This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X300-75S, 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.
Airtac SUJ Adjustable Cylinder SUJ100X300-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X300-75S is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X300-75S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X300-75S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUJ Adjustable Cylinder SUJ100X300-75S
The AirTAC SUJ100X300-75S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 225-300 mm extension out of the 300 mm nominal maximum. It features a 100 mm bore, a 25 mm rod, M20x1.5 rod-end thread, and a 1/2" port. The stop screw sets the end position but is not a load lock; plain cylinders drift on air loss, so use an external rod lock for held loads.
The direct replacement is the SAUJ100X300-75S, matching the bore, stroke, force, port, and SC-series FA/LB mounting. Because this SUJ has the -S magnet, it used legacy CS1-B/DS1-B switches, whereas the SAUJ upgrade takes current CMSG/DMSG/EMSG sensors. At 300 mm stroke, external guides are advised to manage rod bending and side loads.
Airtac SUJ Adjustable Cylinder SUJ100X300-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-75S |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAUJ100X300-75S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X300-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ100X300-75S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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.
Where the Airtac SUJ Adjustable Cylinder SUJ100X300-75S Is Used
Variable Pitch Indexing
Allows operators to dial in exact 225-300 mm push distances on the fly for parts of varying widths without swapping the entire cylinder.
Adjustable Diverter Gate
Tunes the extend stop point on-site to route different package sizes, using the 75 mm trim window to alter the gate reach precisely.
Custom Format Stops
Provides field-adjustable end positions for packaging machines that must quickly reconfigure stroke limits for varied product lengths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X300-75S with the SAUJ100X300-75S
To replace the discontinued SUJ100X300-75S, order the direct replacement SAUJ100X300-75S, which preserves the 100 mm bore, 300 mm nominal stroke, 1/2" port, and FA/LB mounting. Choose the 75 mm adjust window when you need field-tuning of the extend stroke between 225 and 300 mm. For the -S magnet version, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. Because the stroke is 300 mm, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X300-75S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUJ Adjustable Cylinder SUJ100X300-75S FAQ
Yes, the SUJ100X300-75S is discontinued. The direct replacement is the SAUJ100X300-75S, which matches the 100 mm bore, 300 mm stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 75 mm adjust window, allowing you to trim the extend stroke from the 300 mm maximum down to 225 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X300-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X300-75S replacement — usually within 7-8 hours.