This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X250, 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 SU63X250
The AirTAC Airtac SU63-100 Standard Cylinder SU63X250 is a double-acting profile-type standard cylinder with a Ø63mm bore and 250mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X250, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke250 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X250
- 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 SU63X250
The AirTAC SU63X250 is a discontinued double-acting profile cylinder with a 63 mm bore and 250 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port, making it a robust mid-range actuator. AirTAC replaced this end-of-line unit with the SAU63X250, a direct upgrade retaining the exact same extruded body dimensions, output force, and SC-series mounting compatibility.
The SAU replacement modernizes sensing by adopting CMSG/DMSG/EMSG switches, whereas this legacy SU lacked a magnet and cannot accept any sensor. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
Airtac SU63-100 Standard Cylinder SU63X250 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X250 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X250 |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAU63X250 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 SAU63X250 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 SU63X250
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SU63X250 Is Used
Package Diverting
Actuates diverter arms on packaging lines, using the 250 mm stroke to push cartons cleanly between adjacent conveyor belts without overshooting.
Pallet Stopping
Serves as a robust pneumatic stop gate for medium-weight pallets, leveraging the 1559 N push force at 0.5 MPa to halt inbound loads securely.
Clamp Actuation
Drives mid-sized clamping fixtures on machining centers, providing consistent holding pressure while fitting into compact machinery footprints.
Replacing the Airtac SU63-100 Standard Cylinder SU63X250 with the SAU63X250
To replace this discontinued SU63X250, order the SAU63X250. Verify your 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) remain compatible, as these are unchanged. Because this specific SKU has no magnet (-S), it cannot support sensing; if position detection is needed, the SAU upgrade requires the current CMSG/DMSG/EMSG switch family. Sizing both ways: a 50 mm bore provides 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. For loads needing 1559 N, this 63 mm bore is ideal. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. At 250 mm stroke, guide the load to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same bore / stroke → SAU63X250
- ✓ 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 SU63X250 FAQ
Yes, the SU63X250 is discontinued. The direct replacement is the AirTAC SAU63X250. It matches the 63 mm bore, 250 mm stroke, 3/8" port, and SC-series mounting, fitting the same application footprint seamlessly.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. Push force is 2182 N at 0.7 MPa and 2805 N at 0.9 MPa, with a theoretical max of 318 kgf at 1.0 MPa. This specific SKU lacks a magnet, so it cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU63X250
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X250 replacement — usually within 7-8 hours.