This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X850STC, 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 SU50X850STC
The AirTAC SU32~50 Standard Cylinder SU50X850STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 850mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X850STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke850 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X850STC
- 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 SU50X850STC
The AirTAC SU50X850STC is a discontinued double-acting profile-type cylinder with an 850 mm stroke and a 50 mm bore. It delivers 982 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU50X850STC, a direct replacement retaining the exact body dimensions, output force, port size, 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 magnet model, and it offers a new SAUF built-in-valve variant. Note that air cushions only decelerate the piston; an external rod lock or pilot-operated check valve is required to hold a load.
Airtac SU32~50 Standard Cylinder SU50X850STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X850STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X850STC |
| Bore size | Ø50 mm |
| Stroke | 850 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 SAU50X850STC 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 SAU50X850STC 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 SU50X850STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×850 | 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 SU50X850STC Is Used
Long-Stroke Diversion
Pushes packages across a 850 mm transfer gap on a sorting line, utilizing the 982 N thrust at 0.5 MPa to overcome guide friction.
Extended Ejection
Ejects molded parts from a deep machine bed, relying on the 21 mm adjustable air cushions to decelerate the rod at stroke end.
Replacing the Airtac SU32~50 Standard Cylinder SU50X850STC with the SAU50X850STC
To replace this discontinued SU50X850STC, order the SAU50X850STC. Confirm the 50 mm bore, 850 mm stroke, 1/4" port, M16x1.5 rod thread, and TC mounting. Because this -S SKU has a piston magnet, you must upgrade to CMSG/DMSG/EMSG sensors, as the legacy CS1-B/DS1-B switches are obsolete. If you need self-switching, the SAUF variant integrates a 4M solenoid valve. With an 850 mm stroke, prevent rod bending by using an external guide to absorb side loads. Remember, a plain cylinder drifts without live air; use a rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU50X850STC
- ✓ 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 SU50X850STC FAQ
Yes, the AirTAC SU50X850STC is discontinued. The direct replacement is the SAU50X850STC. It matches the 50 mm bore, 850 mm stroke, 1/4" port, output force, and TC mounting, so it drops right into the same application.
The 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X850STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X850STC replacement — usually within 7-8 hours.