This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X320, 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 SU50X320
The AirTAC Airtac SU32~50 Standard Cylinder SU50X320 is a double-acting profile-type standard cylinder with a Ø50mm bore and 320mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X320, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke320 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X320
- 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 SU50X320
The AirTAC SU50X320 is a discontinued double-acting profile-type cylinder with a 50mm bore and 320mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it delivers 982 N push and 825 N pull at 0.5 MPa. AirTAC replaced this legacy unit with the SAU50X320 direct replacement, matching the exact bore, stroke, output force, 1/4" port, and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a position sensor. If sensing is needed on the SAU upgrade, the modern CMSG/DMSG/EMSG switches fit the new body (the SU used legacy CS1-B/DS1-B). Note that a standard cylinder drifts without live air; use an external rod lock for held loads.
Airtac SU32~50 Standard Cylinder SU50X320 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X320 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X320 |
| Bore size | Ø50 mm |
| Stroke | 320 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 SAU50X320 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 SAU50X320 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 SU50X320
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×320 | 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 SU50X320 Is Used
Package Diverting
Drives diverting arms on packaging lines using the 982 N push force, while the 320mm stroke clears wider product lanes.
Clamp Actuation
Secures medium workpieces during machining, taking advantage of the 21mm adjustable cushions to soften end-of-stroke impacts.
Replacing the Airtac SU32~50 Standard Cylinder SU50X320 with the SAU50X320
To replace this SU50X320, order the SAU50X320 direct equivalent, verifying your 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). Since this specific SKU has no magnet (-S), it cannot support sensing; the SAU upgrade uses CMSG/DMSG/EMSG sensors if you need to add them. If your application needs less force, a 40mm bore provides 628 N; for heavier cycles, a 63mm bore offers 1559 N. With a 320mm stroke, prevent rod bending by guiding the load externally to avoid side-load stress. Finally, remember the air cushion only decelerates the piston near stroke end—it will not hold the load on air loss, so add a pilot-operated check valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU50X320
- ✓ 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 SU50X320 FAQ
Yes, the AirTAC SU50X320 is discontinued. The direct replacement is the SAU50X320. It shares the identical 50mm bore, 320mm stroke, 1/4" port, output force, and SC-series mounting, so it fits the same application. The SAU also adds a SAUF built-in-valve option the SU line lacked.
At 0.5 MPa it provides 982 N push and 825 N pull, increasing to 1374 N at 0.7 MPa, with a theoretical max of 200 kgf at 1.0 MPa. This specific SKU has no magnet, so it cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Request a Quote for the SAU50X320
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X320 replacement — usually within 7-8 hours.