This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X125STC, 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 SU100X125STC
The AirTAC SU63-100 Standard Cylinder SU100X125STC 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 SAU100X125STC, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU100X125STC
- 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 SU100X125STC
The AirTAC SU100X125STC is a discontinued double-acting profile-type cylinder with a 100mm bore and 125mm stroke. It delivers 3927 N push force at 0.5 MPa and features a 1/2" port, M20x1.5 rod thread, and 29mm adjustable air cushions at both ends. AirTAC replaced this legacy unit with the SAU100X125STC, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series TC mounting interface.
Because the SU is end-of-life, buyers should upgrade to the SAU. This swap changes the sensor family from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU never offered.
Airtac SU63-100 Standard Cylinder SU100X125STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU100X125STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X125STC |
| 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 SAU100X125STC 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 SAU100X125STC 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 SU100X125STC
| 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 SU100X125STC Is Used
Heavy-Duty Stamping
Drives robust pressing and stamping operations requiring up to 3927 N of push force at 0.5 MPa to form thick metal components.
Pallet Handling
Actuates heavy pallet stops and diverters using the TC mount, managing substantial inertial loads with 29mm adjustable cushions.
Injection Molding Extraction
Extracts bulky molded parts from machinery, utilizing the 125mm stroke and 1/2" port for rapid, high-force ejection cycles.
Replacing the Airtac SU63-100 Standard Cylinder SU100X125STC with the SAU100X125STC
To replace this discontinued SU100X125STC, order the SAU100X125STC direct equivalent, verifying the 125mm stroke, 1/2" port, M20x1.5 thread, and TC mounting. The built-in magnet (-S) means you must migrate from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the new SAU. Sizing both ways: if moving down, a 80mm bore yields 2513 N push at 0.5 MPa; if moving up, this 100mm bore provides 3927 N. Remember that a plain cylinder does not hold load on air loss—the cushion only decelerates near stroke end—so install an external rod lock or pilot-operated check valve for vertical holding. If higher cycle automation is needed, consider the SAUF valve-integrated variant. At 125mm stroke, side-load risks are low, but always ensure rigid guidance on the tooling.
Replacement checklist
- ✓ Same bore / stroke → SAU100X125STC
- ✓ 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 SU100X125STC FAQ
Yes, the AirTAC SU100X125STC is discontinued. The direct replacement is the SAU100X125STC. It shares the identical 100mm bore, 125mm stroke, 1/2" port, force output, and SC-series TC mounting, so it fits the same application. You just order the SAU equivalent.
The 100mm bore yields 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a theoretical max of 801 kgf at 1.0 MPa. Because this SKU includes a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU100X125STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X125STC replacement — usually within 7-8 hours.