This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X75N, 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 SU80X75N is a double-acting profile-type standard cylinder with a Ø80mm bore and 75mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X75N, which matches its bore, stroke, force and mounting.
The AirTAC SU80X75N is a discontinued double-acting profile-type cylinder with an 80mm bore and 75mm stroke. Delivering 2513N push and 2268N pull at 0.5MPa, it uses a 3/8" port and NBR seals. AirTAC replaced this EOL unit with the SAU80X75N, a direct upgrade sharing the exact bore, stroke, force, port, and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors, whereas this legacy SU lacked a magnet entirely and cannot accept switches. The SAU line also adds a SAUF built-in-valve option. Note that air cushions only decelerate; use an external rod lock to hold loads.
| Model | Airtac SU63-100 Standard Cylinder SU80X75N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X75N |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAU80X75N 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 SAU80X75N 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. |
| ×75 | 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.
Halts loaded pallets on roller conveyors where the 80mm bore provides enough force to arrest momentum without rebound.
Ejects formed parts from machinery, benefiting from the NBR seals for standard operating temperatures up to 70C.
To replace this SU80X75N, order the SAU80X75N direct equivalent, verifying the 80mm bore, 75mm stroke, 3/8" port, M20x1.5 rod thread, and NBR seal. Because this specific SKU lacks a magnet (-S), it cannot accept sensors; if position detection is needed, the SAU replacement requires CMSG/DMSG/EMSG switches. If downsizing, a 63mm bore yields 1559N [email protected]; if upsizing, a 100mm bore provides 3927N. Remember that standard cylinders drift without air—a cushion only decelerates, so add a pilot-operated check valve for load holding. The SAUF variant integrates a 4M valve if compact actuation is needed.
Replacement checklist
Yes, the SU80X75N is discontinued. The direct replacement is the SAU80X75N. It matches the 80mm bore, 75mm stroke, 2513N force at 0.5MPa, 3/8" port, and SC-series mounting, but uses current CMSG/DMSG/EMSG sensors.
It delivers 2513N push and 2268N pull at 0.5MPa, 3518N at 0.7MPa, and a 513kgf max at 1.0MPa. This specific SKU has no magnet, so it cannot take sensors. The SAU replacement supports CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X75N replacement — usually within 7-8 hours.