This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X225STC, 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.

The AirTAC SU63-100 Standard Cylinder SU100X225STC is a double-acting profile-type standard cylinder with a Ø100mm bore and 225mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X225STC, which matches its bore, stroke, force and mounting.
The AirTAC SU100X225STC is a discontinued double-acting profile-type cylinder with a 100mm bore and a non-standard 225mm stroke. As a legacy unit, it delivers a robust 3927 N push force at 0.5 MPa. The direct replacement is the SAU100X225STC, which preserves the exact body profile, 1/2" port, M20x1.5 rod thread, and TC mounting interface, ensuring a seamless retrofit without machining changes.
When upgrading, note that the SAU replacement transitions to current CMSG/DMSG/EMSG sensors, retiring the older CS1-B/DS1-B switches used on this SU -S model. The SAU line also introduces a SAUF variant featuring a built-in 4M solenoid valve that the SU series never offered. Remember that standard pneumatic cushions only decelerate the load; an external rod lock or pilot-operated check valve is required to hold a load securely.
| Model | Airtac SU63-100 Standard Cylinder SU100X225STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X225STC |
| Bore size | Ø100 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X225STC carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X225STC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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.
Drives large press dies and metalforming tools where the 3927 N push force at 0.5 MPa is required to deform thick stock materials.
Actuates heavy conveyor diverter gates and pallet stops, utilizing the 200 kg vertical lift capacity to manage loaded material flow.
Applies consistent downward clamping pressure for bearing insertion and component seating on high-capacity automated lines.
To replace the discontinued SU100X225STC, order the SAU100X225STC direct equivalent, verifying the 100mm bore, 225mm non-standard stroke, 1/2" port, and TC mounting accessory during checkout. If your application demands a different force, neighboring bores offer alternatives: the 80mm bore provides 2513 N push at 0.5 MPa, while the 100mm bore reaches 5497 N at 0.7 MPa. Because this 225mm stroke exceeds standard catalog increments, confirm lead times and ensure your guiding mechanism handles side loads to prevent rod bending. For applications needing integrated directional control, explore the SAUF valve-cylinder variant. Finally, if the cylinder must maintain position during air loss, do not rely on the adjustable air cushions; install an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the AirTAC SU100X225STC is discontinued and end-of-life. The direct replacement is the SAU100X225STC. It shares the same 100mm bore, 225mm stroke, 1/2" port, output force, and TC mounting, so it fits the same application directly.
The 100mm bore generates 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa. Because this is an -S magnet model, it originally used legacy CS1-B/DS1-B switches; the SAU replacement requires the modern CMSG/DMSG/EMSG sensor family.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X225STC replacement — usually within 7-8 hours.