This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X580S, 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 SU40X580S
The AirTAC SU32~50 Standard Cylinder SU40X580S 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 SAU40X580S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke580 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X580S
- 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 SU40X580S
The AirTAC SU40X580S is a discontinued double-acting profile-type cylinder with a 40mm bore and 580mm stroke, delivering 628 N push and 528 N pull at 0.5 MPa. AirTAC replaced this legacy unit with the SAU40X580S, a direct upgrade retaining the exact 1/4" port, M12x1.25 rod thread, and SC-series mounting. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
The -S magnet on this SU worked with legacy CS1-B/DS1-B switches, but the SAU replacement upgrades to CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF built-in 4M solenoid valve option, which the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X580S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X580S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X580S |
| 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 SAU40X580S 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 SAU40X580S 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 SU40X580S
| 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 SU40X580S Is Used
Component Ejection
Ejects molded parts from a press using 879 N push at 0.7 MPa, relying on adjustable 21 mm cushions to decelerate at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU40X580S with the SAU40X580S
To replace this discontinued SU40X580S, order the SAU40X580S direct equivalent, verifying your 1/4" port thread (PT, G, or NPT) and SC-series mounting hardware. Because this -S SKU has a magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG on the new SAU. At 0.5 MPa the 40mm bore yields 628 N push; if undersized, the neighboring 50mm bore provides 982 N. For the 580mm stroke, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates the piston; it does not hold load on air loss, so add an external rod lock or pilot-operated check valve for vertical holding. The SAUF variant integrates a valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X580S
- ✓ 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 SU40X580S FAQ
Yes, the AirTAC SU40X580S is discontinued. The direct replacement is the SAU40X580S, which matches the 40mm bore, 580mm stroke, 1/4" port, and SC-series mounting. The SAU body is fully compatible, but if you use the -S magnet, you must upgrade from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors.
At 0.5 MPa it pushes 628 N and pulls 528 N. At 0.7 MPa push is 879 N, and at 0.9 MPa it is 1130 N. The theoretical maximum is 128 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s, and the 1/4" port and M12x1.25 rod thread are fixed by the 40mm bore.
Related AirTAC SAU Cylinders
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