This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X682SN, 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 SU50X682SN
The AirTAC SU32~50 Standard Cylinder SU50X682SN is a double-acting profile-type standard cylinder with a Ø50mm bore and 682mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X682SN, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke682 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X682SN
- 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 SU50X682SN
The AirTAC SU50X682SN is a discontinued double-acting profile-type cylinder with a 50mm bore and 682mm stroke. It delivers 982 N push force at 0.5 MPa via a 1/4 inch port. AirTAC replaced it with the SAU50X682SN, a direct upgrade sharing the exact bore, stroke, force, port and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model, and introduces the SAUF built-in-valve variant. The NBR seal handles -20 to +70 C.
Airtac SU32~50 Standard Cylinder SU50X682SN Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X682SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X682SN |
| Bore size | Ø50 mm |
| Stroke | 682 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 SAU50X682SN 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 SAU50X682SN 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 SU50X682SN
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×682 | 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 SU50X682SN Is Used
Package Diverting
Pushes cartons at 30-800 mm/s on sorting lines, utilizing the 982 N push force to redirect heavy goods without lag.
Material Ejection
Ejects molded parts from machinery, relying on the 21mm adjustable air cushions to decelerate the rod smoothly at cycle end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X682SN with the SAU50X682SN
To replace this discontinued SU50X682SN, order the SAU50X682SN. Confirm the 50mm bore, 682mm stroke, 1/4" port, M16x1.5 rod thread and SC-series mounting. Because this has a -S magnet, you must switch from CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensors. The 682mm stroke exceeds the 50mm bore's 1200mm standard max but requires an external guide to prevent rod bending under side loads. If sizing down, a 40mm bore yields 628 N push; if sizing up, a 63mm bore gives 1559 N. A plain cylinder drifts without live air, so use an external rod lock for load holding. The SAUF valve-integrated option can simplify plumbing.
Replacement checklist
- ✓ Same bore / stroke → SAU50X682SN
- ✓ 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 SU50X682SN FAQ
Yes, the SU50X682SN is discontinued. The direct replacement is the AirTAC SAU50X682SN. It matches the 50mm bore, 682mm stroke, 982 N force, 1/4" port and SC-series mounting, but uses CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B.
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa push is 1374 N, and the theoretical max is 200 kgf at 1.0 MPa. The cylinder does not hold load without live air.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X682SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X682SN replacement — usually within 7-8 hours.