This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X800-100, 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 SUJ Adjustable Cylinder SUJ100X800-100 is a double-acting profile-type standard cylinder with a Ø100mm bore and 800mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X800-100, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X800-100 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 700-800 mm extension out of the 800 mm nominal maximum. It features a 25 mm rod, M20x1.5 rod thread, 29 mm adjustable air cushions, and a 1/2" port.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X800-100, retaining the same profile barrel, bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade shifts sensing to current CMSG/DMSG/EMSG switches (this legacy SKU lacks a magnet and cannot take any switch) and offers the SAUF built-in-valve variant. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X800-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X800-100 |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAUJ100X800-100 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 SAUJ100X800-100 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. |
| ×800 | 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.
Tuning the extend stroke by up to 100 mm on-site allows a large ejection mechanism to accommodate different product lengths without re-mounting the cylinder.
Trimming the 800 mm extend stroke precisely positions a transfer gate for varying pallet sizes, setting the exact end position via the external stop screw.
Field-adjusting the extend stroke by up to 100 mm lets a single pusher station handle multiple box footprints on the fly, avoiding the need for fixed-stroke cylinder swaps.
To replace the discontinued SUJ100X800-100, specify the SAUJ100X800-100 direct: it preserves the 100 mm bore, 800 mm max stroke, 100 mm adjust window, 1/2" port, and FA/LB mounting. Select the 100 mm adjust window only if your process truly requires trimming up to 100 mm off the extend stroke on-site. Because this SKU has no magnet, it cannot accept legacy CS1-B/DS1-B or modern CMSG/DMSG/EMSG sensors; if sensing is required, you must select an -S SAUJ variant. Finally, at an 800 mm stroke, the 25 mm rod is highly susceptible to side-load and bending; always use external guides to prevent rod damage.
Replacement checklist
Yes, the SUJ100X800-100 is discontinued. The direct replacement is the SAUJ100X800-100, which shares the same 100 mm bore, 800 mm stroke, 100 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also supports current CMSG/DMSG/EMSG sensors, whereas this non-magnetic SUJ SKU cannot accept a switch.
The external stop screw allows you to trim the extend stroke by up to 100 mm on-site, giving a usable 700-800 mm extension. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X800-100 replacement — usually within 7-8 hours.