This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X250SFA, 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 SU63-100 Standard Cylinder SU63X250SFA
The AirTAC Airtac SU63-100 Standard Cylinder SU63X250SFA is a double-acting profile-type standard cylinder with a Ø63mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X250SFA, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X250SFA
- 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 SU63-100 Standard Cylinder SU63X250SFA
The AirTAC SU63X250SFA is a discontinued double-acting profile-type cylinder with a 63 mm bore and 250 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, utilizing a 3/8" port and an FA mounting interface. AirTAC replaced this legacy unit with the SAU63X250SFA, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting accessories.
Because the extruded aluminum body lacks external rods, it is shorter and more compact than an ISO 15552 cylinder of the same bore. Note the -S magnet on this old SKU worked with CS1-B/DS1-B switches, whereas the SAU replacement uses current CMSG/DMSG/EMSG sensors, and the new SAUF variant offers a built-in valve the SU line never had.
Airtac SU63-100 Standard Cylinder SU63X250SFA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X250SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X250SFA |
| Bore size | Ø63 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X250SFA carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X250SFA produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU63X250SFA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SU63-100 Standard Cylinder SU63X250SFA Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line using the 1559 N push force at 0.5 MPa with FA foot mounts.
Pallet Stops
Acts as a pneumatic stop gate for 79 kg vertical-equivalent loads on low-profile roller conveyors.
Clamp Actuation
Secures workpieces during machining, where the compact profile body saves space compared to standard ISO cylinders.
Replacing the Airtac SU63-100 Standard Cylinder SU63X250SFA with the SAU63X250SFA
To replace the SU63X250SFA, order the SAU63X250SFA and verify your FA mounting accessory, 3/8" port, and M16x1.5 rod thread. The -S magnet means you must upgrade from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. If sizing alternatives, the neighboring 50 mm bore yields 982 N push at 0.5 MPa, while the 80 mm bore provides 2513 N. A plain cylinder drifts without live air; the cushions only decelerate, so use an external rod lock or pilot-operated check valve for held loads. At 250 mm stroke, ensure adequate guide support to prevent rod bending under side loads. For faster cycling, explore the SAUF built-in 4M solenoid valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU63X250SFA
- ✓ 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 SU63-100 Standard Cylinder SU63X250SFA FAQ
Yes, the SU63X250SFA is discontinued. The direct replacement is the AirTAC SAU63X250SFA. It shares the identical 63 mm bore, 250 mm stroke, 3/8" port, output force, and SC-series FA mounting, so it fits the same application directly.
The 63 mm bore provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. Because this model has the -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X250SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X250SFA replacement — usually within 7-8 hours.