This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X275, 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 SU50X275
The AirTAC SU32~50 Standard Cylinder SU50X275 is a double-acting profile-type standard cylinder with a Ø50mm bore and 275mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X275, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke275 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X275
- 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 SU50X275
The AirTAC SU50X275 is a discontinued double-acting profile-type cylinder. It delivers 982 N push force at 0.5 MPa through a 50 mm bore and 275 mm stroke. AirTAC replaced this unit with the SAU50X275, a direct upgrade retaining the exact body dimensions, 1/4" port, M16x1.5 rod thread, and SC-series mounting hardware.
Because this SKU lacks a magnet, it cannot accept position sensors. If sensing is needed, the SAU replacement requires current 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 never offered. Mechanically, the extruded aluminum profile remains shorter than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU50X275 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X275 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X275 |
| Bore size | Ø50 mm |
| Stroke | 275 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 SAU50X275 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 SAU50X275 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 SU50X275
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×275 | 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 SU50X275 Is Used
Package Diverting
Actuates diverter arms on packaging lines, utilizing the 982 N push force to redirect cartons efficiently at operating speeds up to 800 mm/s.
Pallet Stop Gate
Controls pallet flow on roller conveyors by raising and lowering a physical stop gate, safely handling loads up to the 50 kg vertical lift threshold.
Clamp Actuation
Secures medium-duty workpieces during machining operations, providing reliable clamping pressure while maintaining a compact machine footprint.
Replacing the Airtac SU32~50 Standard Cylinder SU50X275 with the SAU50X275
To replace the SU50X275, order the SAU50X275 and verify your 1/4" port threads (PT, G, or NPT) alongside your SC-series mounting brackets (LB, FA, FB, CA, CB). This non-magnetic SKU cannot support sensors; if you need end-of-stroke detection, specify an SAU50X275-S and migrate to CMSG/DMSG/EMSG switches. For sizing alternatives, dropping to a 40 mm bore reduces push force to 628 N at 0.5 MPa, while stepping up to a 63 mm bore increases it to 1559 N. Note that a plain cylinder drifts on air loss—the 21 mm cushions only decelerate the piston, so use an external rod lock or pilot-operated check valve for held loads. At 275 mm stroke, ensure adequate guide support to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same bore / stroke → SAU50X275
- ✓ 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 SU50X275 FAQ
Yes, the AirTAC SU50X275 is discontinued. The direct replacement is the SAU50X275. It shares the identical 50 mm bore, 275 mm stroke, output force, 1/4" port, and SC-series mounting, so it fits the same application without mechanical modifications.
The 50 mm bore generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. This specific non-magnetic SKU cannot accept sensors. If sensing is required, the SAU replacement with a magnet (-S) uses current CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
Request a Quote for the SAU50X275
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X275 replacement — usually within 7-8 hours.