This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X340S, 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 SU100X340S is a double-acting profile-type standard cylinder with a Ø100mm bore and 340mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X340S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X340S is a discontinued double-acting profile-type cylinder with a 100mm bore and 340mm stroke. It delivers 3927N push and 3681N pull at 0.5MPa, peaking at 801kgf. AirTAC replaced this end-of-line unit with the SAU100X340S, a direct upgrade retaining the exact 1/2in port, M20x1.5 rod, and SC-series mounting.
The SAU upgrade switches the -S magnet from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors, and introduces the SAUF valve-integrated option. The 340mm stroke warrants external guides to prevent rod bending under side loads.
| Model | Airtac SU63-100 Standard Cylinder SU100X340S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X340S |
| Bore size | Ø100 mm |
| Stroke | 340 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X340S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X340S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×340 | 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.
Drives robust 200kg material blanks into a forming press, utilizing the 3927N push force at 0.5MPa for reliable heavy-duty indexing.
Ejects loaded pallets from a conveyor line, safely managing a 2356N working load while benefiting from the 29mm adjustable cushions.
Secures heavy industrial molds during machining, taking advantage of the 100mm bore's 801kgf maximum theoretical holding capacity.
To replace this SU100X340S, order the SAU100X340S, verifying the 1/2in port, M20x1.5 thread, and SC mounts. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. Sizing both ways: a neighbouring 80mm bore yields 2513N push at 0.5MPa, while a 100mm bore hits 5497N at 0.7MPa. For the 340mm stroke, add external guides to prevent rod bending. A plain cylinder drifts without air; use a rod lock or pilot check valve for load holding. The SAUF variant adds a built-in valve the SU lacked.
Replacement checklist
Yes, the SU100X340S is discontinued. The direct replacement is the SAU100X340S. It shares the same 100mm bore, 340mm stroke, 1/2in port, output force, and SC-series mounting, meaning it fits the exact same application without modifications.
It delivers 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, and 801kgf max at 1.0MPa. Because this is an -S magnet model, the original SU used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X340S replacement — usually within 7-8 hours.