This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the drop-in replacement SAUJ32X80-40, 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 SUJ32X80-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X80-40 is a double-acting profile-type standard cylinder with a Ø32mm bore and 80mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ32X80-40, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X80-40
- 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 SUJ32X80-40
The AirTAC SUJ32X80-40 is a discontinued double-acting single-rod profile cylinder with an on-site stroke-trim window. An external stop screw shortens the extend stroke by up to 40 mm, yielding a usable 40-80 mm range from the 80 mm nominal maximum. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore. This 32 mm bore uses a 1/8" port, a 12 mm rod, and delivers 402 N push / 345 N pull at 0.5 MPa. The exact drop-in replacement is the SAUJ32X80-40, matching the bore, stroke, force, port, and FA/LB mounting.
For sizing, the safe working load is roughly 241 N (about 60% of the 402 N push at 0.5 MPa), translating to a 20 kg vertical lift with a 2:1 margin. The adjust stop sets the end position but is not a load lock; the piston drifts on air loss, requiring an external rod lock for held loads. The SAUJ upgrade switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, while the compact SC-series mounting footprint remains unchanged.
Airtac SUJ Adjustable Cylinder SUJ32X80-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X80-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X80-40 |
| Bore size | Ø32 mm |
| Stroke | 80 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 SAUJ32X80-40 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 SAUJ32X80-40 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ32X80-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 SUJ32X80-40 Is Used
Variable Pitch Forming
A 32 mm bore press that trims the extend stroke by up to 40 mm on-site to accommodate different material thicknesses without swapping the entire actuator.
Adjustable Transfer Pusher
A transfer line diverter requiring a 40-80 mm extend range to handle varying package sizes, using the external stop screw to set the exact end position.
Carton Flap Folding
A packaging machine that needs field stroke tuning to fold varying carton heights, relying on the 1/8" port cylinder's 345 N pull at 0.5 MPa.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X80-40 with the SAUJ32X80-40
To replace the discontinued SUJ32X80-40, order the drop-in SAUJ32X80-40, which preserves the 32 mm bore, 80 mm nominal stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. When sizing both ways, the neighboring 40 mm bore provides higher force (628 N push @0.5 MPa), while smaller bores reduce force. Choose the 40 mm adjust window if your extend stroke needs on-site tuning between 40 and 80 mm. Because this non-magnetic SKU lacks a switch groove, you cannot add sensing; the SAUJ upgrade requires current CMSG/DMSG/EMSG sensors instead of legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X80-40
- ✓ 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 SUJ32X80-40 FAQ
Yes, the SUJ32X80-40 is discontinued. The exact drop-in replacement is the SAUJ32X80-40, which matches the 32 mm bore, 80 mm nominal stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The double-acting single-rod 32 mm bore provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The external stop screw window is 40 mm, allowing you to shorten the 80 mm nominal extend stroke down to 40 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
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