This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X525, 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 Airtac SU63-100 Standard Cylinder SU63X525 is a double-acting profile-type standard cylinder with a Ø63mm bore and 525mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X525, which matches its bore, stroke, force and mounting.
The AirTAC SU63X525 is a discontinued double-acting profile-type cylinder with a 63mm bore and 525mm stroke. Delivering 1559N push and 1402N pull at 0.5MPa, its direct replacement is the SAU63X525, retaining the same 3/8 port, M16x1.5 rod thread, and SC-series mounting compatibility.
This extruded aluminium body is more compact than an ISO 15552 equivalent. The SAU upgrade switches legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors and adds the SAUF built-in-valve option. This non-magnet SKU cannot take a sensor.
| Model | Airtac SU63-100 Standard Cylinder SU63X525 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X525 |
| Bore size | Ø63 mm |
| Stroke | 525 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 SAU63X525 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 SAU63X525 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. |
| ×525 | 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.
Pushes heavy pallets sideways on a high-speed packaging line, utilising the 1559N push force at 0.5MPa to overcome friction reliably.
Secures heavy steel workpieces for machining, providing consistent 1402N pull force while the 525mm stroke accommodates varying part widths.
To replace the SU63X525, order the SAU63X525, confirming the 63mm bore, 525mm stroke, 3/8 port, and SC-series mounting. If sizing neighbours, a 50mm bore yields 982N [email protected] while an 80mm bore provides 2513N. For the 525mm stroke, use external guides to prevent rod bending under side loads. The air cushion only decelerates; use an external rod lock or pilot-operated check valve to hold loads. The SAUF variant offers a built-in 4M valve if needed.
Replacement checklist
Yes, the SU63X525 is discontinued. The direct replacement is the SAU63X525, which shares the same 63mm bore, 525mm stroke, output force, 3/8 port, and SC-series mounting accessories.
It delivers 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. This non-magnet SKU cannot accept a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches if sensing is required.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X525 replacement — usually within 7-8 hours.