This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X680S, 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 SU63X680S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X680S is a double-acting profile-type standard cylinder with a Ø63mm bore and 680mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X680S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke680 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X680S
- 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 SU63X680S
The AirTAC SU63X680S is a discontinued double-acting profile cylinder with a 63mm bore and 680mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa via a 3/8" port. Because this legacy unit is end-of-life, order the direct replacement SAU63X680S. It matches the exact bore, stroke, force, port, and SC-series mounting.
The SAU upgrade retains the compact extruded aluminum body but modernizes the sensor groove. Your original -S magnet worked with CS1-B/DS1-B switches, but the SAU uses current CMSG/DMSG/EMSG sensors. The SAU line also adds a SAUF valve-integrated option the SU lacked.
Airtac SU63-100 Standard Cylinder SU63X680S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X680S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X680S |
| Bore size | Ø63 mm |
| Stroke | 680 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 SAU63X680S 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 SAU63X680S 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 SU63X680S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | 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 SU63X680S Is Used
Long-Stroke Diverting
Actuates diverter arms on packaging lines, utilizing the 680mm stroke to reach across wider conveyor belts without requiring complex linkages.
Multi-Stage Ejection
Pushes finished parts out of large CNC machinery, using the 1559N push force at 0.5MPa to clear heavy metal components reliably.
Replacing the Airtac SU63-100 Standard Cylinder SU63X680S with the SAU63X680S
To replace this SU63X680S with the SAU63X680S, verify the 63mm bore, 680mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. At 0.5MPa, push is 1559N; if undersizing, a 50mm bore gives 982N, and an 80mm gives 2513N. For the 680mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder drifts without air; use an external rod lock or pilot-operated check valve for load holding. The SAUF variant offers a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU63X680S
- ✓ 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 SU63X680S FAQ
Yes, the SU63X680S is discontinued. The direct replacement is the SAU63X680S. It shares the identical 63mm bore, 680mm stroke, 3/8" port, output force, and SC-series mounting, but the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
At 0.5MPa it provides 1559N push and 1402N pull; at 0.7MPa push is 2182N; at 0.9MPa push is 2805N; and the theoretical maximum is 318kgf at 1.0MPa. Note that the air cushion only decelerates the piston; it does not hold the load, so an external rod lock is needed for vertical holding.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X680S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X680S replacement — usually within 7-8 hours.