This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X420S, 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 SU63X420S
The AirTAC SU63-100 Standard Cylinder SU63X420S is a double-acting profile-type standard cylinder with a Ø63mm bore and 420mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X420S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke420 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X420S
- 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 SU63X420S
The AirTAC SU63X420S is a discontinued double-acting profile-type cylinder with a 63mm bore and 420mm stroke. Delivering 1559N push force at 0.5MPa, its extruded aluminum body is more compact than an ISO 15552 unit of the same bore. AirTAC replaced it with the SAU63X420S, a direct upgrade retaining the exact 3/8" port, M16x1.5 rod thread, output force, and SC-series mounting.
This -S SKU includes a piston magnet for legacy CS1-B/DS1-B switches, but the SAU replacement upgrades you to current CMSG/DMSG/EMSG sensors. The SAU line also introduces the SAUF built-in 4M solenoid valve option, which the SU series lacked.
Airtac SU63-100 Standard Cylinder SU63X420S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X420S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X420S |
| Bore size | Ø63 mm |
| Stroke | 420 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 SAU63X420S 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 SAU63X420S 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 SU63X420S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | 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 SU63X420S Is Used
Pallet Diversion
Pushes heavy pallets sideways at 0.5MPa using 1559N of thrust, with the 420mm stroke clearing wide conveyor frames.
Press Ejection
Ejects formed metal parts from a press bed, utilizing the adjustable 21mm cushions to decelerate the rod gently at stroke end.
Replacing the Airtac SU63-100 Standard Cylinder SU63X420S with the SAU63X420S
To replace this discontinued SU63X420S, order the SAU63X420S direct equivalent, confirming the 63mm bore, 420mm stroke, 3/8" port, and SC-series mounting accessories. Because this -S model has a magnet, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. When sizing, the 63mm bore yields 1559N push and 1402N pull at 0.5MPa; if you need less force, a 50mm bore provides 982N push, while an 80mm bore offers 2513N. A plain cylinder does not hold load without live air—the cushions only decelerate—so add an external rod lock or pilot-operated check valve for suspended loads. Finally, at 420mm stroke, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU63X420S
- ✓ 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 SU63X420S FAQ
Yes, the SU63X420S is discontinued. The direct replacement is the AirTAC SAU63X420S. It shares the same 63mm bore, 420mm stroke, 3/8" port, output force, and SC-series mounting, so it fits your existing application directly.
At 0.5MPa it provides 1559N push and 1402N pull, increasing to 2182N push at 0.7MPa, with a theoretical max of 318kgf at 1.0MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X420S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X420S replacement — usually within 7-8 hours.