This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X40CA, 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 SU63X40CA
The AirTAC Airtac SU63-100 Standard Cylinder SU63X40CA is a double-acting profile-type standard cylinder with a Ø63mm bore and 40mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X40CA, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke40 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X40CA
- 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 SU63X40CA
The AirTAC SU63X40CA is a discontinued double-acting profile-type cylinder with a 63mm bore and 40mm stroke, delivering 1559N push force at 0.5MPa via a 3/8" port. AirTAC replaced it with the SAU63X40CA, a direct upgrade retaining the exact bore, stroke, output force, port size, M16x1.5 rod thread and SC-series CA mounting. You simply order the SAU equivalent.
Because this is a compact extruded-aluminium profile body, it is shorter than an ISO 15552 cylinder of the same bore. Note this specific SKU lacks a magnet (-S), so it cannot accept a sensor. Furthermore, a plain cylinder will not hold a load without live air—the cushion only decelerates—so use an external rod lock for suspended loads.
Airtac SU63-100 Standard Cylinder SU63X40CA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X40CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X40CA |
| Bore size | Ø63 mm |
| Stroke | 40 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 SAU63X40CA 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 SAU63X40CA 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 SU63X40CA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 SU63X40CA Is Used
Clamping Fixtures
Provides 1559N of secure clamping force at 0.5MPa for holding heavy machined components during milling or drilling operations.
Package Diverters
Short 40mm stroke actuates diverter arms on high-throughput packaging lines, quickly routing heavy cartons off the main belt.
Pallet Stops
Robust CA mount and 63mm bore deliver reliable stopping power for loaded pallets accumulating at conveyor transfer points.
Replacing the Airtac SU63-100 Standard Cylinder SU63X40CA with the SAU63X40CA
To replace the discontinued SU63X40CA, order the SAU63X40CA direct upgrade, verifying your 3/8" port, PT/G/NPT thread choice, and CA mounting accessory. If you need position sensing, this no-magnet SKU cannot support it; the SAU -S variant is required, which upgrades the sensor family from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. Sizing both ways: the 63mm bore gives 1559N push at 0.5MPa (safe load ~935N), while the neighbouring 50mm bore offers 982N and the 80mm provides 2513N. For load holding on air loss, add a pilot-operated check valve or rod lock, as the cushion only decelerates. The SAUF variant adds a built-in 4M solenoid valve the SU lacked. At 40mm stroke, side-load rod-bending risk is minimal, but always guide the load.
Replacement checklist
- ✓ Same bore / stroke → SAU63X40CA
- ✓ 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 SU63X40CA FAQ
Yes, the SU63X40CA is discontinued. The direct replacement is the AirTAC SAU63X40CA. It shares the identical 63mm bore, 40mm stroke, 1559N force, 3/8" port, and SC-series CA mounting, so it drops right into the same application.
The 63mm bore delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a maximum theoretical force of 318kgf at 1.0MPa. This specific SKU has no magnet (-S), so it cannot accept a sensor; if sensing is needed, order the SAU -S variant, which uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X40CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X40CA replacement — usually within 7-8 hours.