This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X395, 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 SU63X395 is a double-acting profile-type standard cylinder with a Ø63mm bore and 395mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X395, which matches its bore, stroke, force and mounting.
The AirTAC SU63X395 is a discontinued double-acting profile-type cylinder with a 63 mm bore and 395 mm stroke. Delivering 1559 N push force at 0.5 MPa, it features an extruded aluminum barrel and 3/8" port. AirTAC replaced this EOL unit with the SAU63X395, a direct alternative matching the bore, stroke, output force, and SC-series mounting.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors and a SAUF built-in valve option the SU lacked. This no-magnet SKU cannot accept a switch. The 395 mm stroke requires external guides to prevent rod bending under side loads.
| Model | Airtac SU63-100 Standard Cylinder SU63X395 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X395 |
| Bore size | Ø63 mm |
| Stroke | 395 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 SAU63X395 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X395 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). |
|---|---|
| 63 | Bore size in mm. |
| ×395 | 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.
Ejects molded parts from a press using 2182 N at 0.7 MPa, relying on adjustable end cushions to decelerate the 63 mm piston smoothly.
To replace the SU63X395, order the SAU63X395 direct equivalent, verifying the 3/8" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your existing fixture. Because this 395 mm stroke exceeds 300 mm, use external guides to prevent rod bending and premature seal wear from side loads. For higher force needs, the neighboring 80 mm bore yields 2513 N push at 0.5 MPa; for lighter loads, the 50 mm bore offers 982 N. This SKU lacks a magnet (-S) and cannot support sensing; if position detection is needed, specify an SAU63X395S and upgrade to CMSG/DMSG/EMSG switches (the SU used legacy CS1-B/DS1-B). Note that a standard 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 adds a built-in 4M solenoid valve if integrated switching is desired.
Replacement checklist
Yes, the SU63X395 is discontinued. The direct replacement is the AirTAC SAU63X395. It shares the identical 63 mm bore, 395 mm stroke, 3/8" port, output force, and SC-series mounting, so it fits the same application without modifications.
The 63 mm bore generates 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and a theoretical max of 318 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept sensors; the SAU-S variant uses CMSG/DMSG/EMSG switches, replacing the legacy CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X395 replacement — usually within 7-8 hours.