This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X490S, 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 SU50X490S
The AirTAC SU32~50 Standard Cylinder SU50X490S is a double-acting profile-type standard cylinder with a Ø50mm bore and 490mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X490S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke490 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X490S
- 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 SU50X490S
The AirTAC SU50X490S is a discontinued double-acting profile-type cylinder with a 50mm bore, 490mm stroke, and a 1/4" air port. Delivering 982 N push force at 0.5 MPa, it is directly replaced by the SAU50X490S direct equivalent. The SAU maintains the exact same body, force, stroke, and SC-series mounting accessories. Additionally, the SAU introduces a SAUF variant with a built-in 4M solenoid valve, a self-switching option the SU line never offered.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; upgrading to the SAU50X490S requires switching to current CMSG/DMSG/EMSG sensors. Note that a plain cylinder drifts without live air; the 21 mm adjustable cushions only decelerate near stroke ends, so use an external rod lock for held loads.
Airtac SU32~50 Standard Cylinder SU50X490S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X490S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X490S |
| Bore size | Ø50 mm |
| Stroke | 490 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X490S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X490S 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 SU50X490S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×490 | 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 SU50X490S Is Used
Pallet Push-Off
Acts as a profile-type ejector on packaging lines, benefiting from the compact extruded aluminum body and adjustable 21mm cushions at both ends.
Vertical Lowering
Lowers light fixtures over the 490mm travel; requires an external rod lock to hold the load securely, as the air cushion only decelerates near the end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X490S with the SAU50X490S
To replace this SU50X490S, order the SAU50X490S direct equivalent, confirming the 50mm bore, 490mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. If the magnet (-S) is required, remember the SAU uses CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches. For loads needing 1374 N at 0.7 MPa, this 50mm bore is ideal; step down to a 40mm bore (628 N at 0.5 MPa) for lighter duties, or up to a 63mm bore (1559 N at 0.5 MPa) for heavier needs. Because the 490mm stroke invites rod bending, use external guides to prevent side-load damage. For load holding on air loss, add a pilot-operated check valve, as cushions only decelerate. If valve integration is desired, explore the SAUF built-in-valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU50X490S
- ✓ 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 SU50X490S FAQ
Yes, the SU50X490S is discontinued. The direct replacement is the SAU50X490S, which shares the same 50mm bore, 490mm stroke, 1/4" port, force, and SC-series mounting. The only change for buyers is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting cylinder has a 1/4" air port and delivers 982 N push / 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X490S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X490S replacement — usually within 7-8 hours.