This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X435S, 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 SU63X435S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X435S is a double-acting profile-type standard cylinder with a Ø63mm bore and 435mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X435S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke435 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X435S
- 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 SU63X435S
The AirTAC SU63X435S is a discontinued double-acting profile-type cylinder featuring a 63 mm bore and 435 mm stroke. Delivering 1559 N of push force at 0.5 MPa (318 kgf maximum at 1.0 MPa), it utilizes a 3/8" port and M16x1.5 rod thread. AirTAC ended this series, making the SAU63X435S the direct replacement—retaining the identical bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this is a 435 mm stroke, external guides should be used to prevent rod bending under side loads. The -S magnet on this legacy unit functioned with CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. Additionally, the SAU line introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU63-100 Standard Cylinder SU63X435S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X435S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X435S |
| Bore size | Ø63 mm |
| Stroke | 435 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 SAU63X435S 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 SAU63X435S 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 SU63X435S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×435 | 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 SU63X435S Is Used
Mid-Stroke Material Diversion
Uses the 435 mm extension to push heavy cartons between parallel conveyor lines, relying on the 1559 N push force at 0.5 MPa to handle 79 kg vertical loads safely.
Automated Press Ejection
Ejects formed metal parts from a press bed, utilizing the 63 mm bore's 318 kgf maximum output to overcome die friction and clear the tooling.
Pallet Stopper Assembly
Acts as a pneumatic stop gate on a roller conveyor for pallet accumulation, requiring external guides to absorb pallet impact over the 435 mm stroke.
Replacing the Airtac SU63-100 Standard Cylinder SU63X435S with the SAU63X435S
To replace the SU63X435S, order the SAU63X435S direct equivalent, verifying your 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC). Because this SKU includes the -S magnet, you must account for a sensor family change: the legacy CS1-B/DS1-B switches are retired, requiring current CMSG/DMSG/EMSG sensors on the SAU. If your application needs self-switching, the SAU family offers the SAUF variant with an integrated 4M valve. For sizing alternatives, dropping to a 50 mm bore yields 982 N push at 0.5 MPa, while stepping up to an 80 mm bore provides 2513 N. Note that a plain cylinder does not hold load without live air—the cushion only decelerates—so use an external rod lock for vertical holding. Finally, at 435 mm, this long stroke demands external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU63X435S
- ✓ 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 SU63X435S FAQ
Yes, the SU63X435S is discontinued. The direct replacement is the AirTAC SAU63X435S. It matches the 63 mm bore, 435 mm stroke, 3/8" port, and SC-series mounting. The only change for buyers is the sensor family: the -S magnet on this legacy model used CS1-B/DS1-B switches, while the SAU replacement requires CMSG/DMSG/EMSG sensors.
This double-acting cylinder uses a 3/8" port and M16x1.5 rod thread. Force output is 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. The cushion stroke is 21 mm at both ends, and operating speed ranges from 30-800 mm/s.
Related AirTAC SAU Cylinders
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