This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X900S, 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 SU63X900S
The AirTAC SU63-100 Standard Cylinder SU63X900S is a double-acting profile-type standard cylinder with a Ø63mm bore and 900mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X900S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke900 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X900S
- 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 SU63X900S
The AirTAC SU63X900S is a discontinued double-acting profile-type cylinder with a 63 mm bore and 900 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, peaking at a 318 kgf theoretical maximum at 1.0 MPa. AirTAC replaced this end-of-line unit with the SAU63X900S, a direct alternative retaining the exact 3/8" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because of the 900 mm length, external guide rails are recommended to prevent rod bending under side loads. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU63-100 Standard Cylinder SU63X900S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X900S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X900S |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAU63X900S 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 SAU63X900S 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 SU63X900S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SU63X900S Is Used
Long-Stroke Diverters
Pushes packages across a 900 mm conveyor lane using the 1559 N push force at 0.5 MPa, requiring external guides to prevent rod bending over the extended length.
Material Ejectors
Ejects machined parts from a workstation over a long distance, taking advantage of the 318 kgf maximum theoretical force at 1.0 MPa for heavy billets.
Replacing the Airtac SU63-100 Standard Cylinder SU63X900S with the SAU63X900S
To replace this discontinued SU63X900S, order the SAU63X900S direct equivalent, confirming the 63 mm bore, 900 mm stroke, 3/8" port, and SC-series mounting hardware (LB, FA, FB, CA, CB, TC). Because your SKU includes the -S magnet, note the mandatory sensor family change: legacy CS1-B/DS1-B switches will not fit the SAU groove, so upgrade to CMSG/DMSG/EMSG sensors. If your application needs self-switching, consider the SAUF variant with its integrated 4M valve. For sizing alternatives, stepping down to a 50 mm bore yields 982 N push at 0.5 MPa, while stepping up to an 80 mm bore provides 2513 N. At 900 mm, side-load risks are high; always use external guides to prevent rod bending. Finally, neither the SU nor SAU holds load without live air—the cushions only decelerate—so install an external rod lock or pilot-operated check valve for fail-safe holding.
Replacement checklist
- ✓ Same bore / stroke → SAU63X900S
- ✓ 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 SU63X900S FAQ
Yes, the SU63X900S is discontinued. The direct replacement is the AirTAC SAU63X900S. It matches the 63 mm bore, 900 mm stroke, 318 kgf max force, 3/8" port, and SC-series mounting accessories. The only change for buyers is that the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 63 mm bore features a 3/8" port and a 20 mm rod. At 0.5 MPa it provides 1559 N push and 1402 N pull. At 0.7 MPa push is 2182 N, and at 0.9 MPa it is 2805 N. The theoretical maximum force is 318 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X900S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X900S replacement — usually within 7-8 hours.