This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X1800, 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 SU100X1800 is a double-acting profile-type standard cylinder with a Ø100mm bore and 1800mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X1800, which matches its bore, stroke, force and mounting.
The AirTAC SU100X1800 is a discontinued double-acting profile-type cylinder with a 100mm bore and 1800mm stroke. Because 1800mm exceeds the 1500mm standard maximum for this bore, it is a non-standard, made-to-order configuration. The direct replacement is the SAU100X1800, preserving the original 1/2" port, M20x1.5 rod thread, output force, and SC-series mounting compatibility.
Upgrading to the SAU series introduces modern sensing and control options. This specific SU SKU lacks a magnet and cannot accept a sensor, but magnet-equipped SAU variants utilize current CMSG, DMSG, and EMSG switches instead of the legacy CS1-B/DS1-B units. The SAU family also adds a SAUF variant featuring a built-in 4M solenoid valve for self-switching operation, an option the original SU line never offered. Both the old and new cylinders share an extruded aluminum body that is more compact than an ISO 15552 cylinder of the same bore size.
| Model | Airtac SU63-100 Standard Cylinder SU100X1800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X1800 |
| Bore size | Ø100 mm |
| Stroke | 1800 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 SAU100X1800 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 SAU100X1800 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. |
| ×1800 | 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 or workpieces across an 1800mm span on a production line using its 3927 N push force at 0.5 MPa, requiring external guides to prevent rod bending over the extended travel distance.
Actuates large sorting gates or heavy mechanical diverters in logistics hubs, taking advantage of the 100mm bore's 801 kgf maximum theoretical output to move substantial masses reliably.
Ejects finished parts or scrap from heavy machinery beds over a long reach, relying on the 29mm adjustable air cushions at both ends to decelerate the 25mm rod smoothly at cycle completion.
To replace the discontinued SU100X1800, order the SAU100X1800 and verify your 1/2" port threads (PT, G, or NPT) alongside your SC-series mounting hardware (LB, FA, FB, CA, or CB). Since this 1800mm unit exceeds the 1500mm standard stroke limit, expect a made-to-order lead time. At 0.5 MPa this 100mm bore generates 3927 N push and 3681 N pull force; if sizing down, a 80mm bore provides 2513 N push, while operating at 0.7 MPa increases the 100mm push force to 5497 N. Because this is a 1800mm long stroke, you must use external guides to prevent rod bending and side-load damage. A plain double-acting cylinder cannot hold a load without live air—the cushion only decelerates near the stroke end—so install an external rod lock or pilot-operated check valve for vertical load holding. This non-magnetic SKU cannot accept a sensor; if position detection is required, the SAU replacement with a magnet uses CMSG/DMSG/EMSG switches, and the SAUF variant offers a built-in valve option.
Replacement checklist
Yes, the SU100X1800 is discontinued and end-of-life. The direct replacement is the AirTAC SAU100X1800. It provides identical functionality with the same 100mm bore, 1800mm stroke, 1/2" port, M20x1.5 rod thread, output force, and SC-series mounting accessories.
At 0.5 MPa it provides 3927 N push and 3681 N pull force; at 0.7 MPa push is 5497 N, and the theoretical maximum is 801 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept a sensor. Magnet-equipped SAU replacements use CMSG, DMSG, or EMSG switches instead of the older CS1-B/DS1-B sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X1800 replacement — usually within 7-8 hours.