This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X625S, 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 SU63X625S
The AirTAC SU63-100 Standard Cylinder SU63X625S is a double-acting profile-type standard cylinder with a Ø63mm bore and 625mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X625S, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke625 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X625S
- 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 SU63X625S
The AirTAC SU63X625S is a discontinued double-acting profile-type cylinder with a 63mm bore and 625mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa, operating through a 3/8" port with a 20mm piston rod. AirTAC replaced this EOL unit with the SAU63X625S, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
The SAU replacement modernizes the sensor groove, moving from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family, and introduces the SAUF built-in 4M valve option the SU line lacked. The extruded aluminum body is shorter than an ISO 15552 cylinder of the same bore.
Airtac SU63-100 Standard Cylinder SU63X625S Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X625S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X625S |
| Bore size | Ø63 mm |
| Stroke | 625 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 SAU63X625S 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 SAU63X625S 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 SU63X625S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×625 | 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 SU63X625S Is Used
Pallet Diversion
Routes heavy pallets on a packaging line using the 1559 N push force at 0.5 MPa, with the 625mm stroke providing full lateral travel across the belt width.
Component Ejection
Pushes molded parts out of a press area, where the adjustable 21mm air cushions decelerate the 20mm rod smoothly at the end of the 625mm extension.
Replacing the Airtac SU63-100 Standard Cylinder SU63X625S with the SAU63X625S
To replace this discontinued SU63X625S, order the SAU63X625S direct equivalent, verifying your 3/8" port, M16x1.5 rod thread, and SC-series mounting hardware (LB/FA/FB/CA/CB). Because this SKU includes the -S magnet, note that your old CS1-B/DS1-B switches must be upgraded to CMSG/DMSG/EMSG sensors. If your application needs integrated flow control, explore the SAUF variant with its built-in valve. For loads requiring 2805 N push at 0.9 MPa, the 63mm bore is correct; if you need less force, a 50mm bore provides 982 N at 0.5 MPa. 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. With the 625mm stroke, use an external guide to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same bore / stroke → SAU63X625S
- ✓ 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 SU63X625S FAQ
Yes, the SU63X625S is discontinued. The direct replacement is the AirTAC SAU63X625S. It shares the same 63mm bore, 625mm stroke, 3/8" port, output force, and SC-series mounting accessories, so it fits the same application directly.
The 63mm bore delivers 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. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X625S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X625S replacement — usually within 7-8 hours.