This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ80X500-75S, 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 SUJ80X500-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-75S is a double-acting profile-type standard cylinder with a Ø80mm bore and 500mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ80X500-75S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-75S
- 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 SUJ80X500-75S
The AirTAC SUJ80X500-75S 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 425-500 mm window from the 500 mm nominal maximum. The bore dictates a 3/8" port and a 25 mm piston rod with an M20x1.5 thread. This unit is discontinued; the direct replacement is the SAUJ80X500-75S, retaining the same force, port, and FA/LB mounting.
The stop screw sets the end position but is not a lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUJ replacement upgrades to current CMSG/DMSG/EMSG sensors. At a 500 mm stroke, external guides are recommended to mitigate rod bending and side loads.
Airtac SUJ Adjustable Cylinder SUJ80X500-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-75S |
| Bore size | Ø80 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ80X500-75S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUJ80X500-75S 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 SUJ80X500-75S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SUJ80X500-75S Is Used
Variable-Length Pressing
Dialing in the exact contact position on assemblies where material thickness varies, using the 75 mm window to avoid over-travel.
Adjustable Diverter Stroke
Tuning the extend distance on a sorting line to accommodate different package sizes without swapping the entire actuator.
End-Position Calibration
Setting precise end stops for palletizing tools in the field, allowing 425-500 mm of travel to adapt to fixture heights.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-75S with the SAUJ80X500-75S
To replace the discontinued SUJ80X500-75S, order the direct replacement SAUJ80X500-75S, which matches the 80 mm bore, 500 mm nominal stroke, 75 mm adjust window, 3/8" port, and FA/LB mounting. Choose the 75 mm adjust window if your application requires field-tuning the extend stroke down to 425 mm; otherwise, a fixed SAU cylinder suffices. For the -S magnet version, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. Because the stroke is 500 mm, ensure external guides are used to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-75S
- ✓ 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 SUJ80X500-75S FAQ
Yes, the SUJ80X500-75S is discontinued. The direct replacement is the SAUJ80X500-75S, which matches the 80 mm bore, 500 mm stroke, 75 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ upgrades the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
The double-acting double-rod cylinder has a 75 mm adjust window, allowing the 500 mm extend stroke to be shortened to 425 mm on-site. The stop screw sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ80X500-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ80X500-75S replacement — usually within 7-8 hours.