This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X520S, 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.
Airtac SU63-100 Standard Cylinder SU63X520S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X520S is a double-acting profile-type standard cylinder with a Ø63mm bore and 520mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X520S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke520 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X520S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU63-100 Standard Cylinder SU63X520S
The AirTAC SU63X520S is a discontinued double-acting profile-type cylinder featuring a 63mm bore, 520mm stroke, and a built-in piston magnet. It delivers 1559 N of push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAU63X520S, a direct replacement retaining the exact bore, stroke, output force, 3/8" port, and SC-series mounting compatibility.
When upgrading to the SAU63X520S, the body dimensions remain identical, but the sensor family changes: your old CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU lacked.
Airtac SU63-100 Standard Cylinder SU63X520S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X520S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X520S |
| Bore size | Ø63 mm |
| Stroke | 520 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 SAU63X520S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X520S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU63X520S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×520 | 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.
Where the Airtac SU63-100 Standard Cylinder SU63X520S Is Used
Pallet Diversion
Pushes heavy pallets sideways at 90 degrees using 1559 N of thrust at 0.5 MPa, with the 520mm stroke clearing wide conveyor lanes.
Press Ejection
Ejects molded components from a press bed, utilizing the adjustable 21mm air cushions at both ends to decelerate the 20mm rod smoothly.
Replacing the Airtac SU63-100 Standard Cylinder SU63X520S with the SAU63X520S
To replace this SU63X520S, order the SAU63X520S and verify your 3/8" port threads (PT, G, or NPT) alongside the M16x1.5 rod-end connection. Because this unit has the -S magnet, note that your legacy CS1-B/DS1-B switches must be swapped to CMSG/DMSG/EMSG sensors on the new cylinder. If you need integrated air control, consider the SAUF valve-integrated option. For sizing alternatives, dropping to a 50mm bore yields 982 N push at 0.5 MPa, while an 80mm bore provides 2513 N. Remember that a standard cylinder does not hold load without live air—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for fail-safe holding. Finally, at 520mm of stroke, prevent rod bending by guiding the load externally to avoid side-load stress.
Replacement checklist
- ✓ Same bore / stroke → SAU63X520S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU63-100 Standard Cylinder SU63X520S FAQ
Yes, the SU63X520S is discontinued. The direct replacement is the AirTAC SAU63X520S. It matches the original 63mm bore, 520mm stroke, output force, 3/8" port, and SC-series mounting, so it fits the same application without mechanical modifications.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. Push force is 2182 N at 0.7 MPa and 2805 N at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are not compatible with the SAU replacement; you must upgrade to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X520S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X520S replacement — usually within 7-8 hours.