This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X80LB, 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 SU80X80LB is a double-acting profile-type standard cylinder with a Ø80mm bore and 80mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X80LB, which matches its bore, stroke, force and mounting.
The AirTAC SU80X80LB is a discontinued double-acting profile-type cylinder with an 80 mm bore and 80 mm stroke. It delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, utilizing a 25 mm piston rod and a 3/8" port. AirTAC replaced this end-of-life unit with the SAU80X80LB, a direct alternative retaining the exact bore, stroke, force, port size, and SC-series LB mounting interface.
Because the aluminum extrusion lacks external rods, the body is more compact than a standard ISO 15552 cylinder of the same bore. Note that this specific SKU lacks a magnet, so it cannot accept position sensors; furthermore, the SAU upgrade transitions to CMSG/DMSG/EMSG switches and introduces the SAUF built-in 4M solenoid valve variant that the SU line never offered.
| Model | Airtac SU63-100 Standard Cylinder SU80X80LB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X80LB |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAU80X80LB 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 SAU80X80LB 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. |
| ×80 | 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.
Ideal for applying steady clamping or pressing force in automated assembly lines, utilizing the 2513 N push force at 0.5 MPa to seat bearings or secure heavy components.
Drives robust diverters or stopping mechanisms on high-mass conveyor systems, where the 80 mm bore and LB foot mount provide stable lateral resistance against moving loads.
To replace this discontinued SU80X80LB, order the SAU80X80LB direct equivalent, verifying the 80 mm bore, 80 mm stroke, 3/8" port with PT threads, M20x1.5 rod end, and the SC-series LB mounting bracket. When sizing, consider the neighboring 63 mm bore (which provides 1559 N push at 0.5 MPa) or the 100 mm bore (offering 3927 N push at 0.5 MPa) if your application pressure changes. Since this SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B switches, and the SAU replacement would require CMSG/DMSG/EMSG sensors if detection is later needed. Keep in mind that a standard double-acting cylinder drifts without live air—the adjustable 28 mm cushions only decelerate the piston near the stroke ends, so install an external rod lock or pilot-operated check valve for secure load holding. The SAUF variant is also worth exploring if you need a self-switching cylinder with an integrated valve.
Replacement checklist
Yes, the SU80X80LB is discontinued. The direct replacement is the AirTAC SAU80X80LB. It matches the original 80 mm bore, 80 mm stroke, 2513 N push force at 0.5 MPa, 3/8" port, and SC-series LB mounting, fitting the same application without modifications.
At 0.5 MPa it provides 2513 N push and 2268 N pull force, increasing to 3518 N push at 0.7 MPa and 4523 N at 0.9 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa. This specific SKU lacks a magnet and cannot accept sensors; if sensing is required, the SAU replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X80LB replacement — usually within 7-8 hours.