This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X400S, 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 SU63X400S
The AirTAC SU63-100 Standard Cylinder SU63X400S is a double-acting profile-type standard cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X400S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X400S
- 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 SU63X400S
The AirTAC SU63X400S is a discontinued double-acting profile-type cylinder with a 63mm bore and 400mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, operating at 30-800mm/s with a 3/8" port and M16x1.5 rod thread. AirTAC replaced this end-of-line unit with the SAU63X400S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because the -S suffix denotes a magnet, this legacy unit used CS1-B/DS1-B switches, whereas the SAU successor requires current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, a feature the SU line lacked.
Airtac SU63-100 Standard Cylinder SU63X400S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X400S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X400S |
| Bore size | Ø63 mm |
| Stroke | 400 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 SAU63X400S 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 SAU63X400S 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 SU63X400S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SU63X400S Is Used
Vertical Pressing
Applies up to 2182N at 0.7MPa for seating components, requiring an external guide to prevent rod bending over the long stroke.
Replacing the Airtac SU63-100 Standard Cylinder SU63X400S with the SAU63X400S
To replace the discontinued SU63X400S, order the SAU63X400S direct equivalent, verifying the 3/8" port, M16x1.5 thread, and PT/G/NPT thread standard. If downsizing, a 50mm bore yields 982N push at 0.5MPa; if upsizing, an 80mm bore provides 2513N. The -S magnet means you must upgrade from legacy CS1-B/DS1-B switches to modern CMSG/DMSG/EMSG sensors. Note that a plain cylinder drifts without live air, as the cushion only decelerates; use an external rod lock or pilot-operated check valve for load holding. At 400mm stroke, prevent rod bending by using an external guide to absorb side loads. The SAUF built-in-valve option is available if self-switching is desired.
Replacement checklist
- ✓ Same bore / stroke → SAU63X400S
- ✓ 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 SU63X400S FAQ
Yes, the SU63X400S is discontinued. The direct replacement is the AirTAC SAU63X400S. It shares the identical 63mm bore, 400mm stroke, output force, 3/8" port, and SC-series mounting, so it fits the same application directly.
The bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X400S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X400S replacement — usually within 7-8 hours.