This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X335, 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 Airtac SU63-100 Standard Cylinder SU80X335 is a double-acting profile-type standard cylinder with a Ø80mm bore and 335mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X335, which matches its bore, stroke, force and mounting.
The AirTAC SU80X335 is a discontinued double-acting profile-type cylinder with an 80mm bore and 335mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, making it a robust choice for heavy-duty actuation. AirTAC replaced this end-of-life unit with the SAU80X335, a direct replacement retaining the exact 3/8-inch port, M20x1.5 rod thread, and SC-series mounting compatibility.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a SAUF built-in-valve variant the SU line lacked. Note this specific SKU lacks a magnet and cannot accept switches, and its 335mm stroke requires external guides to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU80X335 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X335 |
| Bore size | Ø80 mm |
| Stroke | 335 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 SAU80X335 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 SAU80X335 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. |
| ×335 | 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.
Drives stout clamping and pressing fixtures requiring up to 1508N of safe working force at 0.5MPa.
Pushes heavy molded parts out of machinery, benefiting from the 28mm adjustable air cushions.
To replace the SU80X335, order the SAU80X335 direct equivalent, verifying your 3/8-inch port, M20x1.5 rod thread, and SC-series mounting hardware. If sizing alternatives, the neighboring 63mm bore yields 1559N push at 0.5MPa, while the 100mm bore provides 3927N. Because this 335mm stroke is relatively long, incorporate external linear guides to prevent rod bending under side loads. A plain cylinder drifts without live air—the 28mm cushions only decelerate near stroke ends—so install an external rod lock or pilot-operated check valve for secure load holding. This no-magnet SKU cannot accept sensors, but if sensing is required, the SAU replacement uses CMSG/DMSG/EMSG switches. The SAUF variant adds a built-in 4M solenoid valve for self-switching.
Replacement checklist
Yes, the SU80X335 is discontinued. The direct replacement is the AirTAC SAU80X335. It matches the 80mm bore, 335mm stroke, 2513N force at 0.5MPa, 3/8-inch port, and SC-series mounting accessories.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a 513kgf maximum at 1.0MPa. This specific SKU has no magnet and cannot accept switches. If sensing is needed, the SAU80X335 replacement supports CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X335 replacement — usually within 7-8 hours.