N510056974AA is the Panasonic order number for the solenoid valve fitted to the W2 3-head assembly on NPM placement machines. It is the part maintenance teams reach for when one head stops switching air cleanly and the line cannot wait for a rebuild. The valve is a small, head-mounted unit: it goes back into the same position as the original and reconnects to the existing air line and plug, so the change is usually measured in minutes rather than hours. This is a direct replacement for one specific head position rather than a universal valve, which is why we confirm your machine and head details before anything is picked. As a solenoid valve supplier for SMT lines, that confirmation is the part of the order we take most seriously.
| Property | Detail |
|---|---|
| Brand | Panasonic |
| Machine platform | Panasonic NPM |
| Head position | W2 3-head assembly |
| Part type | Pneumatic solenoid valve |
| Valve code | VQZ115R-5MOZ1-CP-X550 |
| Panasonic order number | N510056974AA |
| Product category | SMT spare parts - valves |
| Working medium | Compressed air |
| Supplied as | Single replacement valve |
| Fitting position | Same seat as the original head valve |
| Common names | Head valve, air valve, pneumatic valve |
| Order reference | Full valve code plus machine and head position |
| Availability and lead time | Confirmed with your quotation |
These are small precision air components, and most early failures come back to handling rather than to the valve itself. Keep a new valve in its packaging until you are ready to fit it, and leave the port caps in place so dust and swarf cannot settle inside. When fitting, start the fittings by hand and tighten only until they seat - a small air solenoid valve does not need force, and an over-tightened fitting can crack a port. Store spares somewhere dry rather than loose on the machine frame, away from coolant mist and lubricant. Keep the old valve until the replacement has run a full shift, so you have a known unit to compare against if a fault returns.
ZJ-SMT supplies Panasonic SMT and PCB assembly equipment and spare parts to manufacturers worldwide. Our range covers pick-and-place machines, axial and radial insertion equipment, solder paste inspection systems, and feeder spare parts, with both new and used options available. We support bulk orders, and machine condition and availability are confirmed with you before ordering. Whether you are expanding a line, replacing a worn feeder part, or sourcing equipment for a new project, send us your model numbers and our team will come back with a suitable solution and quotation.
It is specified for the W2 3-head assembly on the Panasonic NPM platform. Other heads on the same machine use different valves, so a part that fits one position will not necessarily fit another. If you are unsure which head you have, send a photo of the head with the cover off and we will point you to the right part.
Photograph the valve from two or three angles and note the machine model and which head it came from. The body shape, connector and port layout usually narrow it down to one variant. If you have the machine manual, the head section lists the order number as well, and that is the quickest confirmation of all.
While the head is open it is worth looking at the air tubing for kinks or hardening, checking the nozzle for damage, and wiping the mounting face so the new valve seats flat. These are the small things that make a freshly fitted valve look faulty, and they take only a few minutes to check.
There is no fixed interval. Most lines replace on condition: when a head stops switching cleanly, or when the same fault follows the head after a nozzle change, the valve is the next thing to check. Air quality and cycle count vary too much between lines for a calendar interval to mean much.
Run the head through a normal cycle and compare all three positions: pickup and release should look the same as the neighbouring heads. Check the air connections for leaks and make sure the plug is fully seated before you close the cover. If the head still behaves differently, check the nozzle and tubing before assuming the valve is at fault.
In practice these units are replaced as a whole rather than rebuilt on the line. Solenoid valve manufacturers supply them as complete valves, and field repair of an intermittent unit usually costs more downtime than a straight swap. If the fault only appears occasionally, note which head and when before you change anything.
