This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X100STC, 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 SU40X100STC
The AirTAC Airtac SU32~50 Standard Cylinder SU40X100STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X100STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X100STC
- 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 SU40X100STC
The AirTAC SU40X100STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 100mm stroke. It delivers 628N push force at 0.5MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU40X100STC, a direct alternative retaining the exact bore, stroke, output force, and SC-series TC mounting interface.
Because the extruded aluminum body lacks external rods, it is more compact than an ISO 15552 cylinder of the same size. This unit includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAU replacement uses modern CMSG/DMSG/EMSG sensors. Note that the SAU family also offers a SAUF variant with a built-in valve the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X100STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X100STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X100STC |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAU40X100STC 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 SAU40X100STC 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 SU40X100STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SU40X100STC Is Used
Package Diverting
Actuates diverting gates on packaging lines where 628N push force easily redirects standard weight cartons.
Clamp Actuation
Secures medium workpieces during machining using the TC mount for rigid, centerline pivot attachment.
Replacing the Airtac SU32~50 Standard Cylinder SU40X100STC with the SAU40X100STC
To replace this discontinued SU40X100STC, order the SAU40X100STC, matching the 40mm bore, 100mm stroke, M12x1.25 rod thread, 1/4" port, and TC mounting. If your machine used the -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors as the old CS1-B/DS1-B switches are obsolete. For higher loads, the neighboring 50mm bore yields 982N push at 0.5MPa, while a 32mm bore provides 402N. Remember that a standard cylinder drifts without live air—the cushions only decelerate at stroke end—so install an external rod lock or pilot-operated check valve if you need to hold a load vertically.
Replacement checklist
- ✓ Same bore / stroke → SAU40X100STC
- ✓ 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 SU40X100STC FAQ
Yes, the SU40X100STC is discontinued. The direct replacement is the AirTAC SAU40X100STC, offering identical 40mm bore, 100mm stroke, 1/4" port, and TC mounting compatibility.
At 0.5MPa it provides 628N push and 528N pull, 879N push at 0.7MPa, and a 128kgf max at 1.0MPa. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X100STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X100STC replacement — usually within 7-8 hours.