This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X1000STC, 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 SU63X1000STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 1000mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X1000STC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X1000STC is a discontinued double-acting profile-type cylinder with a 63 mm bore and 1000 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8 inch port. The direct replacement is the SAU63X1000STC, matching the exact bore, stroke, output force, port size and SC-series mounting footprint.
This SAU upgrade retains the compact extruded aluminum body but introduces current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on this -S model. The SAU line also adds a SAUF built-in 4M solenoid valve variant the SU series never offered. Because the 1000 mm stroke is long, use external guides to prevent rod bending under side loads.
| Model | Airtac SU63-100 Standard Cylinder SU63X1000STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X1000STC |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAU63X1000STC 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 SAU63X1000STC 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. |
| ×1000 | 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 along a 1000 mm conveyor lane using the 1559 N thrust at 0.5 MPa, requiring external guides to support the extended rod.
Shifts heavy machining fixtures across a wide working envelope, relying on the 21 mm adjustable air cushions to decelerate the payload smoothly.
To replace the SU63X1000STC, order the SAU63X1000STC with the identical 63 mm bore, 1000 mm stroke, M16x1.5 rod thread, 3/8 inch port, and TC mounting interface. If sizing alternatives, the adjacent 50 mm bore yields 982 N push at 0.5 MPa, while the 80 mm bore provides 2513 N. The built-in magnet (-S) means you must upgrade your sensors: the old CS1-B/DS1-B switches will not fit the SAU, so select current CMSG/DMSG/EMSG reed or solid-state switches. For the 1000 mm stroke, external load guides are mandatory to prevent rod bending. Finally, a standard cylinder drifts without live air; the cushions only decelerate the piston. For true load holding on air loss, install an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SU63X1000STC is discontinued. The direct replacement is the SAU63X1000STC. It shares the same 63 mm bore, 1000 mm stroke, 3/8 inch port, output force, and TC mounting interface, so it drops directly into the same application.
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 model includes a magnet (-S), note that the SAU replacement upgrades from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X1000STC replacement — usually within 7-8 hours.