This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X870S, 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 SU80X870S is a double-acting profile-type standard cylinder with a Ø80mm bore and 870mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X870S, which matches its bore, stroke, force and mounting.
The AirTAC SU80X870S is a discontinued double-acting profile-type cylinder with an 80mm bore and 870mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a 3/8" port. The direct replacement is the SAU80X870S, matching the bore, stroke, force, port and SC-series mounting.
The SAU upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model, and introduces the SAUF built-in-valve option. Note that plain cylinders drift without live air; use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU80X870S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X870S |
| Bore size | Ø80 mm |
| Stroke | 870 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 SAU80X870S 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 SAU80X870S 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. |
| ×870 | 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 along a conveyor using the 2513N push force at 0.5MPa, with the 870mm stroke covering the full transfer distance.
Ejects dense molded components from a press, utilizing the 80mm bore's 513kgf maximum theoretical output at 1.0MPa.
To replace this SU80X870S, order the SAU80X870S ensuring the 80mm bore, 870mm stroke, 3/8" port, M20x1.5 rod thread and SC-series mounting match. Because this is an -S model, you must upgrade your sensors: the old CS1-B/DS1-B switches will not fit the SAU, requiring CMSG/DMSG/EMSG equivalents. For sizing alternatives, dropping to a 63mm bore yields 1559N [email protected], while stepping up to 100mm provides 3927N. At 870mm, this long stroke demands external guide rails to prevent rod bending under side loads. The cylinder cannot hold a load without air; add a pilot-operated check valve. If valve integration is desired, explore the SAUF variant.
Replacement checklist
Yes, the SU80X870S is discontinued. The direct replacement is the AirTAC SAU80X870S. It shares the identical 80mm bore, 870mm stroke, 2513N force, 3/8" port and SC-series mounting, but requires upgrading your -S sensors from CS1-B/DS1-B to CMSG/DMSG/EMSG.
The 80mm bore features a 3/8" port and delivers 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a maximum theoretical force of 513kgf at 1.0MPa. The air cushions only decelerate the load near stroke end; they do not hold position.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X870S replacement — usually within 7-8 hours.