This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X420SCA, 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 SU63X420SCA
The AirTAC SU63-100 Standard Cylinder SU63X420SCA 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 SAU63X420SCA, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke420 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X420SCA
- 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 SU63X420SCA
The AirTAC SU63X420SCA is a discontinued double-acting profile-type cylinder with a 63 mm bore and 420 mm stroke. Delivering 1559 N push force at 0.5 MPa via a 3/8" port, it is replaced direct by the SAU63X420SCA, which preserves the exact body, force, stroke and SC-series CA mounting.
The SAU upgrade swaps the legacy CS1-B/DS1-B switches for modern CMSG/DMSG/EMSG sensors and introduces the SAUF valve-integrated option. The 420 mm stroke requires external guides to prevent rod bending under side loads.
Airtac SU63-100 Standard Cylinder SU63X420SCA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X420SCA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X420SCA |
| 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 SAU63X420SCA 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 SAU63X420SCA 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 SU63X420SCA
| 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 SU63X420SCA Is Used
Pallet Diversion
Pushes heavy pallets sideways off a main conveyor line using 1559 N of thrust at 0.5 MPa, with the 420 mm stroke clearing wide transfer beds.
Vertical Lift Gate
Raises a 79 kg material gate through 420 mm; requires a pilot-operated check valve since the standard air cushions only decelerate at stroke end.
Press Ejection
Ejects dense machined components from a fixture, utilizing the CA clevis mount to pivot smoothly while handling the 2805 N output at 0.9 MPa.
Replacing the Airtac SU63-100 Standard Cylinder SU63X420SCA with the SAU63X420SCA
To replace this discontinued SU63X420SCA, order the SAU63X420SCA, confirming the 63 mm bore, 420 mm stroke, 3/8" port, M16x1.5 rod thread and CA mounting. Because the -S magnet is present, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For sizing, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore provides 2513 N. The 420 mm stroke demands external guides to absorb side loads and prevent rod bending. This plain cylinder will not hold a load without live air—the 21 mm cushions only decelerate—so add an external rod lock or pilot-operated check valve for vertical holding. If self-switching is needed, consider the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU63X420SCA
- ✓ 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 SU63X420SCA FAQ
Yes, the AirTAC SU63X420SCA is discontinued. The direct replacement is the SAU63X420SCA, which maintains the identical 63 mm bore, 420 mm stroke, 3/8" port, output force, and SC-series CA mounting accessories.
The 63 mm bore provides 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. Because this SKU includes the -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X420SCA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X420SCA replacement — usually within 7-8 hours.