This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X125-75S, 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 SUJ100X125-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X125-75S 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 SAUJ100X125-75S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X125-75S
- 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 SUJ100X125-75S
The AirTAC SUJ100X125-75S 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 50-125 mm stroke. The stop sets the end position and is not a load lock; use an external rod lock for held loads.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X125-75S, retaining the exact bore, stroke, 1/2" port, and SC-series FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy model uses CS1-B/DS1-B switches.
Airtac SUJ Adjustable Cylinder SUJ100X125-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X125-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X125-75S |
| 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 SAUJ100X125-75S 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 SAUJ100X125-75S 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 SUJ100X125-75S
| 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 SUJ100X125-75S Is Used
Variable Depth Boring
Machine tools requiring field stroke tuning to set precise boring depths between 50 and 125 mm without swapping the entire cylinder body.
Adjustable Carton Flaps
Packaging lines that need to trim the extend stroke by up to 75 mm on-site to accommodate varying carton sizes on the fly.
Variable Height Stops
Material handling stop gates where the external screw adjusts the extend endpoint dynamically for different pallet heights.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X125-75S with the SAUJ100X125-75S
To replace the discontinued SUJ100X125-75S, specify the direct replacement SAUJ100X125-75S, which matches the 100 mm bore, 125 mm nominal stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 75 mm adjust window if your fixture needs on-site extend tuning from 50 to 125 mm. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load guidance to prevent rod bearing wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X125-75S
- ✓ 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 SUJ100X125-75S FAQ
Yes, the SUJ100X125-75S is discontinued. The direct replacement is the SAUJ100X125-75S, which shares the same 100 mm bore, 125 mm stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. You only need to upgrade the position sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
This double-acting double-rod cylinder pushes 3927 N and pulls 3681 N at 0.5 MPa, pushing 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw provides a 75 mm adjust window, allowing you to shorten the 125 mm maximum extend stroke down to 50 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X125-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X125-75S replacement — usually within 7-8 hours.