This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X300H, 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 SU50X300H
The AirTAC SU32~50 Standard Cylinder SU50X300H is a double-acting profile-type standard cylinder with a Ø50mm bore and 300mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X300H, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke300 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X300H
- 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 SU50X300H
The AirTAC SU50X300H is a discontinued double-acting profile-type cylinder with a 50mm bore, 300mm stroke, and Viton H high-temperature seals rated for 0 to 150 C. Generating 982 N of push force at 0.5 MPa, it features an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this end-of-life unit with the SAU50X300H, a direct replacement retaining the exact bore, stroke, 1/4" port, and SC-series mounting.
This no-magnet SKU cannot accept a sensor, unlike the legacy CS1-B/DS1-B switches used on -S models; the SAU replacement upgrades sensing to CMSG/DMSG/EMSG switches. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU32~50 Standard Cylinder SU50X300H Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X300H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X300H |
| Bore size | Ø50 mm |
| Stroke | 300 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 SAU50X300H 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 SAU50X300H 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 SU50X300H
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×300 | 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 SU50X300H Is Used
Hot Product Diversion
Routes heated molded parts along a transfer line using the 300mm stroke and Viton H seals rated for 150 C ambient temperatures.
Oven Door Actuation
Opens and closes industrial curing oven doors where the 982 N push force at 0.5 MPa easily handles the 50 kg vertical load requirement.
Extended Ejection Push
Ejects cast components from a hot press area over a 300mm distance, requiring external guides to prevent rod bending during the long travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X300H with the SAU50X300H
To replace the discontinued SU50X300H, order the SAU50X300H direct equivalent, verifying the 50mm bore, 300mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting accessories are retained. Because this lacks the -S magnet, it cannot accept position sensors; if sensing is needed, specify an SAU -S model and migrate to CMSG/DMSG/EMSG switches. The Viton H seal provides 0-150 C high-temperature operation. At 300mm stroke, prevent rod bending by supporting the load with an external guide to avoid side-load damage. Note that a standard cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for load holding. If you need more force, the 63mm bore offers 1559 N push at 0.5 MPa; if less is acceptable, the 40mm bore provides 628 N.
Replacement checklist
- ✓ Same bore / stroke → SAU50X300H
- ✓ 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 SU50X300H FAQ
Yes, the SU50X300H is discontinued. The direct replacement is the AirTAC SAU50X300H, which matches the 50mm bore, 300mm stroke, 1/4" port, Viton H high-temp seal, and SC-series mounting. The SAU body is fully compatible, though the SAU can also utilize the new SAUF built-in valve option.
The 50mm 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. This specific SKU has no magnet, so it cannot accept sensors. If you need sensing, order the -S version and note the SAU replacement uses CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X300H
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X300H replacement — usually within 7-8 hours.