This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X25-30, 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 SUJ100X25-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X25-30 is a double-acting profile-type standard cylinder with a Ø100mm bore and 25mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X25-30, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke25 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X25-30
- 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 SUJ100X25-30
The AirTAC SUJ100X25-30 is a double-acting, double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site. With a nominal 25 mm stroke, the usable extend range is 0-25 mm, and the stop sets the end position but is not a load lock. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions.
This SUJ model is discontinued and the direct replacement is the SAUJ100X25-30, which matches the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. Note this non-magnetic SKU cannot take a switch, and plain cylinders drift on air loss, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X25-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X25-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X25-30 |
| Bore size | Ø100 mm |
| Stroke | 25 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 SAUJ100X25-30 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 SAUJ100X25-30 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 SUJ100X25-30
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×25 | 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 SUJ100X25-30 Is Used
Press Fit Tuning
Trimming the extend stroke by up to 30 mm on-site allows operators to dial in the exact bottoming position for delicate press-fit operations without machining spacers.
Variable Depth Sealing
Adjusting the extend end position on the fly accommodates different box heights or sealing depths, ensuring consistent contact pressure for varying packaging runs.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X25-30 with the SAUJ100X25-30
To replace the discontinued SUJ100X25-30, order the direct replacement SAUJ100X25-30, which preserves the 100 mm bore, 25 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 30 mm adjust window when you need precise field tuning of the extend end position. Because this is a non-magnetic SKU, it cannot accept a switch; if sensing is required, select an SAUJ with the -S suffix and upgrade to CMSG/DMSG/EMSG sensors. For stroke lengths at or above 300 mm, verify side-load limits to prevent guide wear. The external stop sets end position but is not a lock; for load holding on air loss, install an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X25-30
- ✓ 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 SUJ100X25-30 FAQ
Yes, the SUJ100X25-30 is discontinued. The direct replacement is the SAUJ100X25-30, which matches the 100 mm bore, 25 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw window is 30 mm, letting you trim the extend stroke on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X25-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X25-30 replacement — usually within 7-8 hours.