This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X555SH, 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 SU50X555SH
The AirTAC SU32~50 Standard Cylinder SU50X555SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 555mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X555SH, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke555 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X555SH
- 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 SU50X555SH
The AirTAC SU50X555SH is a discontinued double-acting profile-type cylinder with a 50mm bore, 555mm stroke, and Viton H high-temperature seals rated for 0-150 C. Generating 982 N push force at 0.5 MPa, it features an extruded aluminum barrel with adjustable air cushions at both ends. The direct replacement is the SAU50X555SH, matching the bore, stroke, force, 1/4" port, and SC-series mounting.
Because the -S magnet relied on legacy CS1-B/DS1-B switches, upgrading to the SAU requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF valve-integrated variant the SU lacked. Note that a plain cylinder drifts on air loss; use an external rod lock for load holding.
Airtac SU32~50 Standard Cylinder SU50X555SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X555SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X555SH |
| Bore size | Ø50 mm |
| Stroke | 555 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 SAU50X555SH 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 SAU50X555SH 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 SU50X555SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×555 | 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 SU50X555SH Is Used
Hot Product Diversion
Routes freshly molded plastic parts along a cooling line. The Viton H seals withstand ambient radiant heat up to 150 C, while the 982 N push force easily deflects lightweight goods.
Heated Press Ejection
Ejects cured rubber profiles from a heated platen area. The 555mm stroke provides the necessary clearance, though an external guide should support the rod to prevent bending.
High-Temp Gating
Actuates a diverter gate near an industrial oven. The direct replacement SAU50X555SH maintains the exact 1/4" port and profile body, dropping right into the existing SC-series bracket.
Replacing the Airtac SU32~50 Standard Cylinder SU50X555SH with the SAU50X555SH
To replace this SU50X555SH, order the SAU50X555SH, verifying the 50mm bore, 555mm stroke, M16x1.5 rod thread, 1/4" port, and SC-series mounting (LB/FA/FB/CA/CB). The -H Viton seal provides 0-150 C heat resistance, while the -S magnet means you must switch from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. If you need self-switching, explore the SAUF built-in 4M valve variant. For force margins, the 50mm bore yields 982 N push at 0.5 MPa; dropping to a 40mm bore drops force to 628 N, while a 63mm bore increases it to 1559 N. At 555mm stroke, prevent rod bending by supporting the load with an external guide. Finally, the air cushion only decelerates the piston; it does not hold load on air loss, so add a pilot-operated check valve or rod lock if required.
Replacement checklist
- ✓ Same bore / stroke → SAU50X555SH
- ✓ 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 SU50X555SH FAQ
Yes, the AirTAC SU50X555SH is discontinued. The direct replacement is the SAU50X555SH. It features the same 50mm bore, 555mm stroke, 1/4" port, output force, and SC-series mounting. You simply order the SAU equivalent.
At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. Because this model has the -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X555SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X555SH replacement — usually within 7-8 hours.