This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1250STC, 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 SU63X1250STC
The AirTAC SU63-100 Standard Cylinder SU63X1250STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 1250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1250STC, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X1250STC
- 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 SU63X1250STC
The AirTAC SU63X1250STC is a discontinued double-acting profile cylinder with a 63 mm bore and 1250 mm stroke. Delivering 1559 N push force at 0.5 MPa (318 kgf max at 1.0 MPa) through a 3/8" port, it is replaced direct by the SAU63X1250STC. The SAU matches the exact bore, stroke, output force, port size and SC-series TC mounting, fitting the same application.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches on this -S model, and adds the SAUF built-in valve option. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU63-100 Standard Cylinder SU63X1250STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X1250STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1250STC |
| Bore size | Ø63 mm |
| Stroke | 1250 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 SAU63X1250STC 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 SAU63X1250STC 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 SU63X1250STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1250 | 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 SU63X1250STC Is Used
Long-Reach Diversion
Uses the 1250 mm stroke to push heavy cartons between sorting lanes, relying on the 1559 N push force at 0.5 MPa to move loads reliably.
Pallet Handling Gate
Actuates a pivoting gate via TC mounting, where the compact 63 mm profile saves space while providing 318 kgf maximum theoretical force.
Replacing the Airtac SU63-100 Standard Cylinder SU63X1250STC with the SAU63X1250STC
To replace this SU63X1250STC with the SAU63X1250STC, confirm the 63 mm bore, 1250 mm stroke, 3/8" port, M16x1.5 rod thread, and TC mounting. Because this -S model has a piston magnet, you must upgrade to the current CMSG/DMSG/EMSG sensor family, as the older CS1-B/DS1-B switches are obsolete. When sizing, a neighboring 80 mm bore provides higher force (2513 N push at 0.5 MPa), while a 50 mm bore offers less (982 N). The plain cylinder does not hold load without live air; the cushions only decelerate, so use an external rod lock or pilot-operated check valve for holding. At 1250 mm, prevent rod bending by guiding the load externally. The SAUF variant adds a built-in valve the SU lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU63X1250STC
- ✓ 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 SU63X1250STC FAQ
Yes, the SU63X1250STC is discontinued. The direct replacement is the AirTAC SAU63X1250STC, which matches the 63 mm bore, 1250 mm stroke, 318 kgf max force, 3/8" port, and TC mounting.
It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and 318 kgf max at 1.0 MPa. Because this is an -S model, the legacy CS1-B/DS1-B sensors are obsolete; the SAU replacement uses CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X1250STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1250STC replacement — usually within 7-8 hours.