This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X620S, 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 SU63X620S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X620S is a double-acting profile-type standard cylinder with a Ø63mm bore and 620mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X620S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke620 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X620S
- 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 SU63X620S
The AirTAC SU63X620S is a discontinued double-acting profile-type cylinder with a 63mm bore and 620mm stroke. Built with an extruded aluminum barrel, it delivers 1559N push and 1402N pull at 0.5MPa via a 3/8" port. AirTAC replaced this end-of-line unit with the SAU63X620S, a direct alternative matching the exact bore, stroke, force, port, and SC-series mounting.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; the SAU replacement upgrades to current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve the SU line lacked.
Airtac SU63-100 Standard Cylinder SU63X620S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X620S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X620S |
| Bore size | Ø63 mm |
| Stroke | 620 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 SAU63X620S 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 SAU63X620S 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 SU63X620S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×620 | 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 SU63X620S Is Used
Long-Stroke Material Diversion
Pushes heavy pallets or workpieces across a 620mm gap on a production line using 1559N of thrust at 0.5MPa, requiring external guides to prevent rod bending.
Multi-Station Indexing
Shifts tooling carriages between machining stations, leveraging the compact profile body and adjustable 21mm air cushions at both ends for smooth end-of-stroke deceleration.
Replacing the Airtac SU63-100 Standard Cylinder SU63X620S with the SAU63X620S
To replace this SU63X620S, order the SAU63X620S. Confirm the 63mm bore, 620mm stroke, 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your existing fixture. Because this has a -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For sizing both ways, a neighboring 50mm bore yields 982N push at 0.5MPa, while an 80mm bore yields 2513N. A plain cylinder does not hold load without live air—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for vertical holding. At 620mm, this long stroke requires an external guide to prevent rod bending and side-load damage. If self-switching is needed, explore the SAUF valve-integrated option.
Replacement checklist
- ✓ Same bore / stroke → SAU63X620S
- ✓ 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 SU63X620S FAQ
Yes, the SU63X620S is discontinued. The direct replacement is the SAU63X620S. It shares the identical 63mm bore, 620mm stroke, 3/8" port, output force, and SC-series mounting, but the -S magnet now requires CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 3/8" port bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa. The piston rod is 20mm, and speed ranges from 30-800mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X620S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X620S replacement — usually within 7-8 hours.