This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X220-20SH, 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 SUJ40X220-20SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 220mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X220-20SH, which matches its bore, stroke, force and mounting.
The AirTAC SUJ40X220-20SH is a double-acting double-rod profile cylinder with a 220 mm nominal stroke and a 20 mm external stop screw window, allowing you to trim the extend stroke on-site down to 200 mm without mechanical changes. It features a 40 mm bore, a 1/4" port, and a Viton H high-temperature seal (0 to 150 C).
The direct replacement is the SAUJ40X220-20SH, matching the bore, stroke, adjust window, force, and SC-series FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, replacing this model's legacy CS1-B/DS1-B switches. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ40X220-20SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X220-20SH |
| Bore size | Ø40 mm |
| Stroke | 220 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 SAUJ40X220-20SH 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 SAUJ40X220-20SH 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. |
| ×220 | 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.
Trimming the extend stroke by up to 20 mm on-site allows a clamping fixture to adapt to slight part thickness variations without repositioning the cylinder body.
A diverting mechanism can fine-tune its reach between 200 and 220 mm to accommodate different product sizes on the line without swapping out the actuator.
The Viton H seal permits operation up to 150 C in a heat-sealing station, while the stop screw precisely sets the crushing distance for varied package thicknesses.
To replace the discontinued SUJ40X220-20SH, order the direct replacement SAUJ40X220-20SH, which preserves the 40 mm bore, 220 mm stroke, 20 mm adjust window, 1/4" port, and FA/LB mounting. Select the 20 mm adjust window if your application requires fine-tuning the extend stroke between 200 and 220 mm on-site. Because this model includes the -S magnet and -H Viton seal, specify the equivalent SAUJ properties; note that the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. For this 220 mm stroke, verify side-load limits per the datasheet. The stop screw sets end position only; it is not a load lock, so add an external rod lock for held loads.
Replacement checklist
Yes, the AirTAC SUJ40X220-20SH is discontinued. The direct replacement is the SAUJ40X220-20SH, which matches the 40 mm bore, 220 mm stroke, 20 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches found on this SUJ model.
The 1/4" port and M12x1.25 rod thread are fixed. The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, yielding a usable stroke range of 200-220 mm. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X220-20SH replacement — usually within 7-8 hours.