This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X300STC, 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 SU80X300STC is a double-acting profile-type standard cylinder with a Ø80mm bore and 300mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X300STC, which matches its bore, stroke, force and mounting.
The AirTAC SU80X300STC is a discontinued double-acting profile-type cylinder with an 80 mm bore, 300 mm stroke, and a 3/8" port. It delivers 2513 N of push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAU80X300STC, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting interface.
Because this SKU includes the -S magnet, it originally used legacy CS1-B/DS1-B switches, whereas the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X300STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X300STC |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAU80X300STC 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 SAU80X300STC 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. |
| ×300 | 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.
Pushes heavy pallets onto auxiliary transfer lines using the 2513 N thrust at 0.5 MPa, with the 300 mm stroke clearing the main conveyor frame.
Ejects dense corrugated cartons from automated stackers, leveraging the compact profile body to fit within tight vertical packaging machinery.
Secures heavy steel blanks during press feeding operations, safely handling loads up to 1508 N without exceeding conservative working limits.
To replace this discontinued SU80X300STC, order the SAU80X300STC. Verify your 80 mm bore, 300 mm stroke, 3/8" port, M20x1.5 rod thread, and TC mounting accessory are retained. If stepping down to a 63 mm bore, expect a drop to 1559 N push at 0.5 MPa; stepping up to 100 mm yields 3927 N. Because this -S SKU has a piston magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. The air cushion only decelerates the load; for dead-load holding, add an external rod lock or pilot-operated check valve. At 300 mm stroke, prevent rod bending by using an external guide to absorb side loads.
Replacement checklist
Yes, the AirTAC SU80X300STC is discontinued. The direct replacement is the SAU80X300STC. It matches the 80 mm bore, 300 mm stroke, 3/8" port, force, and SC-series TC mounting, so it drops right into the same application.
It provides 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 is an -S magnet model, the original CS1-B/DS1-B switches are obsolete; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X300STC replacement — usually within 7-8 hours.