This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X20FA, 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 SU80X20FA
The AirTAC Airtac SU63-100 Standard Cylinder SU80X20FA is a double-acting profile-type standard cylinder with a Ø80mm bore and 20mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X20FA, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X20FA
- 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 SU80X20FA
The AirTAC SU80X20FA is a discontinued double-acting profile-type cylinder with an 80mm bore and 20mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, using a 25mm rod and 3/8" port. AirTAC replaced this EOL unit with the SAU80X20FA, a direct sharing the exact bore, stroke, force, port and FA mounting interface.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade keeps the compact extruded body shorter than an ISO 15552 equivalent, but if you need position detection, the newer SAU family uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Airtac SU63-100 Standard Cylinder SU80X20FA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X20FA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X20FA |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAU80X20FA 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 SAU80X20FA 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 SU80X20FA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SU80X20FA Is Used
Short-Stroke Clamping
Ideal for high-force 2513N clamping of heavy steel plates in machining fixtures, utilizing the 20mm stroke for rapid, secure holds.
Part Ejection
Provides robust 80mm bore ejection force to push finished parts out of presses, relying on the compact profile to fit tight machine envelopes.
Spot Pressing
Delivers reliable downward thrust for pressing bearings or pins, safely handling a 1508N working load without exceeding structural limits.
Replacing the Airtac SU63-100 Standard Cylinder SU80X20FA with the SAU80X20FA
To replace the SU80X20FA, order the SAU80X20FA. Verify your 3/8" port thread (PT, G or NPT) and confirm the SC-series FA foot mount is reused. Since this is a non-magnet SKU, it cannot take a switch; if sensing is needed, the SAU equivalent requires CMSG/DMSG/EMSG sensors. Downsize to a 63mm bore if 1559N push suffices, or upsize to 100mm for 3927N. The SAUF variant adds a built-in valve the SU lacked. Note: air cushions only decelerate; use an external rod lock or pilot check valve to hold loads.
Replacement checklist
- ✓ Same bore / stroke → SAU80X20FA
- ✓ 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 SU80X20FA FAQ
Yes, the SU80X20FA is discontinued. The direct replacement is the AirTAC SAU80X20FA. It matches the 80mm bore, 20mm stroke, 2513N force, 3/8" port and FA foot mount, so it fits the same application directly.
At 0.5MPa it pushes 2513N and pulls 2268N; at 0.7MPa push is 3518N, with a theoretical max of 513kgf at 1.0MPa. The cushions only decelerate; without live air the piston drifts, so use an external rod lock or pilot-operated check valve to hold a load.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X20FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X20FA replacement — usually within 7-8 hours.