This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X310, 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 SU80X310 is a double-acting profile-type standard cylinder with a Ø80mm bore and 310mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X310, which matches its bore, stroke, force and mounting.
The AirTAC SU80X310 is a discontinued double-acting profile-type cylinder with an 80mm bore and 310mm stroke. AirTAC replaced this unit with the SAU80X310 direct replacement, retaining the exact 3/8 port, M20x1.5 rod thread, 28mm cushions, and SC-series mounting.
The SAU80X310 upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in-valve variant the SU line lacked. Because this specific SKU lacks a magnet, it cannot accept a sensor. Note that a plain cylinder drifts on air loss; use an external rod lock for holding. The 310mm stroke requires external guides to prevent rod bending.
| Model | Airtac SU63-100 Standard Cylinder SU80X310 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X310 |
| Bore size | Ø80 mm |
| Stroke | 310 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 SAU80X310 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 SAU80X310 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. |
| ×310 | 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 sideways at 0.5MPa using the 2513N push force, with the 310mm stroke clearing the conveyor frame.
Ejects formed parts from machinery, relying on adjustable 28mm cushions to decelerate the rod at stroke end.
To replace the SU80X310, order the SAU80X310 with the same 80mm bore, 310mm stroke, 3/8 port, and SC-series mounts. This SKU has no magnet and cannot take a switch; if sensing is needed, specify an SAU80X310-S and use CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For loads needing 3518N at 0.7MPa, the 80mm bore fits; if less force is needed, a 63mm bore provides 1559N. At 310mm stroke, add external guides to prevent rod bending. The air cushion only decelerates; use a pilot-operated check valve to hold loads.
Replacement checklist
Yes, the SU80X310 is discontinued. The direct replacement is the SAU80X310, which matches the 80mm bore, 310mm stroke, 3/8 port, output force, and SC-series mounting.
It provides 2513N push and 2268N pull at 0.5MPa, 3518N at 0.7MPa, and a max of 513kgf at 1.0MPa. This SKU has no magnet and cannot take 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 SAU80X310 replacement — usually within 7-8 hours.