This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ32X125-20, 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 SUJ32X125-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X125-20 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 SAUJ32X125-20, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X125-20
- 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 SUJ32X125-20
The AirTAC SUJ32X125-20 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 105-125 mm from the 125 mm nominal maximum. The compact extruded aluminum barrel is notably shorter than a standard cylinder of the same 32 mm bore. This specific SKU has no magnet (-S omitted), so it cannot accept a magnetic switch. The bore dictates a 1/8" port, a Ø12 mm rod, and M10x1.25 rod-end threads.
The SAUJ upgrade transitions sensing to current CMSG/DMSG/EMSG switches, as this SUJ used legacy CS1-B/DS1-B sensors. The stop screw sets the end position but is not a load lock; drift occurs on air loss, requiring an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ32X125-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X125-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X125-20 |
| 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 SAUJ32X125-20 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 SAUJ32X125-20 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 SUJ32X125-20
| 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 SUJ32X125-20 Is Used
Probe Contact Tuning
Testing stations needing precise probe contact depth can dial in the extend stroke within the 105-125 mm window to protect delicate components without machining custom spacers.
Variable Length Diverter
Sorting conveyors handling mixed product lengths benefit from the 20 mm on-site stroke trim, allowing the diverter arm to adapt to different package sizes quickly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X125-20 with the SAUJ32X125-20
To replace the SUJ32X125-20, order the direct replacement SAUJ32X125-20, ensuring you migrate from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches if position detection is added later (note this base SKU lacks a magnet). The 20 mm adjust window is ideal if your extend stroke needs final tuning between 105 and 125 mm on-site, avoiding the need for a fixed-stroke cylinder plus an external stop. Mounting remains compatible with AirTAC SC-series FA and LB brackets. For strokes of 300 mm or longer, carefully verify side-load limits to prevent rod binding. The adjustable stop only sets end position and does not hold the load on air loss; specify an external rod lock for vertical or held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X125-20
- ✓ 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 SUJ32X125-20 FAQ
Yes, the AirTAC SUJ32X125-20 is discontinued. The SAUJ also supports the SAUF built-in-valve variant and uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 20 mm adjust window, allowing you to shorten the 125 mm nominal extend stroke down to 105 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ32X125-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X125-20 replacement — usually within 7-8 hours.