This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X700STC, 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 SU50X700STC
The AirTAC Airtac SU32~50 Standard Cylinder SU50X700STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X700STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke700 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X700STC
- 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 SU50X700STC
The AirTAC SU50X700STC is a discontinued double-acting profile-type cylinder with a 50mm bore and 700mm stroke. Delivering 982 N push force at 0.5 MPa, its extruded aluminum body is more compact than an ISO 15552 unit of the same size. AirTAC replaced this legacy unit with the SAU50X700STC, a direct upgrade retaining the exact 1/4" port, M16x1.5 rod thread, 200 kgf max force, and SC-series TC mounting interface.
The SAU upgrade switches the legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in 4M valve option the SU line lacked. Note that a 700mm stroke demands external guides to prevent rod bending under side loads.
Airtac SU32~50 Standard Cylinder SU50X700STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X700STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X700STC |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAU50X700STC 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 SAU50X700STC 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 SU50X700STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SU50X700STC Is Used
Long-Stroke Diversion
Drives a 700mm lane shifter on a packaging conveyor, using the 982 N thrust to push cartons smoothly between belt lanes.
Component Ejection
Ejects machined parts from a CNC enclosure, where the compact profile body saves space and the adjustable cushions decelerate the 700mm travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X700STC with the SAU50X700STC
To replace the SU50X700STC, order the SAU50X700STC, confirming the 50mm bore, 700mm stroke, 1/4" port, and TC mounting are retained. Because this SKU includes the -S magnet, you must upgrade your sensors: the SAU uses CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B reed sensors. When sizing, 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. For the 700mm stroke, add external guides to prevent rod bending. The air cushion only decelerates the piston; it does not hold load, so use an external rod lock or pilot-operated check valve for vertical safety. If you need integrated flow control, explore the SAUF variant with its built-in valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X700STC
- ✓ 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 SU50X700STC FAQ
Yes, the AirTAC SU50X700STC is discontinued. The direct replacement is the SAU50X700STC. It shares the same 50mm bore, 700mm stroke, 1/4" port, 200 kgf max force, and TC mounting, so it fits your existing setup directly.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a 200 kgf max at 1.0 MPa. Because this model has the -S magnet, note that the SAU replacement requires upgrading from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X700STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X700STC replacement — usually within 7-8 hours.