This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X450STC, 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 SU50X450STC
The AirTAC SU32~50 Standard Cylinder SU50X450STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 450mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X450STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X450STC
- 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 SU50X450STC
The AirTAC SU50X450STC is a discontinued double-acting profile-type cylinder featuring a 50mm bore, 450mm stroke, and a 1/4" air port. Delivering 982 N of push force at 0.5 MPa, it utilizes an extruded aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this legacy unit with the exact direct replacement SAU50X450STC, which retains the identical body dimensions, output force, port size, and SC-series mounting accessories.
When upgrading to the SAU50X450STC, the bore, stroke, and TC mounting interface remain unchanged, but the legacy CS1-B/DS1-B sensors used on this -S magnet model are replaced by the current CMSG/DMSG/EMSG switch family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
Airtac SU32~50 Standard Cylinder SU50X450STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X450STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X450STC |
| Bore size | Ø50 mm |
| Stroke | 450 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 SAU50X450STC 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 SAU50X450STC 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 SU50X450STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×450 | 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 SU50X450STC Is Used
Package Diversion
Actuates routing gates on packaging lines where the 982 N push force at 0.5 MPa easily redirects boxes up to 50 kg.
Vertical Lowering
Controls the descent of light platens, requiring external guides across the 450mm stroke to prevent rod bending.
Pallet Stopper
Deploys a physical stop block in material handling zones, utilizing the TC mount for secure hinge-style installation.
Replacing the Airtac SU32~50 Standard Cylinder SU50X450STC with the SAU50X450STC
To replace the discontinued SU50X450STC, order the SAU50X450STC direct equivalent, verifying the 50mm bore, 450mm stroke, 1/4" port, M16x1.5 rod thread, and TC mounting interface. Because this model includes a magnet (-S), you must upgrade your switches from the legacy CS1-B/DS1-B to the modern CMSG/DMSG/EMSG sensors. If your application requires integrated airflow control, consider the SAUF variant which features a built-in 4M solenoid valve. For neighboring sizes, dropping to a 40mm bore yields 628 N push at 0.5 MPa, while stepping up to a 63mm bore provides 1559 N. With a 450mm stroke, use external guide rails to prevent rod bending and side-load damage. Note that a standard cylinder does not hold load without live air; the cushions only decelerate, so add an external rod lock or pilot-operated check valve for suspended loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X450STC
- ✓ 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 SU50X450STC FAQ
Yes, the SU50X450STC is discontinued. The direct replacement is the AirTAC SAU50X450STC. It features the same 50mm bore, 450mm stroke, 1/4" port, output force, and TC mounting interface. The main change is that your legacy CS1-B/DS1-B sensors must be upgraded to CMSG/DMSG/EMSG switches.
This double-acting cylinder has a 1/4" air port and generates 982 N push and 825 N pull at 0.5 MPa. At 0.7 MPa it pushes 1374 N, and the theoretical maximum force is 200 kgf at 1.0 MPa. The cushions only decelerate the load; they do not hold it without live air.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X450STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X450STC replacement — usually within 7-8 hours.