalogue SKU with a single dimension.

Selection

From the joint to a code.

Start with what the joint needs, not with the part number you last bought. The codes below are examples within the series, not the only options.

Joint or taskFaceExample codeWhy
Single through-hole pinPointP-1.0 / P-1.5A narrow, stable column
Connector rowSlotS-4 / S-6A curtain across several pins
Fine pitchPoint, smallP-0.8Less solder per pin
Mixed rowCustomto drawingOrifice follows the pad layout
Deep accessPoint, longP-1.5LReach past a tall part
High thermal massSlot, wideS-8More solder volume per pulse

Face width and reach still have to be checked against the board or the holder. Send the dimensions and we will narrow the table to two or three codes.

Compatibility

Series, machines and what to check.

SeriesFitsNote
Selective wave machinethread or collar mountConfirm body length
Point nozzle holdersingle orificeConfirm orifice diameter
Slot nozzle holderslotted orificeConfirm slot length

Model names describe the machine a part fits. XANJO replacement parts are independent parts, not original equipment manufacturer parts.

Questions we are asked

Fitting, drawings and ordering.

How do I measure a nozzle for replacement?

Measure the orifice diameter or slot, the bore, the overall length and the mount thread. A photograph of the old nozzle beside a rule is useful, but the drawing is what we machine to.

Why does the orifice edge matter?

Because the solder leaves the nozzle at that edge. A burr or a sharp corner changes the direction of the column and can cause bridging on the adjacent pin. We lap the edge and break it to a controlled radius.

Can you make a nozzle for a pad layout that has no standard?

Yes. Send the pad layout and the required column shape; the orifice is machined to the drawing. Custom nozzles are quoted individually because the bore and the edge are both part of the design.

Are these original equipment parts?

No. XANJO makes independent replacement nozzles. Machine names describe the mount and are used only to explain compatibility.

Send the machine model. We’ll send the drawing.

A model number, a holder photograph or an old part is enough. You get the series, the geometry shortlist and the published dimensions within one working day.