This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X160-75, 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 SUJ40X160-75 is a double-acting profile-type standard cylinder with a Ø40mm bore and 160mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X160-75, which matches its bore, stroke, force and mounting.
The AirTAC SUJ40X160-75 is a double-acting, double-rod profile cylinder with a 160 mm maximum stroke and a 75 mm external stop-screw window, allowing you to trim the extend stroke down to 85 mm on-site. It features a 40 mm bore, a 16 mm rod, and a 1/4" port. Because this SUJ model is discontinued, the direct replacement is the SAUJ40X160-75, which matches the bore, stroke, force, and mounting.
The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ40X160-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X160-75 |
| Bore size | Ø40 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X160-75 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X160-75 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). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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.
Parts feeding operations needing field stroke tuning to alter the push distance between 85 mm and 160 mm without swapping the entire cylinder body.
Package diverters where the external stop screw sets the extend endpoint on-site to accommodate changing box sizes on the fly.
Ejection systems that require precise extend stroke trimming to push varying product lengths safely out of a machining center.
To replace the discontinued SUJ40X160-75, order the direct replacement SAUJ40X160-75, keeping the 40 mm bore, 160 mm stroke, 75 mm adjust window, and FA/LB mounting. Choose the 75 mm adjust window if you need to trim the extend stroke on-site between 85 mm and 160 mm. For sensing, the SAUJ requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B. This non-magnet SKU cannot take a switch. For strokes of 300 mm or longer, verify your side-load limits. The stop screw is an end-position setter, not a lock; use an external rod lock for held loads.
Replacement checklist
Yes, the SUJ40X160-75 is discontinued. The direct replacement is the SAUJ40X160-75, which matches the 40 mm bore, 160 mm stroke, 75 mm adjust window, and 1/4" port. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 75 mm adjust window lets you shorten the 160 mm extend stroke down to 85 mm. The stop screw sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X160-75 replacement — usually within 7-8 hours.