This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X215, 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 SU50X215 is a double-acting profile-type standard cylinder with a Ø50mm bore and 215mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X215, which matches its bore, stroke, force and mounting.
The AirTAC SU50X215 is a discontinued double-acting profile-type cylinder with a 50mm bore and 215mm stroke. Because 215mm is a non-standard stroke length, it was supplied as a special build. This legacy pneumatic actuator delivers 982N push force at 0.5MPa via a 1/4-inch port. AirTAC replaced it with the SAU50X215 direct replacement, retaining the exact same extruded aluminium body dimensions, M16x1.5 rod thread, output force, and SC-series mounting accessories.
The SAU50X215 upgrade introduces current CMSG/DMSG/EMSG sensors (the SU line used legacy CS1-B/DS1-B switches) and adds the SAUF built-in 4M solenoid valve option the original lacked. Because this specific SKU has no magnet, it cannot accept any sensor. Note that the 21mm adjustable cushions only decelerate the load; they do not hold it on air loss.
| Model | Airtac SU32~50 Standard Cylinder SU50X215 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X215 |
| Bore size | Ø50 mm |
| Stroke | 215 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X215 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X215 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). |
|---|---|
| 50 | Bore size in mm. |
| ×215 | 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 medium-weight cartons off a sorting line using 589N of safe working force, fitting neatly within existing SC-series mounting brackets.
Acts as a 215mm travel stop for pallets up to 50kg, though an external rod lock is required if the load must be held during air loss.
Drives a 50mm bore clamping arm at 30-800 mm/s to secure aluminium extrusions for machining, benefiting from the 21mm adjustable end cushions.
To replace the discontinued SU50X215, order the SAU50X215. Confirm your 1/4-inch port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC) carry over directly. Since this non-magnet SKU lacks a piston magnet, it cannot support sensing; if you need position detection, upgrade to an SAU50X215-S and use modern CMSG/DMSG/EMSG switches. If you need less force, a 40mm bore provides 628N push; for more power, a 63mm bore yields 1559N. Because the 215mm stroke exceeds standard lengths, ensure adequate guiding to prevent rod-bending side loads. The cylinder will not hold a load without live air—add an external rod lock or pilot-operated check valve for fail-safe holding. The SAUF variant integrates a valve directly onto the body if you want to simplify plumbing.
Replacement checklist
Yes, the SU50X215 is discontinued. The direct replacement is the AirTAC SAU50X215. It matches the 50mm bore, 215mm non-standard stroke, 982N force, 1/4-inch port, and SC-series mounting. You simply order the SAU50X215 equivalent.
At 0.5MPa it provides 982N push and 825N pull; 1374N push at 0.7MPa; 1767N at 0.9MPa; and a theoretical max of 200kgf at 1.0MPa. Because this specific SKU lacks a magnet, it cannot accept sensors. If sensing is needed, the SAU replacement with an -S suffix uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X215 replacement — usually within 7-8 hours.