This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X50H, 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 SU100X50H is a double-acting profile-type standard cylinder with a Ø100mm bore and 50mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X50H, which matches its bore, stroke, force and mounting.
The AirTAC SU100X50H is a discontinued double-acting profile-type cylinder with a 100 mm bore and 50 mm stroke. Built for high-temperature environments, its Viton H seals extend the operating range from -20 to 150 C. Delivering 3927 N of push force at 0.5 MPa (theoretical max 801 kgf at 1.0 MPa), it features a 1/2" port and an adjustable 29 mm air cushion at both ends. AirTAC replaced this legacy unit with the SAU100X50H, a direct replacement sharing the exact same profile body, force, port size, and SC-series mounting.
The SAU100X50H upgrade preserves the original 25 mm piston rod and M20x1.5 thread while introducing modern sensor grooves compatible with CMSG, DMSG, and EMSG switches. Because this specific SU SKU lacks a magnet, it cannot accept position sensors.
| Model | Airtac SU63-100 Standard Cylinder SU100X50H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X50H |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X50H carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X50H 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). |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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.
Applies 3927 N of thrust at 0.5 MPa for clamping composite materials in heated molds, utilizing the Viton H seals to withstand ambient temperatures up to 150 C without degrading.
Ejects dense metal castings from machining fixtures, safely handling a working load of 2356 N while relying on the 29 mm adjustable cushions to absorb kinetic energy at stroke end.
To replace the discontinued SU100X50H, order the SAU100X50H. Verify your 1/2" port threads (PT, G, or NPT) and confirm your SC-series mounting brackets (LB, FA, FB, CA, CB, TC) transfer over directly. This high-temp Viton H cylinder handles up to 150 C, but if your environment is standard, the NBR seal variant is an alternative. If you need position sensing, you must select an SAU model with the -S magnet option, as this base SKU cannot accept a sensor. For load holding, note that neither the SU nor the SAU locks the piston on air loss; the cushion only decelerates. Use an external rod lock or pilot-operated check valve for suspended loads. If sizing down, a 80 mm bore provides 2513 N push at 0.5 MPa; if sizing up is impossible, this 100 mm bore is the largest standard profile option.
Replacement checklist
Yes, the AirTAC SU100X50H is discontinued and end-of-life. The direct replacement is the SAU100X50H. It matches the original 100 mm bore, 50 mm stroke, 1/2" port, 801 kgf max force, and SC-series mounting accessories, meaning no mechanical modifications are needed. The SAU also adds an optional SAUF variant with a built-in 4M solenoid valve.
At 0.5 MPa, it pushes 3927 N and pulls 3681 N. Push force is 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept position sensors. The SAU replacement uses CMSG/DMSG/EMSG switches, but you must order the -S magnet option to enable sensing.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X50H replacement — usually within 7-8 hours.