This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X700STC, 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 SU40X700STC
The AirTAC Airtac SU32~50 Standard Cylinder SU40X700STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X700STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke700 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X700STC
- 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 SU40X700STC
The AirTAC SU40X700STC is a discontinued double-acting profile-type cylinder featuring a 40mm bore, 700mm stroke, and a 1/4" port. Generating 628 N of push force at 0.5 MPa, its direct replacement is the SAU40X700STC, which preserves the original bore, stroke, output force, port size, and SC-series TC mounting interface.
This compact extruded-aluminium body is shorter than an ISO 15552 unit of the same bore. Note that the SAU upgrade switches from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve variant the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X700STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X700STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X700STC |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAU40X700STC 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 SAU40X700STC 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 SU40X700STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SU40X700STC Is Used
Long-Reach Diversion
Pushes packages across a 700mm lane span on a sorting line, utilizing the 628 N push force at 0.5 MPa to deflect varying carton weights reliably.
Extended Stroke Ejection
Clears machined aluminium parts from a deep fixture over 700mm, taking advantage of the compact profile body to save machine footprint.
Replacing the Airtac SU32~50 Standard Cylinder SU40X700STC with the SAU40X700STC
To replace this discontinued SU40X700STC, order the SAU40X700STC, confirming the 40mm bore, 700mm stroke, 1/4" port, M12x1.25 rod thread, and TC mounting accessory are retained. Because this SKU includes a magnet (-S), you must upgrade your sensors: the SU used CS1-B/DS1-B switches, while the SAU requires CMSG/DMSG/EMSG switches. A plain cylinder does not hold load without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for suspended loads. With a 700mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage. If you need more force, the 50mm bore yields 982 N push at 0.5 MPa; if less is acceptable, the 32mm bore provides 402 N.
Replacement checklist
- ✓ Same bore / stroke → SAU40X700STC
- ✓ 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 SU40X700STC FAQ
Yes, the AirTAC SU40X700STC is discontinued. The direct replacement is the SAU40X700STC. It matches the 40mm bore, 700mm stroke, 1/4" port, output force, and TC mounting, but the SAU uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 40mm bore features a 1/4" port. It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X700STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X700STC replacement — usually within 7-8 hours.