This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X125TC, 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.

The AirTAC SU63-100 Standard Cylinder SU80X125TC 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 SAU80X125TC, which matches its bore, stroke, force and mounting.
The AirTAC SU80X125TC is a discontinued double-acting profile-type cylinder featuring an 80 mm bore, 125 mm stroke, and a TC mounting interface. It delivers 2513 N of push force at 0.5 MPa through a 3/8" port. AirTAC replaced this end-of-line unit with the SAU80X125TC, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a sensing switch. The SAU upgrade also switches to current CMSG/DMSG/EMSG sensors for magnetized variants and introduces the SAUF built-in-valve option absent from the SU line.
| Model | Airtac SU63-100 Standard Cylinder SU80X125TC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X125TC |
| 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 SAU80X125TC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X125TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| 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.
Uses the TC mount to deflect heavy pallets along a sorting line, relying on the 2513 N push force at 0.5 MPa to redirect loads smoothly.
Ejects formed metal components from a press bed, utilizing the compact profile body to fit within tight machine guarding.
To replace this discontinued SU80X125TC, order the SAU80X125TC with the identical TC mount, 125 mm stroke, and 3/8" port. Confirm your thread standard (PT, G, or NPT) during ordering. Since this specific SKU has no magnet (-S), it cannot support a sensor; if position detection is required on the new SAU, add the -S option and note that the legacy CS1-B/DS1-B switches are replaced by the CMSG/DMSG/EMSG family. If your application needs self-switching, explore the SAUF variant with its integrated 4M solenoid valve. When sizing, stepping down to a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to 100 mm provides 3927 N. Finally, a standard cylinder drifts without live air—the cushion only decelerates at stroke end—so install an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
Yes, the SU80X125TC is discontinued. The direct replacement is the AirTAC SAU80X125TC, which matches the 80 mm bore, 125 mm stroke, 3/8" port, 513 kgf max force, and TC mounting footprint.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a 513 kgf maximum at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept sensors; magnetized SAU replacements use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X125TC replacement — usually within 7-8 hours.