This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X900STC, 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 SU63X900STC
The AirTAC SU63-100 Standard Cylinder SU63X900STC 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 SAU63X900STC, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke900 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X900STC
- 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 SU63X900STC
The AirTAC SU63X900STC is a discontinued double-acting profile-type cylinder with a 63 mm bore and 900 mm stroke. Delivering 1559 N push and 1402 N pull at 0.5 MPa, it features an extruded aluminum barrel and adjustable air cushions. AirTAC replaced this EOL unit with the SAU63X900STC, a direct replacement retaining the exact bore, stroke, 3/8" port, M16x1.5 rod thread, and SC-series TC mounting interface.
When upgrading to the SAU, your TC mounting and body dimensions stay identical, but the sensor family changes: the SU's legacy CS1-B/DS1-B switches are replaced by current CMSG/DMSG/EMSG switches. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU never offered.
Airtac SU63-100 Standard Cylinder SU63X900STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X900STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X900STC |
| 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 SAU63X900STC 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 SAU63X900STC 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 SU63X900STC
| 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 SU63X900STC Is Used
Long-Stroke Diversion
Ideal for pushing heavy pallets across a 900 mm transfer line where 1559 N of thrust at 0.5 MPa reliably overcomes friction.
TC-Mounted Gating
Uses the TC pivot mount to actuate heavy safety gates or machine guards, swinging through the long 900 mm travel distance.
Replacing the Airtac SU63-100 Standard Cylinder SU63X900STC with the SAU63X900STC
To replace the SU63X900STC, order the SAU63X900STC, confirming the 63 mm bore, 900 mm stroke, 3/8" port, and TC mounting are retained. Because this unit has a -S magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. If sizing alternatives, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N. For load holding, note that a plain cylinder drifts without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for suspended loads. At 900 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. If valve integration is desired, explore the SAUF built-in-valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU63X900STC
- ✓ 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 SU63X900STC FAQ
Yes, the AirTAC SU63X900STC is discontinued. The direct replacement is the SAU63X900STC. It shares the same 63 mm bore, 900 mm stroke, 3/8" port, output force, and SC-series TC mounting, so it fits the same application directly.
The 63 mm bore delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa. Because this SU model has a -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X900STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X900STC replacement — usually within 7-8 hours.