This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X125S, 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 SU100X125S
The AirTAC SU63-100 Standard Cylinder SU100X125S is a double-acting profile-type standard cylinder with a Ø100mm bore and 125mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X125S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU100X125S
- 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 SU100X125S
The AirTAC SU100X125S is a discontinued double-acting profile-type cylinder with a 100mm bore and 125mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same size while sharing AirTAC SC-series mounting.
The direct replacement is the SAU100X125S, matching the bore, stroke, 1/2" port, M20x1.5 rod thread and output force. Because this SU model includes a magnet (-S), note the sensor family changes: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU63-100 Standard Cylinder SU100X125S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU100X125S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X125S |
| Bore size | Ø100 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X125S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X125S 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 SU100X125S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SU100X125S Is Used
Heavy Stamping Press
Drives robust stamping and forming dies requiring up to 3927 N of thrust at 0.5 MPa, utilizing the 125mm stroke to actuate heavy tooling.
Pallet Diverting
Pushes loaded pallets along high-capacity conveyor lines, leveraging the 200 kg vertical lift equivalent and compact profile body to fit tight frames.
Large Clamp Actuation
Secures oversized workpieces in machining cells, providing reliable clamping force while reusing existing SC-series mounting brackets.
Replacing the Airtac SU63-100 Standard Cylinder SU100X125S with the SAU100X125S
To replace this SU100X125S, order the SAU100X125S. Confirm the 1/2" port (PT/G/NPT), M20x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). The -S magnet means you must upgrade from CS1-B/DS1-B to CMSG/DMSG/EMSG switches. If sizing both ways, the 80mm bore yields 2513 N push at 0.5 MPa, while this 100mm bore hits 5497 N at 0.7 MPa. A plain cylinder drifts on air loss—the 29mm cushions only decelerate; use an external rod lock for held loads. For high-cycle automation, consider the SAUF built-in-valve variant. At 125mm stroke, side-load risks are low, but ensure rigid guidance for the 25mm rod.
Replacement checklist
- ✓ Same bore / stroke → SAU100X125S
- ✓ 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 SU100X125S FAQ
Yes, the SU100X125S is discontinued. The direct replacement is the SAU100X125S. It matches the 100mm bore, 125mm stroke, 1/2" port, force, and SC-series mounting. You simply order the SAU equivalent.
At 0.5 MPa it pushes 3927 N and pulls 3681 N. Push is 5497 N at 0.7 MPa, 7068 N at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. Because this is the -S magnet version, its legacy CS1-B/DS1-B switches are obsolete; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU100X125S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X125S replacement — usually within 7-8 hours.