This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X580STC, 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 SU40X580STC
The AirTAC SU32~50 Standard Cylinder SU40X580STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 580mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X580STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke580 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X580STC
- 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 SU40X580STC
The AirTAC SU40X580STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 580mm stroke. It delivers 628N push and 528N pull at 0.5MPa, operating at 30-800mm/s through a 1/4-inch port. AirTAC replaced this legacy unit with the SAU40X580STC, a direct alternative retaining the exact bore, stroke, force, port, and SC-series TC mounting interface.
Because the SU is end-of-life, buyers should upgrade to the SAU. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore. The SAU brings current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches on this -S SKU, and introduces the SAUF built-in-valve variant the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X580STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X580STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X580STC |
| Bore size | Ø40 mm |
| Stroke | 580 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 SAU40X580STC 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 SAU40X580STC 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 SU40X580STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×580 | 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 SU40X580STC Is Used
Long-Stroke Diversion
Pushes packages across a 580mm transfer gap using the 628N push force at 0.5MPa, with external guides preventing rod bending on the extended stroke.
Component Ejection
Ejects machined parts from a fixture using the TC mount for stable centerline support, sensing end-of-stroke with the legacy CS1-B/DS1-B switches.
Replacing the Airtac SU32~50 Standard Cylinder SU40X580STC with the SAU40X580STC
To replace the discontinued SU40X580STC, order the SAU40X580STC, matching the 40mm bore, 580mm stroke, M12x1.25 rod thread, 1/4-inch port, and TC mounting. If your application needs a smaller footprint, the 32mm bore yields 402N push at 0.5MPa; for more power, the 50mm bore provides 982N. Remember that a plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. At 580mm, prevent rod bending by guiding the load externally. The SAU -S magnet works with CMSG/DMSG/EMSG switches, unlike the old CS1-B/DS1-B.
Replacement checklist
- ✓ Same bore / stroke → SAU40X580STC
- ✓ 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 SU40X580STC FAQ
Yes, the SU40X580STC is discontinued. The direct replacement is the SAU40X580STC. It matches the 40mm bore, 580mm stroke, 628N force at 0.5MPa, 1/4-inch port, and TC mounting. You simply order the SAU equivalent.
The 40mm bore delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a 128kgf theoretical max at 1.0MPa. Because this is an -S SKU with a magnet, it used legacy CS1-B/DS1-B switches; the SAU40X580STC replacement upgrades these to current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X580STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X580STC replacement — usually within 7-8 hours.