This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X325, 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 SU63X325
The AirTAC Airtac SU63-100 Standard Cylinder SU63X325 is a double-acting profile-type standard cylinder with a Ø63mm bore and 325mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X325, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke325 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X325
- 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 SU63X325
The AirTAC SU63X325 is a discontinued double-acting profile-type cylinder with a 63mm bore and 325mm stroke. It delivers 1559N push force at 0.5MPa via a 3/8" port. AirTAC replaced this EOL unit with the SAU63X325, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches, and adds an optional SAUF built-in valve. Note that this specific SKU lacks a magnet and cannot support sensing.
Airtac SU63-100 Standard Cylinder SU63X325 Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X325 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X325 |
| Bore size | Ø63 mm |
| Stroke | 325 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 SAU63X325 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 SAU63X325 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 SU63X325
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×325 | 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 SU63X325 Is Used
Package Diversion
Pushes medium-weight cartons off a main conveyor line using the 1559N push force at 0.5 MPa, with the 325mm stroke clearing adjacent lanes.
Pallet Stopper Gate
Acts as a retractable stop for pallets entering a stretch wrapper, handling the impact while the external guide absorbs side loads.
Component Ejection
Ejects molded parts from a press bed, utilizing the adjustable 21mm cushions to decelerate the 325mm travel smoothly at cycle end.
Replacing the Airtac SU63-100 Standard Cylinder SU63X325 with the SAU63X325
To replace the discontinued SU63X325, order the SAU63X325. Confirm your 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) are compatible. Because this is a non-magnetized SKU, it cannot accept a sensor; if sensing is needed, specify an SAU63X325-S and migrate to CMSG/DMSG/EMSG switches. For sizing, the 63mm bore yields 1559N push at 0.5MPa; if less force is needed, step down to a 50mm bore (982N), or up to an 80mm bore (2513N) for heavier loads. With a 325mm stroke, use external guides to prevent rod bending and side-load damage. The air cushion only decelerates the piston; use an external rod lock or pilot-operated check valve to hold loads securely.
Replacement checklist
- ✓ Same bore / stroke → SAU63X325
- ✓ 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 SU63X325 FAQ
Yes, the SU63X325 is discontinued. The direct replacement is the AirTAC SAU63X325. It shares the same 63mm bore, 325mm stroke, 3/8" port, force output, and SC-series mounting, so it drops right into the same application.
At 0.5 MPa it pushes 1559N and pulls 1402N. At 0.7 MPa it pushes 2182N, and the theoretical max is 318 kgf at 1.0 MPa. This specific SKU has no magnet (-S) and cannot take a sensor. If you need sensing, order the SAU63X325-S, which uses current CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B.
Request a Quote for the SAU63X325
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X325 replacement — usually within 7-8 hours.