This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X350SCA, 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 SU80X350SCA is a double-acting profile-type standard cylinder with a Ø80mm bore and 350mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X350SCA, which matches its bore, stroke, force and mounting.
The AirTAC SU80X350SCA is a discontinued double-acting profile-type cylinder with an 80 mm bore and 350 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this end-of-line unit with the SAU80X350SCA, a direct alternative retaining the exact bore, stroke, output force, port size, M20x1.5 rod thread and SC-series CA mounting.
Because the barrel is an extruded aluminum profile rather than a tie-rod assembly, it is shorter and more compact than an ISO 15552 cylinder of the same bore. The -S magnet on this legacy SKU worked with CS1-B/DS1-B switches; the SAU replacement uses current CMSG/DMSG/EMSG sensors and adds an optional SAUF valve-integrated variant.
| Model | Airtac SU63-100 Standard Cylinder SU80X350SCA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X350SCA |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAU80X350SCA 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 SAU80X350SCA 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. |
| ×350 | 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.
Secures heavy steel plates during machining operations, utilizing the 2513 N push force at 0.5 MPa to hold components firmly against the fixture bed.
Extends 350 mm to push loaded pallets off a high-throughput line, requiring external guides to prevent rod bending under the shifting lateral weight.
To replace the discontinued SU80X350SCA, order the SAU80X350SCA direct equivalent, verifying your 80 mm bore, 350 mm stroke, 3/8" port, and CA mounting accessory. If your machine relied on the -S magnet for positioning, note that the SAU upgrade transitions from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensor family. For load sizing, this bore yields 2513 N push and 2268 N pull at 0.5 MPa; if you need less force, a 63 mm bore provides 1559 N, while a 100 mm bore offers 3927 N. Because the stroke is 350 mm, support the load with external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates—so install an external rod lock or pilot-operated check valve for held loads. The SAUF variant adds a built-in 4M solenoid valve if you need self-switching.
Replacement checklist
Yes, the SU80X350SCA is discontinued. The direct replacement is the AirTAC SAU80X350SCA. It matches the 80 mm bore, 350 mm stroke, 3/8" port, M20x1.5 rod, and SC-series CA mounting. The SAU body is fully interchangeable, though the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the older CS1-B/DS1-B switches.
The 3/8" port supplies air to deliver 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa the push force is 3518 N, and the theoretical maximum is 513 kgf at 1.0 MPa. The 28 mm adjustable air cushions at both ends decelerate the load, but an external rod lock is required to hold a load safely without live air pressure.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X350SCA replacement — usually within 7-8 hours.