This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X125-30S, 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 SUJ100X125-30S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X125-30S is a double-acting profile-type standard cylinder with a Ø100mm bore and 125mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X125-30S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X125-30S
- 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 SUJ100X125-30S
The AirTAC SUJ100X125-30S 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, yielding a usable 95-125 mm extension from the 125 mm nominal maximum. The bore dictates a 1/2" port, a Ø25 mm piston rod, and 29 mm adjustable air cushions at each end. Operating speed spans 30-800 mm/s.
This SUJ unit is discontinued and is replaced direct by the SAUJ100X125-30S, which retains the exact bore, stroke, force, port, and FA/LB mounting. Because this is an -S model, it has a piston magnet for legacy CS1-B/DS1-B switches; the SAUJ successor upgrades to current CMSG/DMSG/EMSG sensors. The stop screw sets the end position but is not a load lock—external air is required to hold position.
Airtac SUJ Adjustable Cylinder SUJ100X125-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X125-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X125-30S |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAUJ100X125-30S 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 SAUJ100X125-30S 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 SUJ100X125-30S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SUJ100X125-30S Is Used
Press Fit Tuning
Allows operators to fine-tune the 95-125 mm extend stroke on-site to achieve the exact seating depth for pressing bearings without swapping physical spacers.
Variable Length Diverter
Ideal for diverting varying package sizes on a line, where the 30 mm stroke trim adjusts the pusher reach dynamically to prevent crushing cartons.
Adjustable End Stops
Used in pallet handling to set precise end positions for different pallet footprints, trimming the extend stroke by up to 30 mm to accommodate load variations.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X125-30S with the SAUJ100X125-30S
To replace the discontinued SUJ100X125-30S, order the direct replacement SAUJ100X125-30S, matching the 100 mm bore, 125 mm nominal stroke, 30 mm adjust window, and 1/2" port. Choose the 30 mm adjust window if your fixture tuning requires trimming the extend stroke down to 95 mm. Mounting is compatible with AirTAC SC-series FA and LB brackets. Because this is an -S model, you must upgrade your sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify your side-load limits to prevent rod binding. Remember that the stop screw sets end position and does not lock the load; use an external rod lock for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X125-30S
- ✓ 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 SUJ100X125-30S FAQ
Yes, the SUJ100X125-30S is discontinued. The direct replacement is the SAUJ100X125-30S, which matches the 100 mm bore, 125 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The external stop screw provides a 30 mm trim window, allowing the extend stroke to be shortened from the 125 mm maximum down to 95 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X125-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X125-30S replacement — usually within 7-8 hours.