This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X850, 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 SU100X850 is a double-acting profile-type standard cylinder with a Ø100mm bore and 850mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X850, which matches its bore, stroke, force and mounting.
The AirTAC SU100X850 is a discontinued double-acting profile-type cylinder with an 850 mm stroke. As a nonstandard stroke exceeding the 800 mm typical range but within the 1500 mm maximum, it delivered 3927 N push force at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAU100X850, a direct alternative retaining the exact 100 mm bore, 1/2" port, M20x1.5 rod thread, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU replacement modernizes sensing via CMSG/DMSG/EMSG switches, and introduces the SAUF built-in 4M valve option the SU line never had.
| Model | Airtac SU63-100 Standard Cylinder SU100X850 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X850 |
| Bore size | Ø100 mm |
| Stroke | 850 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 SAU100X850 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 SAU100X850 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. |
| ×850 | 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.
Drives heavy parts out of molding presses using 3927 N of push force at 0.5 MPa over the 850 mm travel distance.
Actuates large mechanical assemblies over the long 850 mm stroke, requiring external guides to prevent rod bending.
To replace this discontinued SU100X850 with the SAU100X850, verify the 100 mm bore, 850 mm stroke, 1/2" port, and SC-series mounting hardware. If stepping down to an 80 mm bore, expect a drop to 2513 N push at 0.5 MPa; stepping up is impossible as 100 mm is the largest profile size. This non-magnetic SKU cannot accept a switch, but if your replacement needs sensing, specify the SAU100X850S to use modern CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For the 850 mm stroke, use an external guide to prevent rod bending and side-load damage. Note that neither cylinder holds load without air; add an external rod lock or pilot-operated check valve for safety, and consider the SAUF valve-integrated variant for self-switching.
Replacement checklist
Yes, the AirTAC SU100X850 is discontinued. The direct replacement is the SAU100X850. It provides identical performance with the same 100 mm bore, 850 mm stroke, 1/2" port, and SC-series mounting accessories. The SAU body also retains the 29 mm adjustable air cushions at both ends.
At 0.5 MPa it provides 3927 N push and 3681 N pull force, rising to 5497 N at 0.7 MPa, with a theoretical max of 801 kgf at 1.0 MPa. Because this specific SU100X850 SKU lacks a magnet, it cannot accept a sensor. If sensing is required on the SAU replacement, you must order the -S version which uses current CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X850 replacement — usually within 7-8 hours.