This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X300STC, 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 SU63X300STC
The AirTAC SU63-100 Standard Cylinder SU63X300STC 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 SAU63X300STC, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke300 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X300STC
- 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 SU63X300STC
The AirTAC SU63X300STC is a discontinued double-acting profile-type cylinder with a 63 mm bore and 300 mm stroke. It delivers 1559 N push force at 0.5 MPa through a 3/8" port. AirTAC replaced this legacy unit with the SAU63X300STC, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series TC mounting interface.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace the older CS1-B/DS1-B switches used on this -S SKU, and adds an optional SAUF built-in 4M solenoid valve. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU63-100 Standard Cylinder SU63X300STC Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X300STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X300STC |
| 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 SAU63X300STC 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 SAU63X300STC 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 SU63X300STC
| 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 SU63X300STC Is Used
Pallet Diversion
Pushes heavy pallets sideways off a main conveyor line using 1559 N of thrust at 0.5 MPa, with the 300 mm stroke clearing adjacent guide rails.
Component Ejection
Ejects molded parts from a press using the TC mount for secure centerline trunnion support, absorbing end-of-stroke impact via 21 mm cushions.
Replacing the Airtac SU63-100 Standard Cylinder SU63X300STC with the SAU63X300STC
To replace this discontinued SU63X300STC, order the SAU63X300STC ensuring your 3/8" port, M16x1.5 rod thread, and TC mounting match. Because this SKU includes a magnet (-S), note the sensor family changes from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches on the SAU. If you need higher force, the 80 mm bore offers 2513 N push at 0.5 MPa; if less is required, the 50 mm bore provides 982 N. At 300 mm stroke, use an external guide to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for load holding. The SAUF variant offers a built-in valve if self-switching is needed.
Replacement checklist
- ✓ Same bore / stroke → SAU63X300STC
- ✓ 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 SU63X300STC FAQ
Yes, the SU63X300STC is discontinued. The direct replacement is the AirTAC SAU63X300STC. It matches the 63 mm bore, 300 mm stroke, 1559 N force, 3/8" port, and SC-series TC mounting. You simply order the SAU equivalent.
At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N, and the theoretical maximum is 318 kgf at 1.0 MPa. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement upgrades these to current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X300STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X300STC replacement — usually within 7-8 hours.