This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X20S, 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 SU80X20S
The AirTAC Airtac SU63-100 Standard Cylinder SU80X20S 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 SAU80X20S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X20S
- 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 SU80X20S
The AirTAC SU80X20S is a discontinued double-acting profile cylinder with a built-in magnet, delivering 2513 N of push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAU80X20S, a direct alternative retaining the exact 80 mm bore, 20 mm stroke, 3/8" port, and SC-series mounting footprint.
Because the original extruded aluminum body is shorter than an ISO 15552 cylinder of the same bore, it saves machine space. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked.
Airtac SU63-100 Standard Cylinder SU80X20S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X20S |
| 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 SAU80X20S 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 SAU80X20S 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 SU80X20S
| 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 SU80X20S Is Used
Short-Stroke Clamping
Ideal for high-force 2513 N clamping of heavy castings in CNC machining centers where a compact 20 mm stroke is required.
Package Diverting
Provides robust actuation for heavy-duty conveyor sorting gates, using the magnetic piston for position confirmation.
Pallet Stopping
Functions as a heavy-duty stopper in pallet handling lines, absorbing kinetic energy with its 28 mm adjustable air cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU80X20S with the SAU80X20S
To replace this SU80X20S, order the SAU80X20S and confirm the 3/8" port, M20x1.5 rod thread, and PT/G/NPT thread standard. Since this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires current CMSG/DMSG/EMSG sensors. If sizing alternatives, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore offers 3927 N. A plain cylinder drifts without live air—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. For high-temperature environments up to 150 C, select the Viton H seal option.
Replacement checklist
- ✓ Same bore / stroke → SAU80X20S
- ✓ 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 SU80X20S FAQ
Yes, the SU80X20S is discontinued. The direct replacement is the AirTAC SAU80X20S. It matches the 80 mm bore, 20 mm stroke, 3/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
The cylinder provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa. If your original SU80X20S used the -S magnet with legacy CS1-B/DS1-B switches, you must upgrade to CMSG/DMSG/EMSG sensors on the SAU replacement.
Request a Quote for the SAU80X20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X20S replacement — usually within 7-8 hours.