This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X820STC, 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 SU50X820STC
The AirTAC SU32~50 Standard Cylinder SU50X820STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 820mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X820STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke820 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X820STC
- 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 SU50X820STC
The AirTAC SU50X820STC is a discontinued double-acting profile cylinder with an 820 mm stroke and 50 mm bore, delivering 982 N push force at 0.5 MPa. AirTAC replaced it with the SAU50X820STC, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, 21 mm cushions, and SC-series TC mounting interface.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches used on this -S SKU, and adds a SAUF built-in 4M valve option the SU line never had. Because the 820 mm stroke exceeds 300 mm, external guides are recommended to prevent rod bending under side loads.
Airtac SU32~50 Standard Cylinder SU50X820STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X820STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X820STC |
| Bore size | Ø50 mm |
| Stroke | 820 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 SAU50X820STC 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 SAU50X820STC 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 SU50X820STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×820 | 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 SU50X820STC Is Used
Long-Stroke Diversion
Pushes packages across a 820 mm conveyor lane using the 982 N push force, guided externally to prevent rod bending during the long travel.
TC-Mount Assembly Press
Utilizes the TC trunnion mount for pivoting alignment while compacting components with up to 1374 N of force at 0.7 MPa operating pressure.
Replacing the Airtac SU32~50 Standard Cylinder SU50X820STC with the SAU50X820STC
To replace this discontinued SU50X820STC, order the SAU50X820STC keeping the 50 mm bore, 820 mm stroke, 1/4" port, and TC mount. If downsizing, a 40 mm bore yields 628 N push at 0.5 MPa; if upsizing, a 63 mm bore provides 1559 N. The -S magnet means you must switch from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. A plain cylinder drifts without live air, so use a pilot-operated check valve for load holding. At 820 mm, add external guides to prevent rod bending. The SAUF variant offers a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU50X820STC
- ✓ 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 SU50X820STC FAQ
Yes, the SU50X820STC is discontinued. The direct replacement is the AirTAC SAU50X820STC, which shares the same 50 mm bore, 820 mm stroke, 1/4" port, 982 N force, and TC mounting interface.
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 is an -S SKU with a magnet, the legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the SAU upgrade.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X820STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X820STC replacement — usually within 7-8 hours.