This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X220STC, 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 SU32X220STC is a double-acting profile-type standard cylinder with a Ø32mm bore and 220mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X220STC, which matches its bore, stroke, force and mounting.
The AirTAC SU32X220STC is a discontinued double-acting profile-type cylinder with a 32 mm bore and 220 mm stroke. It delivers 402 N push force at 0.5 MPa via a 1/8" port. AirTAC replaced this unit with the SAU32X220STC, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting interface.
When upgrading, note that the SAU32X220STC uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore.
| Model | Airtac SU32~50 Standard Cylinder SU32X220STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X220STC |
| Bore size | Ø32 mm |
| Stroke | 220 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 SAU32X220STC 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 SAU32X220STC 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. |
| ×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.
Uses the 402 N push force at 0.5 MPa to eject light machined components from a fixture, with the 220 mm stroke providing adequate clearance for robotic pickup.
Actuates a diverting gate on a packaging line, where the compact profile saves space and the TC mount allows rigid centerline mounting to the conveyor frame.
Moves small tote boxes along a material handling track, safely handling loads up to 241 N without exceeding 60% of the available thrust.
To replace this discontinued SU32X220STC, order the SAU32X220STC. Confirm the 32 mm bore, 220 mm stroke, 1/8" port, M10x1.25 rod thread, and TC mounting. Because this unit has a magnet, you must switch from CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. If you need higher force, the adjacent 40 mm bore provides 628 N push at 0.5 MPa; if lower force is acceptable, consider smaller bores. A plain cylinder drifts on air loss, so add an external rod lock or pilot-operated check valve for held loads. The SAUF variant offers a built-in valve the SU lacked. At 220 mm stroke, ensure guide alignment to prevent rod bending and side-load wear.
Replacement checklist
Yes, the SU32X220STC is discontinued. The direct replacement is the SAU32X220STC. It shares the same 32 mm bore, 220 mm stroke, 402 N force, 1/8" port, and TC mounting, but requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
The 32 mm bore uses a 1/8" port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa. The speed range is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X220STC replacement — usually within 7-8 hours.