This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X125STC, 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 SU80X125STC
The AirTAC SU63-100 Standard Cylinder SU80X125STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 125mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X125STC, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X125STC
- 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 SU80X125STC
The AirTAC SU80X125STC is a discontinued double-acting profile-type cylinder with an 80mm bore and 125mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, scaling to a 513kgf maximum at 1.0MPa. AirTAC replaced this unit with the SAU80X125STC, a direct sharing the exact bore, stroke, output force, 3/8" port, and SC-series TC mounting interface.
Because the extruded aluminum body lacks external rods, it is shorter than an ISO 15552 cylinder of the same size. The SAU upgrade transitions the -S magnet to modern CMSG/DMSG/EMSG sensors (retiring the legacy CS1-B/DS1-B), and introduces the SAUF built-in 4M valve option.
Airtac SU63-100 Standard Cylinder SU80X125STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X125STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X125STC |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X125STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X125STC 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 SU80X125STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | 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 SU80X125STC Is Used
Heavy Press Clamping
Secures heavy steel workpieces during machining, utilizing the 2513N push force at 0.5MPa for rigid, zero-shift holding.
Bulk Material Diverting
Drives heavy-duty routing flaps on high-capacity lines, with the TC mount absorbing high lateral pivot stresses.
Replacing the Airtac SU63-100 Standard Cylinder SU80X125STC with the SAU80X125STC
To replace this SU80X125STC, order the SAU80X125STC and verify the 80mm bore, 125mm stroke, 3/8" port, M20x1.5 rod thread, and TC mounting accessory are retained. The built-in magnet means you must upgrade your switches: the old CS1-B/DS1-B sensors are obsolete, replaced by the CMSG/DMSG/EMSG family on the SAU. If you need higher force, the 100mm bore offers 3927N push at 0.5MPa; if less is required, the 63mm bore provides 1559N. Note that a plain cylinder drifts if air is lost—the 28mm adjustable cushions only decelerate at stroke ends, so add an external rod lock or pilot-operated check valve for suspended loads. For self-switching needs, explore the SAUF variant with its integrated 4M solenoid valve, which the SU series lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU80X125STC
- ✓ 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 SU80X125STC FAQ
Yes, the SU80X125STC is discontinued. The direct replacement is the AirTAC SAU80X125STC, which matches the 80mm bore, 125mm stroke, 3/8" port, force, and TC mounting. You simply order the SAU equivalent.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a 513kgf max at 1.0MPa. The -S magnet on this SU worked with legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X125STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X125STC replacement — usually within 7-8 hours.