This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X400SFA, 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 SU100X400SFA
The AirTAC Airtac SU63-100 Standard Cylinder SU100X400SFA is a double-acting profile-type standard cylinder with a Ø100mm bore and 400mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X400SFA, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke400 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAU100X400SFA
- 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 SU100X400SFA
The AirTAC SU100X400SFA is a discontinued double-acting profile-type cylinder with a 100mm bore and 400mm stroke. Built with an extruded aluminum barrel and adjustable air cushions at both ends, it delivers a robust 3927 N push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAU100X400SFA, a direct alternative retaining the exact bore, stroke, 1/2" port, and SC-series FA mounting accessory.
Because the body, output, and dimensions are unchanged, the SAU fits your existing fixture perfectly. The upgrade path does change the sensor family: this legacy SU uses CS1-B/DS1-B switches, while the SAU takes current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU never offered.
Airtac SU63-100 Standard Cylinder SU100X400SFA Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU100X400SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X400SFA |
| Bore size | Ø100 mm |
| Stroke | 400 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 SAU100X400SFA carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X400SFA 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 SU100X400SFA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 SU100X400SFA Is Used
Heavy Press Clamping
Secures large metal castings during machining, utilizing the 3927 N push force at 0.5 MPa to hold parts rigidly against cutting forces.
Bulk Material Diversion
Actuates heavy routing gates on high-capacity lines, relying on the adjustable 29mm cushions to decelerate massive loads smoothly at stroke ends.
Replacing the Airtac SU63-100 Standard Cylinder SU100X400SFA with the SAU100X400SFA
To replace this discontinued SU100X400SFA, order the SAU100X400SFA. Verify your 1/2" port thread (PT, G, or NPT) and note that the FA mounting bracket is an SC-series accessory carried over directly. Since this SKU includes the -S magnet, you must upgrade your legacy CS1-B/DS1-B reed switches to the modern CMSG/DMSG/EMSG electronic family. The 100mm bore yields 3927 N push and 3681 N pull at 0.5 MPa; if you need less force, step down to an 80mm bore (2513 N push), or up to the max 801 kgf at 1.0 MPa for heavier demands. With the 400mm stroke, use external guides to prevent rod bending and side-load damage. This cylinder will not hold a load without live air—add an external rod lock or pilot-operated check valve for vertical safety.
Replacement checklist
- ✓ Same bore / stroke → SAU100X400SFA
- ✓ 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 SU100X400SFA FAQ
Yes, the SU100X400SFA is discontinued. The direct replacement is the SAU100X400SFA. It shares the same 100mm bore, 400mm stroke, 1/2" port, output force, and SC-series FA mounting, so it drops directly into your existing machine without mechanical modifications.
At 0.5 MPa it provides 3927 N push and 3681 N pull; at 0.7 MPa it pushes 5497 N, with a theoretical max of 801 kgf at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches must be replaced by CMSG/DMSG/EMSG sensors on the new SAU unit.
Related AirTAC SAU Cylinders
Request a Quote for the SAU100X400SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X400SFA replacement — usually within 7-8 hours.