This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X120S, 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 SU63X120S
The AirTAC SU63-100 Standard Cylinder SU63X120S 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 SAU63X120S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke120 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X120S
- 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 SU63X120S
The AirTAC SU63X120S is a discontinued double-acting profile-type cylinder featuring a 63mm bore and 120mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it delivers 1559N of push force at 0.5MPa via a 3/8" port. AirTAC replaced this legacy unit with the SAU63X120S, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
When upgrading to the SAU63X120S, the physical envelope and 20mm piston rod remain identical, but the sensor family changes. This SU -S model used legacy CS1-B/DS1-B switches, whereas the SAU utilizes current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU63-100 Standard Cylinder SU63X120S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X120S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X120S |
| 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 SAU63X120S 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 SAU63X120S 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 SU63X120S
| 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 SU63X120S Is Used
Package Diverting
Actuates routing gates on 24V sorting lines, using the 120mm stroke to redirect parcels weighing up to 79kg safely.
Clamp Actuation
Secures heavy steel workpieces during CNC machining, delivering 1559N of clamping force at 0.5MPa operating pressure.
Pallet Stopper
Deploys as a pneumatic stop on roller conveyors to halt incoming pallets, absorbing kinetic energy via its adjustable cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU63X120S with the SAU63X120S
To replace the discontinued SU63X120S, order the SAU63X120S direct equivalent, verifying your 3/8" port threads (PT, G, or NPT) and SC-series mounting brackets (LB, FA, FB, CA, CB, or TC). Because this SKU includes the -S magnet, you must account for the sensor family change: the legacy CS1-B/DS1-B switches are incompatible with the SAU groove, requiring an upgrade to CMSG/DMSG/EMSG sensors. For force verification, the 63mm bore yields 1559N push and 1402N pull at 0.5MPa; if undersizing, a 50mm bore provides 982N, and if oversizing, an 80mm bore yields 2513N. Note that a standard cylinder drifts without live air—the cushions only decelerate the piston—so install an external rod lock or pilot-operated check valve for secure load holding. If your application needs self-switching logic, consider the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU63X120S
- ✓ 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 SU63X120S FAQ
Yes, the AirTAC SU63X120S is discontinued and end-of-life. The direct replacement is the SAU63X120S. It shares the identical 63mm bore, 120mm stroke, 3/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
At 0.5MPa it provides 1559N push and 1402N pull force, rising to 2182N at 0.7MPa, with a theoretical maximum of 318kgf at 1.0MPa. Because this is an -S magnet model, note that the legacy CS1-B/DS1-B switches are retired; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X120S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X120S replacement — usually within 7-8 hours.