This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X340FB, 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 SU50X340FB
The AirTAC Airtac SU32~50 Standard Cylinder SU50X340FB is a double-acting profile-type standard cylinder with a Ø50mm bore and 340mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X340FB, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke340 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X340FB
- 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 SU50X340FB
The AirTAC SU50X340FB is a discontinued double-acting profile-type cylinder with a 50mm bore and 340mm stroke. It delivered 982 N push and 825 N pull at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU50X340FB, a direct upgrade retaining the exact body dimensions, M16x1.5 rod thread, force output, and SC-series FB mounting interface.
Because this SKU lacks the -S magnet, it cannot accept a position sensor. If sensing is required, the SAU replacement uses modern CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU32~50 Standard Cylinder SU50X340FB Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X340FB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X340FB |
| Bore size | Ø50 mm |
| Stroke | 340 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 SAU50X340FB 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 SAU50X340FB 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 SU50X340FB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×340 | 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 SU50X340FB Is Used
Package Diverting
Pushes cartons at 90 degrees on a sorting line using the 982 N push force, with the 340mm stroke clearing guide rails.
Component Ejection
Ejects machined aluminium parts from a fixture, relying on adjustable 21mm cushions to decelerate the rod at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X340FB with the SAU50X340FB
To replace the SU50X340FB, order the SAU50X340FB, confirming the 50mm bore, 340mm stroke, 1/4" port, and FB front-flange mounting. If you need to upsize, the 63mm bore yields 1559 N push at 0.5 MPa; if downsizing, the 40mm bore provides 628 N. Note that this non-magnetic SKU cannot support switches, whereas an SAU-S model accepts CMSG/DMSG/EMSG sensors. For the 340mm stroke, use an external guide to prevent rod bending under side loads. A plain cylinder drifts on air loss—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for load holding. The SAUF valve-integrated variant can simplify plumbing if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU50X340FB
- ✓ 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 SU50X340FB FAQ
Yes, the AirTAC SU50X340FB is discontinued. The direct replacement is the SAU50X340FB. It shares the same 50mm bore, 340mm stroke, 982 N force at 0.5 MPa, 1/4" port, and FB mounting, so it fits the same application directly.
It provides 982 N push and 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. Because this specific SKU lacks a magnet, it cannot take a sensor; the SAU-S replacement uses CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X340FB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X340FB replacement — usually within 7-8 hours.