This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X680S, 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 SU80X680S
The AirTAC Airtac SU63-100 Standard Cylinder SU80X680S is a double-acting profile-type standard cylinder with a Ø80mm bore and 680mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X680S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke680 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X680S
- 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 SU80X680S
The AirTAC SU80X680S is a discontinued double-acting profile-type cylinder with an 80 mm bore and 680 mm stroke. It delivers 2513 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this unit with the SAU80X680S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
When upgrading, note that the SAU uses current CMSG/DMSG/EMSG sensors instead of this model's legacy CS1-B/DS1-B switches, and the SAUF variant adds a built-in valve the SU lacked. Because the 680 mm stroke invites rod bending, use external guides to prevent side loads.
Airtac SU63-100 Standard Cylinder SU80X680S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X680S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X680S |
| Bore size | Ø80 mm |
| Stroke | 680 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU80X680S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAU80X680S 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 SU80X680S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×680 | 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 SU80X680S Is Used
Long-Stroke Diversion
Ideal for pushing heavy pallets off a main conveyor line using the full 680 mm travel and 2513 N push force at 0.5 MPa.
Heavy Part Ejection
Ejects dense molded parts from machinery, relying on adjustable 28 mm cushions to decelerate the payload smoothly.
Replacing the Airtac SU63-100 Standard Cylinder SU80X680S with the SAU80X680S
To replace the SU80X680S, order the SAU80X680S after verifying your 3/8" port, M20x1.5 rod thread, and SC-series mounting. The -S magnet means you must switch from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. For the 680 mm stroke, add external guides to prevent rod bending. If sizing alternatives, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Remember, air cushions only decelerate; use an external rod lock or pilot-operated check valve to hold loads securely.
Replacement checklist
- ✓ Same bore / stroke → SAU80X680S
- ✓ 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 SU80X680S FAQ
Yes, the SU80X680S is discontinued. The direct replacement is the AirTAC SAU80X680S. It matches the 80 mm bore, 680 mm stroke, 3/8" port, force, and SC-series mounting, but requires CMSG/DMSG/EMSG sensors instead of the old CS1-B/DS1-B switches.
It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical max of 513 kgf at 1.0 MPa. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement uses CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X680S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X680S replacement — usually within 7-8 hours.