This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X220STC, 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.
Airtac SU32~50 Standard Cylinder SU40X220STC
The AirTAC SU32~50 Standard Cylinder SU40X220STC 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 SAU40X220STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke220 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X220STC
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU40X220STC
The AirTAC SU40X220STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 220mm stroke. It delivers 628N push and 528N pull at 0.5MPa through a 1/4" port. The direct replacement is the SAU40X220STC, matching the bore, stroke, force, port, and SC-series TC mounting. This extruded aluminium body is more compact than an ISO 15552 cylinder of the same size.
The -S magnet on this legacy model worked with CS1-B/DS1-B switches, but the SAU replacement uses current CMSG/DMSG/EMSG sensors. The SAU line also adds a SAUF built-in 4M valve option the SU lacked.
Airtac SU32~50 Standard Cylinder SU40X220STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X220STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X220STC |
| 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 SAU40X220STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X220STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU40X220STC
| 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.
Where the Airtac SU32~50 Standard Cylinder SU40X220STC Is Used
Package Diverting
Pushes cartons at 90 degrees on a sorting line using a 628N push force at 0.5MPa, safely handling loads up to 377N.
Pallet Stopper Gate
Acts as a pneumatic stop for lightweight pallets entering a wrapping station, utilizing the TC mount for pivot action.
Component Ejection
Ejects machined aluminium parts from a fixture, relying on the 21mm adjustable air cushions to decelerate the rod at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU40X220STC with the SAU40X220STC
To replace this discontinued SU40X220STC, order the SAU40X220STC. Confirm the 40mm bore, 220mm stroke, 1/4" port (default PT), M12x1.25 rod thread, and TC mounting. Because this SKU includes the -S magnet, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAU. At 220mm stroke, side-load and rod-bending risks are moderate; ensure guide alignment to prevent premature seal wear. If sizing alternatives, a 32mm bore yields 402N push at 0.5MPa, while a 50mm bore yields 982N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. For self-switching, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X220STC
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU40X220STC FAQ
Yes, the AirTAC SU40X220STC is discontinued. The direct replacement is the SAU40X220STC. It shares the same 40mm bore, 220mm stroke, 628N force at 0.5MPa, 1/4" port, and TC mounting, so it fits the same application directly.
The 40mm bore provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. Because this SKU has a -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement upgrades to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X220STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X220STC replacement — usually within 7-8 hours.