This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1900, 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 SU63X1900 is a double-acting profile-type standard cylinder with a Ø63mm bore and 1900mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1900, which matches its bore, stroke, force and mounting.
The AirTAC SU63X1900 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 1900 mm stroke. Because 1900 mm exceeds the 1500 mm maximum standard stroke for this bore, it is a non-standard, made-to-order unit. It delivers a 1559 N push force at 0.5 MPa. AirTAC replaced the SU line with the SAU family; the direct replacement is the SAU63X1900, matching the bore, stroke, force, 3/8" port, and SC-series mounting.
This SKU lacks a magnet, so it cannot accept a sensor. The SAU upgrade introduces the CMSG/DMSG/EMSG sensor family for -S variants, plus a SAUF built-in 4M solenoid valve option the SU never had. Note that a plain cylinder drifts on air loss; use an external rod lock for holding.
| Model | Airtac SU63-100 Standard Cylinder SU63X1900 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1900 |
| Bore size | Ø63 mm |
| Stroke | 1900 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X1900 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X1900 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). |
|---|---|
| 63 | Bore size in mm. |
| ×1900 | 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 workpieces between distant processing stations on a conveyor line, utilizing the full 1900 mm travel distance.
Acts as a remote ejector for heavy pallets at the end of accumulation rollers, providing 1559 N of thrust at 0.5 MPa.
Sweeps metal chips or scrap parts out of a large machine tool enclosure into a collection bin during automated cycles.
To replace the discontinued SU63X1900, order the SAU63X1900. Confirm the 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your fixture. This no-magnet SKU cannot take a switch; if sensing is needed, specify an SAU63X1900S and migrate to CMSG/DMSG/EMSG switches. The 1900 mm stroke exceeds the 1500 mm standard limit, making it non-standard. At this length, prevent rod bending by guiding the load externally to avoid side loads. For force context, the 63 mm bore yields 1559 N push at 0.5 MPa (neighbouring bores: 50 mm gives 982 N, 80 mm gives 2513 N). The cushion only decelerates; it does not hold the load on air loss, so add a pilot-operated check valve or rod lock for vertical lifting.
Replacement checklist
Yes, the SU63X1900 is discontinued. The direct replacement is the AirTAC SAU63X1900. It shares the same 63 mm bore, 1900 mm stroke, output force, 3/8" port, and SC-series mounting, so it fits the same application directly.
The 63 mm bore provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. This specific SKU has no magnet (-S), so it cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches on its -S variants.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1900 replacement — usually within 7-8 hours.