This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X140-30N, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X140-30N is a double-acting profile-type standard cylinder with a Ø32mm bore and 140mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X140-30N, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X140-30N is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 110-140 mm extend range from the 140 mm nominal maximum. The stop screw sets the end position but is not a load lock; an external rod lock is required for held loads.
Because this SKU lacks a magnet, it cannot accept a magnetic switch. The direct replacement is the SAUJ32X140-30N, which matches the 32 mm bore, stroke, force, port, and SC-series FA/LB mounting, but upgrades sensing to current CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X140-30N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X140-30N |
| Bore size | Ø32 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ32X140-30N carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X140-30N produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×140 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Feeding parts of different lengths on a line by dialing in the extend stop between 110 mm and 140 mm without swapping the cylinder.
Tuning a sorting gate's reach on-site to handle varying package widths precisely at the conveyor edge.
Setting the exact bottoming position for a carton flap or forming platen, allowing 30 mm of product-height flexibility.
To replace the discontinued SUJ32X140-30N, order the direct replacement SAUJ32X140-30N, which preserves the 32 mm bore, 140 mm stroke, 30 mm adjust window, and 1/8" port. Choose the adjust window based on your maximum needed extend length: here, the 30 mm window allows field tuning between 110 mm and 140 mm. The SC-series FA and LB mountings carry over directly. Because this specific SKU has no magnet (-N seal, no -S), it cannot support sensing; the SAUJ upgrade enables modern CMSG/DMSG/EMSG sensors if needed. For this 140 mm stroke, side-load is minimal, but for any stroke over 300 mm, carefully guide the rod to prevent binding. Remember the adjust stop is not a brake; use a pilot-operated check valve for load holding.
Replacement checklist
Yes, the SUJ32X140-30N is discontinued. The direct replacement is the SAUJ32X140-30N. It matches the 32 mm bore, 140 mm stroke, 30 mm adjust window, 1/8" port, and SC-series FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw offers a 30 mm adjust window, allowing the extend stroke to be shortened on-site from the 140 mm maximum down to 110 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X140-30N replacement — usually within 7-8 hours.