This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1330S, 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 SU32~50 Standard Cylinder SU40X1330S is a double-acting profile-type standard cylinder with a Ø40mm bore and 1330mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1330S, which matches its bore, stroke, force and mounting.
The AirTAC SU40X1330S is a discontinued double-acting profile cylinder with a 40 mm bore and 1330 mm stroke. Because 1330 mm exceeds the 1200 mm standard limit for this bore, it is a non-standard, made-to-order length. Generating 628 N push force at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 unit of the same size. The direct replacement is the SAU40X1330S, preserving the original 1/4" port, M12x1.25 rod thread, and SC-series mounting.
When upgrading to the SAU40X1330S, the body, bore, stroke, and force remain identical. The key change is sensing: your legacy CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU32~50 Standard Cylinder SU40X1330S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1330S |
| Bore size | Ø40 mm |
| Stroke | 1330 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 SAU40X1330S 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 SAU40X1330S 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. |
| ×1330 | 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.
Pushes packages across a wide sorting lane using the full 1330 mm extension, relying on external guides to support the long rod.
Extracts totes from deep shelving racks where the 628 N push force at 0.5 MPa easily handles standard bin weights up to 32 kg.
Feeds long stock or film strips into a machining station, taking advantage of the compact 40 mm profile body to save space.
To replace this discontinued SU40X1330S, order the SAU40X1330S direct equivalent, matching the 40 mm bore, 1330 mm non-standard stroke, 1/4" port, and SC-series mounting. Because the 1330 mm stroke exceeds the 1200 mm standard maximum, expect a made-to-order lead time. At 1330 mm, the 16 mm rod is highly susceptible to side-load bending; you must use external guide rails to prevent piston drift and seal damage. If you need more force, stepping up to a 50 mm bore increases push force to 982 N at 0.5 MPa; if less force is acceptable, a 32 mm bore drops to 402 N. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for vertical holding. If you want to simplify plumbing, explore the SAUF valve-integrated option.
Replacement checklist
Yes, the AirTAC SU40X1330S is discontinued. The direct replacement is the SAU40X1330S. It matches the original 40 mm bore, 1330 mm non-standard stroke, 628 N output force, 1/4" port, and SC-series mounting accessories exactly.
The SAU40X1330S produces 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. Because your SU model has a magnet (-S), note that the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement uses the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1330S replacement — usually within 7-8 hours.