This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X155, 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 SU50X155
The AirTAC Airtac SU32~50 Standard Cylinder SU50X155 is a double-acting profile-type standard cylinder with a Ø50mm bore and 155mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X155, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke155 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X155
- 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 SU50X155
The AirTAC SU50X155 is a discontinued double-acting profile-type cylinder with a 50mm bore and 155mm stroke. Delivering 982N push force at 0.5MPa via a 1/4" port, its extruded aluminum barrel is more compact than an ISO 15552 unit. AirTAC replaced it with the SAU50X155, a direct sharing the exact bore, stroke, force, port and SC-series mounting.
This non-magnetic SKU cannot accept a sensor, unlike the -S variant which used legacy CS1-B/DS1-B switches (the SAU uses CMSG/DMSG/EMSG). The SAU also adds a SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU50X155 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X155 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X155 |
| Bore size | Ø50 mm |
| Stroke | 155 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 SAU50X155 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 SAU50X155 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 SU50X155
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SU50X155 Is Used
Clamp Actuation
Provides 982N of push force at 0.5MPa for securing mid-weight workpieces during machining operations.
Package Diverting
Executes 155mm strokes to push cartons off a main conveyor belt into secondary packing lanes.
Gate Lifting
Raises lightweight access gates or safety stops with a safe vertical lift capacity around 50kg.
Replacing the Airtac SU32~50 Standard Cylinder SU50X155 with the SAU50X155
To replace this SU50X155, order the SAU50X155: confirm the 50mm bore, 155mm stroke, 1/4" port, M16x1.5 rod thread and SC-series mounting. This non-magnetic SKU cannot take a sensor; if you need position detection, the SAU-S uses modern CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. Sizing both ways: a 40mm bore gives 628N push @0.5MPa, while a 63mm bore yields 1559N. At 155mm stroke, side-load is low, but always guide the rod to prevent bending. The cylinder drifts on air loss—cushions only decelerate—so add an external rod lock for held loads. The SAUF offers a built-in valve the SU lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU50X155
- ✓ 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 SU50X155 FAQ
Yes, the SU50X155 is discontinued. The direct replacement is the AirTAC SAU50X155. It shares the identical 50mm bore, 155mm stroke, 982N force, 1/4" port and SC-series mounting accessories, so it fits the same application without modification.
At 0.5MPa it provides 982N push and 825N pull; at 0.7MPa it pushes 1374N, with a theoretical max of 200kgf at 1.0MPa. This specific SKU lacks a magnet and cannot accept a sensor. The magnet-equipped SAU replacement uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Request a Quote for the SAU50X155
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X155 replacement — usually within 7-8 hours.