This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X55S, 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 SU63X55S
The AirTAC Airtac SU63-100 Standard Cylinder SU63X55S is a double-acting profile-type standard cylinder with a Ø63mm bore and 55mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X55S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke55 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X55S
- 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 SU63X55S
The AirTAC SU63X55S is a discontinued double-acting profile cylinder with a 63mm bore and 55mm stroke, delivering 1559N push force at 0.5MPa. The direct replacement is the SAU63X55S, matching the 3/8" port, M16x1.5 rod thread, and SC-series mounting.
This compact extruded barrel is shorter than same-bore ISO cylinders. The -S magnet used legacy CS1-B/DS1-B switches, but the SAU upgrade uses CMSG/DMSG/EMSG sensors and adds a SAUF valve option.
Airtac SU63-100 Standard Cylinder SU63X55S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X55S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X55S |
| Bore size | Ø63 mm |
| Stroke | 55 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 SAU63X55S 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 SAU63X55S 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 SU63X55S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | 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 SU63X55S Is Used
Mid-Tonnage Clamping
Secures heavy workpieces in CNC machining fixtures, utilizing the 1559N push force at 0.5MPa to hold parts rigidly against cutting forces.
Package Diverting
Actuates routing gates on high-speed packaging lines, where the 55mm stroke provides rapid, compact diversion without excessive overtravel.
Pallet Stopping
Controls heavy pallet flow on roller conveyors, safely decelerating loads using the adjustable 21mm air cushions at both ends of the cylinder.
Replacing the Airtac SU63-100 Standard Cylinder SU63X55S with the SAU63X55S
To replace this SU63X55S, order the SAU63X55S, confirming the 3/8" port, PT thread, and SC-series mounts. If downsizing, a 50mm bore yields 982N push; if upsizing, an 80mm bore yields 2513N at 0.5MPa. The -S magnet means you must switch from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. The 55mm stroke is short, so side-load risks are minimal, but note that a plain cylinder drifts on air loss—the cushion only decelerates, so add a rod lock for holding. Consider the SAUF variant for a built-in valve.
Replacement checklist
- ✓ Same bore / stroke → SAU63X55S
- ✓ 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 SU63X55S FAQ
Yes, the AirTAC SU63X55S is discontinued. The direct replacement is the SAU63X55S. It offers identical bore, stroke, force, 3/8" port, and SC-series mounting compatibility, meaning it fits the same application directly without mechanical changes.
The SAU63X55S provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a max theoretical force of 318kgf at 1.0MPa. Because the -S magnet on the legacy SU worked with CS1-B/DS1-B switches, you must upgrade to CMSG/DMSG/EMSG sensors for the SAU replacement.
Request a Quote for the SAU63X55S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X55S replacement — usually within 7-8 hours.