This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X120FA, 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 SU63X120FA
The AirTAC Airtac SU63-100 Standard Cylinder SU63X120FA is a double-acting profile-type standard cylinder with a Ø63mm bore and 120mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X120FA, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke120 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X120FA
- 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 SU63X120FA
The AirTAC SU63X120FA is a discontinued double-acting profile-type cylinder with a 63 mm bore and 120 mm stroke. It delivers 1559 N push force at 0.5 MPa via a 3/8" port. AirTAC replaced this unit with the SAU63X120FA, a direct alternative retaining the exact bore, stroke, force, port and SC-series FA mounting interface.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also drops the legacy CS1-B/DS1-B switches for modern CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in 4M solenoid valve option the SU line never had.
Airtac SU63-100 Standard Cylinder SU63X120FA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X120FA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X120FA |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAU63X120FA 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 SAU63X120FA 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 SU63X120FA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SU63X120FA Is Used
Clamping Fixtures
Secures mid-weight machined parts during milling or drilling, utilizing the 1559 N push force at 0.5 MPa for rigid holding.
Package Diverting
Actuates a 120 mm stroke diverting arm to push cartons off a main production line onto an auxiliary packing belt.
Pallet Stops
Deploys a 63 mm bore stopper gate to arrest pallets at a workstation, handling the impact with adjustable 21 mm air cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU63X120FA with the SAU63X120FA
To replace the SU63X120FA, order the SAU63X120FA. Confirm the 3/8" port, M16x1.5 rod thread, and the FA front mounting bracket. Since this specific SKU has no magnet (-S), it cannot support position sensing; if you need switches on the new SAU, you must select an -S version and use CMSG/DMSG/EMSG sensors. If you need to downsize, a 50 mm bore gives 982 N push at 0.5 MPa; if you need more force, an 80 mm bore yields 2513 N. Note that a plain cylinder drifts without live air—the cushions only decelerate—so use an external rod lock or pilot-operated check valve for load holding. The SAUF variant is available if you want an integrated valve.
Replacement checklist
- ✓ Same bore / stroke → SAU63X120FA
- ✓ 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 SU63X120FA FAQ
Yes, the SU63X120FA is discontinued. The direct replacement is the SAU63X120FA. It shares the identical 63 mm bore, 120 mm stroke, 1559 N output force, 3/8" port, and SC-series FA mounting accessories, so it fits the same application directly.
At 0.5 MPa it provides 1559 N push and 1402 N pull; 2182 N push at 0.7 MPa; 2805 N at 0.9 MPa; and a theoretical max of 318 kgf at 1.0 MPa. The air cushions only decelerate the piston near stroke end; without live air the cylinder drifts, so use an external rod lock or pilot-operated check valve to hold a load.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X120FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X120FA replacement — usually within 7-8 hours.