This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X300S, 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 SU63X300S
The AirTAC SU63-100 Standard Cylinder SU63X300S is a double-acting profile-type standard cylinder with a Ø63mm bore and 300mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X300S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke300 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X300S
- 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 SU63X300S
The AirTAC SU63X300S is a discontinued double-acting profile-type cylinder with a 63mm bore and 300mm stroke. Delivering 1559 N push force at 0.5 MPa, it uses an extruded aluminum barrel that is more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this end-of-life unit with the SAU63X300S, a direct replacement retaining the exact 3/8" port, M16x1.5 rod thread, output force, and SC-series mounting.
Because this SKU includes a magnet (-S), it originally used legacy CS1-B/DS1-B switches; the SAU replacement upgrades these to current CMSG/DMSG/EMSG sensors. 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 SU63X300S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X300S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X300S |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAU63X300S 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 SAU63X300S 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 SU63X300S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 SU63X300S Is Used
Package Diverting
Actuates routing gates on high-speed sorting lines, using the 1559 N thrust to push parcels firmly into correct lanes.
Pallet Positioning
Indexes heavy pallets into wrapping stations, where the 300mm stroke provides ample reach for alignment tasks.
Clamp Actuation
Drives mid-force clamping fixtures on machining cells, holding workpieces securely during secondary milling operations.
Replacing the Airtac SU63-100 Standard Cylinder SU63X300S with the SAU63X300S
To replace this discontinued SU63X300S, order the SAU63X300S, confirming the 63mm bore, 300mm stroke, 3/8" port, and PT/G/NPT thread choice. Reuse your existing AirTAC SC-series mounting brackets (LB/FA/FB/CA/CB). If downsizing, a 50mm bore yields 982 N push at 0.5 MPa; if upsizing, an 80mm bore provides 2513 N. Because this is a 300mm stroke, prevent rod bending by guiding the load externally to avoid side loads. Note the -S magnet change: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU. The air cushion only decelerates the piston; it does not hold the load on air loss, so add an external rod lock or pilot-operated check valve if drift is unacceptable.
Replacement checklist
- ✓ Same bore / stroke → SAU63X300S
- ✓ 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 SU63X300S FAQ
Yes, the SU63X300S is discontinued. The direct replacement is the AirTAC SAU63X300S. It shares the same 63mm bore, 300mm stroke, 1559 N output force at 0.5 MPa, 3/8" port, and SC-series mounting accessories, fitting the same application directly.
At 0.5 MPa it provides 1559 N push and 1402 N pull force, rising to 2182 N push at 0.7 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X300S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X300S replacement — usually within 7-8 hours.