This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X700STC, 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 SU63X700STC is a double-acting profile-type standard cylinder with a Ø63mm bore and 700mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X700STC, which matches its bore, stroke, force and mounting.
The AirTAC SU63X700STC is a discontinued double-acting profile-type cylinder with a 63mm bore and 700mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, operating at 30-800mm/s through a 3/8" port. AirTAC replaced this end-of-line unit with the SAU63X700STC, a direct replacement retaining the exact body dimensions, M16x1.5 rod thread, force class, and SC-series TC mounting interface.
This legacy SKU includes a piston magnet for CS1-B/DS1-B switches; upgrading to the SAU requires switching to current CMSG/DMSG/EMSG sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked. Note that standard air cushions only decelerate the load; an external rod lock is needed to hold position.
| Model | Airtac SU63-100 Standard Cylinder SU63X700STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X700STC |
| Bore size | Ø63 mm |
| Stroke | 700 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 SAU63X700STC 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 SAU63X700STC 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. |
| ×700 | 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.
Ideal for pushing heavy pallets or workpieces across a 700mm gap on a production line, utilizing the 1559N push force at 0.5MPa with external guides to prevent rod bending.
Deploys the 318kgf maximum theoretical force at 1.0MPa to eject dense molded parts or metal blanks from machinery, using the TC mount for stable pivot action.
To replace the SU63X700STC, order the SAU63X700STC, confirming the 63mm bore, 700mm stroke, 3/8" port, and TC mounting accessory are retained. Because this SKU has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the new cylinder. If your application requires integrated directional control, consider the SAUF63X700STC variant which features a built-in valve the SU lacked. With a 700mm stroke, prevent rod bending by ensuring external linear guides carry side loads. Sizing context: a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. A plain cylinder drifts without live air, so use a pilot-operated check valve for load holding.
Replacement checklist
Yes, the SU63X700STC is discontinued. The direct replacement is the SAU63X700STC. It shares the same 63mm bore, 700mm stroke, 3/8" port, output force, and SC-series TC mounting, so it fits the same application directly.
The 63mm bore provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a 318kgf maximum at 1.0MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X700STC replacement — usually within 7-8 hours.