This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X125-75, 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 SUJ32X125-75
The AirTAC SUJ Adjustable Cylinder SUJ32X125-75 is a double-acting profile-type standard cylinder with a Ø32mm bore and 125mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ32X125-75, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X125-75
- 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 SUJ32X125-75
The AirTAC SUJ32X125-75 is a discontinued 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 extension from the 125 mm nominal maximum. The compact extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same 32 mm bore.
Because the SUJ line is end-of-life, the direct replacement is the SAUJ32X125-75, which retains the same bore, stroke, force, port, and FA/LB mounting. A key upgrade is that the SAUJ uses current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
Airtac SUJ Adjustable Cylinder SUJ32X125-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X125-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X125-75 |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ32X125-75 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X125-75 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 SUJ32X125-75
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | 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 SUJ32X125-75 Is Used
Variable Pitch Marking
Dialing in the extend stroke by up to 75 mm on-site allows a marking head to hit different product pitches without swapping the entire cylinder.
Adjustable Transfer Stops
A 50-125 mm extend window lets an inline stopper handle mixed carton sizes on the same line, tuning the end position with an external screw.
Variable Depth Sealing
Trimming the extend stroke on the machine lets operators set precise sealing depth for varied package heights without changing profile cylinders.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X125-75 with the SAUJ32X125-75
To replace the discontinued SUJ32X125-75, specify the direct replacement SAUJ32X125-75, which matches the 32 mm bore, 125 mm stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. Choose the 75 mm adjust window if your fixture needs field tuning between 50 mm and 125 mm extend lengths; a fixed SAU cylinder plus external stop is bulkier, making the SAUJ superior for tight profile builds. Since this non-magnet SKU lacks a switch, the SAUJ upgrade allows adding CMSG/DMSG/EMSG sensors (the SUJ used legacy CS1-B/DS1-B). For strokes of 300 mm or longer, verify side-load limits to prevent rod binding. The stop screw sets end position but does not lock the load—install an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X125-75
- ✓ 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 SUJ32X125-75 FAQ
Yes, the SUJ32X125-75 is discontinued. The direct replacement is the SAUJ32X125-75, offering the same 32 mm bore, 125 mm nominal stroke, 75 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ also supports current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw shortens the extend stroke by up to 75 mm on-site, giving a 50-125 mm usable range. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X125-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X125-75 replacement — usually within 7-8 hours.