This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X170S, 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 SU63X170S is a double-acting profile-type standard cylinder with a Ø63mm bore and 170mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X170S, which matches its bore, stroke, force and mounting.
The AirTAC SU63X170S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 170 mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 cylinder of the same bore while delivering 1559 N push force at 0.5 MPa. AirTAC replaced this unit with the SAU63X170S, a direct replacement retaining the exact 3/8" port, M16x1.5 rod thread, output force, and SC-series mounting.
When upgrading to the SAU63X170S, the body, bore, stroke, and cushions remain unchanged, but the legacy CS1-B/DS1-B switches used on this -S magnet model are replaced by the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series lacked.
| Model | Airtac SU63-100 Standard Cylinder SU63X170S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X170S |
| Bore size | Ø63 mm |
| Stroke | 170 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 SAU63X170S 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 SAU63X170S 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. |
| ×170 | 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.
Actuates diverting arms on packaging lines, using the 1559 N push force to push cartons onto adjacent belts at speeds up to 800 mm/s.
Deploys a heavy-duty stop gate to halt loaded pallets on gravity conveyors, absorbing kinetic energy with the 21 mm adjustable air cushions.
To replace the SU63X170S, order the SAU63X170S and verify your 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC). Because this SKU includes the -S magnet, you must update your sensing to the SAU-compatible CMSG/DMSG/EMSG switches, as the older CS1-B/DS1-B units are obsolete. If your application needs integrated flow control, explore the SAUF variant which features a built-in 4M valve. For loads requiring 2805 N push at 0.9 MPa, the 63 mm bore is ideal, but if you need less force, step down to a 50 mm bore (982 N at 0.5 MPa). Note that a plain cylinder drifts on air loss—the 21 mm adjustable cushions only decelerate near stroke end, so add an external rod lock or pilot-operated check valve for held loads. At 170 mm stroke, side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
Yes, the SU63X170S is discontinued. The direct replacement is the AirTAC SAU63X170S. It shares the identical 63 mm bore, 170 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application. You simply order the SAU equivalent.
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 maximum theoretical force of 318 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; 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 SAU63X170S replacement — usually within 7-8 hours.