This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X520, 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 SU50X520
The AirTAC SU32~50 Standard Cylinder SU50X520 is a double-acting profile-type standard cylinder with a Ø50mm bore and 520mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X520, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke520 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X520
- 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 SU50X520
The AirTAC SU50X520 is a discontinued double-acting profile-type cylinder with a 50mm bore and 520mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore and delivers 982 N push force at 0.5 MPa. AirTAC replaced this unit with the SAU50X520 direct replacement, retaining the exact 1/4" port, M16x1.5 rod thread, 200 kgf max force, and SC-series mounting compatibility.
When upgrading to the SAU50X520, the body dimensions and adjustable 21mm cushions remain identical, but the legacy CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors. Note that this specific SU SKU lacks a magnet, so it cannot accept any sensor without a piston upgrade.
Airtac SU32~50 Standard Cylinder SU50X520 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X520 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X520 |
| Bore size | Ø50 mm |
| Stroke | 520 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 SAU50X520 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 SAU50X520 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 SU50X520
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×520 | 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 SU50X520 Is Used
Long-Stroke Diverting
Pushes packages across a 500mm conveyor lane using the 520mm stroke, relying on the 982 N push force to handle accumulated carton weight.
Pallet Push-Off
Acts as a lateral pusher at the end of a roller conveyor, moving palletized goods with a 50 kg vertical lift equivalent before a wrapping station.
Component Ejection
Ejects machined parts from a 500mm deep fixture, using the adjustable 21mm cushions to decelerate the 20mm rod smoothly at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X520 with the SAU50X520
To replace the discontinued SU50X520, order the SAU50X520 direct equivalent, confirming the 50mm bore, 520mm stroke, 1/4" port, and PT thread type. Because this SKU has no -S magnet, it cannot support a sensor; if position detection is needed, specify an SAU50X520-S and use CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. Remember that a standard cylinder drifts without live air—the cushions only decelerate, so use an external rod lock for held loads. At 520mm, this long stroke risks rod bending under side loads, so use external guides. The SAUF variant adds a built-in 4M valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X520
- ✓ 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 SU50X520 FAQ
Yes, the SU50X520 is discontinued. The direct replacement is the AirTAC SAU50X520. It matches the 50mm bore, 520mm stroke, 1/4" port, 200 kgf max force, and SC-series mounting, so it drops right into the same application.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf max at 1.0 MPa. This specific SKU has no magnet, so it cannot take a sensor; if you order the SAU-S replacement, you must use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Request a Quote for the SAU50X520
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X520 replacement — usually within 7-8 hours.