This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1700, 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 SU63X1700 is a double-acting profile-type standard cylinder with a Ø63mm bore and 1700mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1700, which matches its bore, stroke, force and mounting.
The AirTAC SU63X1700 is a discontinued double-acting profile-type cylinder with a 63mm bore and 1700mm stroke. Because 1700mm exceeds the 1500mm standard maximum for this bore, this unit is a non-standard, made-to-order configuration. It delivers 1559N push and 1402N pull at 0.5MPa via a 3/8" port. AirTAC replaced the SU line with the SAU family; the direct replacement is the SAU63X1700, matching the body, bore, stroke, force, port, and SC-series mounting.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a SAUF variant with a built-in 4M solenoid valve—features the SU lacked. Note this specific SKU lacks a magnet (-S), so it cannot accept a magnetic switch. Remember, the air cushion only decelerates; it does not hold the load on air loss.
| Model | Airtac SU63-100 Standard Cylinder SU63X1700 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1700 |
| Bore size | Ø63 mm |
| Stroke | 1700 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 SAU63X1700 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 SAU63X1700 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. |
| ×1700 | 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 1700mm between conveyor lines using 1559N of thrust, requiring external guide rails to prevent rod bending over the extended length.
Extracts totes from deep storage racking where the 63mm bore provides enough force to overcome friction on a non-magnetic, made-to-order 1700mm stroke.
Ejects molded components from a deep press bed, utilizing the 3/8" port for adequate flow while relying on external stops rather than the cylinder for load holding.
To replace this discontinued SU63X1700, order the SAU63X1700. Confirm the 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your existing fixture. If stepping down to a 50mm bore yields 982N push @0.5MPa, while an 80mm bore provides 2513N—size both ways based on your true load. This 1700mm stroke exceeds the 1500mm standard maximum, making it a non-standard, made-to-order item; at this length, use external guides to prevent rod bending and side-load damage. For load holding on air loss, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. The SAUF valve-integrated option is available if you need self-switching.
Replacement checklist
Yes, the SU63X1700 is discontinued. The direct replacement is the AirTAC SAU63X1700. It shares the identical 63mm bore, 1700mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application. Note that 1700mm exceeds the 1500mm standard maximum for this bore, so it remains a non-standard, made-to-order configuration.
The 63mm bore provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa. This specific SKU has no magnet (-S), so it cannot accept a magnetic switch. The older SU used CS1-B/DS1-B switches, but the SAU replacement uses current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1700 replacement — usually within 7-8 hours.