This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X45H, 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 SU63X45H is a double-acting profile-type standard cylinder with a Ø63mm bore and 45mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X45H, which matches its bore, stroke, force and mounting.
The AirTAC SU63X45H is a discontinued double-acting profile-type cylinder with a 63mm bore, 45mm stroke, and Viton H high-temperature seals (0-150 C). It delivers 1559 N push and 1402 N pull at 0.5 MPa. AirTAC replaced this EOL unit with the SAU63X45H, a direct replacement retaining the exact 3/8" port, M16x1.5 rod thread, and SC-series mounting footprint.
Because the extruded aluminum body has no external rods, it is shorter than an ISO 15552 cylinder of the same bore. This non-magnetic SKU cannot accept a sensor, and while the SAU upgrade matches the body exactly, its sensing groove uses the newer CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B family.
| Model | Airtac SU63-100 Standard Cylinder SU63X45H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X45H |
| Bore size | Ø63 mm |
| Stroke | 45 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 SAU63X45H 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 SAU63X45H 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. |
| ×45 | 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.
Ideal for pushing parts out of hot zones up to 150 C using the Viton H seal, leveraging the 1559 N push force at 0.5 MPa.
Provides robust 63mm bore holding power in a compact 45mm stroke for securing workpieces during machining operations.
Delivers rapid 30-800 mm/s actuation to route items on a production line, fitting neatly into existing SC-series mounting brackets.
To replace this SU63X45H, order the SAU63X45H and confirm your 3/8" port threads (PT, G, or NPT) and SC-series mounting accessories (LB, FA, FB, CA, CB). This SKU lacks a magnet (-S), so it cannot support position sensing; if you need switches on the new SAU, you must select the -S option and use CMSG/DMSG/EMSG sensors. For sizing, the 63mm bore yields 1559 N at 0.5 MPa; if you need less force, a 50mm bore provides 982 N, and an 80mm bore offers 2513 N. Note that a plain cylinder drifts on air loss—the cushions only decelerate—so use an external rod lock or pilot-operated check valve for held loads. The 45mm stroke is well within standard limits, so no side-load rod-bending concerns apply here.
Replacement checklist
Yes, the AirTAC SU63X45H is discontinued. The direct replacement is the SAU63X45H, which matches the 63mm bore, 45mm stroke, 3/8" port, and SC-series mounting. The SAU also adds an optional SAUF variant with a built-in 4M solenoid valve that the SU line lacked.
The 63mm bore provides 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, so it cannot accept a sensor. If you order a magnet-equipped SAU replacement (-S), it uses current CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X45H replacement — usually within 7-8 hours.