This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X250N, 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 SU80X250N is a double-acting profile-type standard cylinder with a Ø80mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X250N, which matches its bore, stroke, force and mounting.
The AirTAC SU80X250N is a discontinued double-acting profile-type cylinder with an 80 mm bore and 250 mm stroke. It delivers 2513 N push force at 0.5 MPa and features an extruded aluminum barrel that is shorter and more compact than an ISO 15552 cylinder of the same size. The direct replacement is the SAU80X250N, which matches the bore, stroke, 3/8" port, M20x1.5 rod thread, and SC-series mounting.
This NBR-sealed unit operates from -20 to +70 C. Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade uses modern CMSG/DMSG/EMSG switches and adds a SAUF built-in-valve option.
| Model | Airtac SU63-100 Standard Cylinder SU80X250N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X250N |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAU80X250N 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 SAU80X250N 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. |
| ×250 | 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 secondary packaging lines using the 2513 N push force at 0.5 MPa with reliable double-acting control.
Ejects formed metal parts from press beds, utilizing the adjustable 28 mm air cushions to decelerate the 25 mm rod smoothly.
To replace this discontinued SU80X250N, order the SAU80X250N. Confirm the 80 mm bore, 250 mm stroke, 3/8" port, PT thread, and SC-series mounting are identical. This SKU has no magnet and cannot take a sensor; if sensing is needed, the SAU replacement requires CMSG/DMSG/EMSG switches. If you need higher force, the 100 mm bore offers 3927 N push at 0.5 MPa; for less force, the 63 mm bore provides 1559 N. The 250 mm stroke is under the 1500 mm standard maximum, but always use guide rails to prevent rod bending under side loads. A plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for held loads. The SAUF variant integrates a 4M valve if you need self-switching.
Replacement checklist
Yes, the AirTAC SU80X250N is discontinued. The direct replacement is the SAU80X250N. It shares the same 80 mm bore, 250 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application directly.
The bore delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N at 0.9 MPa, and a max of 513 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X250N replacement — usually within 7-8 hours.