This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU80X420S, 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 SU80X420S
The AirTAC SU63-100 Standard Cylinder SU80X420S is a double-acting profile-type standard cylinder with a Ø80mm bore and 420mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU80X420S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke420 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU80X420S
- 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 SU80X420S
The AirTAC SU80X420S is a discontinued double-acting profile cylinder with an 80mm bore and 420mm stroke. AirTAC replaced this end-of-life unit with the SAU80X420S, a direct alternative retaining the exact 3/8 inch port, M20x1.5 rod thread, and SC-series mounting footprint.
The extruded aluminum profile body is more compact than an ISO 15552 cylinder of the same bore. Because this SKU includes a magnet (-S), it originally used legacy CS1-B or DS1-B switches; the SAU replacement transitions to current CMSG, DMSG, or EMSG sensors. Furthermore, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve, an integrated self-switching option the SU series never offered.
Airtac SU63-100 Standard Cylinder SU80X420S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU80X420S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU80X420S |
| Bore size | Ø80 mm |
| Stroke | 420 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 SAU80X420S 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 SAU80X420S 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 SU80X420S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×420 | 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 SU80X420S Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, utilizing the 2513N push force at 0.5MPa to shift loaded pallets laterally without hesitation.
Vertical Lift Gate
Raises and lowers security or climate gates, where the 420mm stroke provides the necessary travel and the 128kg vertical lift capacity handles solid steel panels.
Press Ejection
Ejects formed metal components from stamping presses, relying on adjustable 28mm end cushions to decelerate the 25mm rod smoothly under high kinetic loads.
Replacing the Airtac SU63-100 Standard Cylinder SU80X420S with the SAU80X420S
To replace the discontinued SU80X420S, order the SAU80X420S direct equivalent, verifying your 3/8 inch port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC). If your machine relied on the -S magnet for positioning, note that your legacy CS1-B/DS1-B switches must be upgraded to CMSG, DMSG, or EMSG sensors on the new SAU body. For sizing alternatives, dropping to a 63mm bore reduces the 0.5MPa push force to 1559N, while stepping up to a 100mm bore increases it to 3927N. Since this is a 420mm stroke, external guides are strongly recommended to prevent rod bending and premature seal wear under side loads. A plain cylinder drifts without live air and its cushions only decelerate, so integrate an external rod lock or pilot-operated check valve if the load must be held safely mid-stroke.
Replacement checklist
- ✓ Same bore / stroke → SAU80X420S
- ✓ 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 SU80X420S FAQ
Yes, the AirTAC SU80X420S is discontinued and end-of-life. The direct replacement is the SAU80X420S. It shares the identical 80mm bore, 420mm stroke, 3/8 inch port, output force, and SC-series mounting accessories, allowing a direct physical swap.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a maximum theoretical force of 513kgf at 1.0MPa. Because this is the -S magnet version, it originally used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG, DMSG, or EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU80X420S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU80X420S replacement — usually within 7-8 hours.