This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ80X500-75, 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 SUJ80X500-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-75 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 SAUJ80X500-75, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-75
- 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 SUJ80X500-75
The AirTAC SUJ80X500-75 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 425-500 mm extend out of the 500 mm nominal maximum. It features a 25 mm rod, M20x1.5 rod thread, 28 mm adjustable cushions, and a 3/8" port.
This SUJ unit is discontinued; the direct replacement is the SAUJ80X500-75, retaining the same bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade path moves to current CMSG/DMSG/EMSG sensors, as this legacy model used CS1-B/DS1-B switches. Note this non-magnet SKU cannot take a sensor, and the stop screw sets end position—it is not a load lock.
Airtac SUJ Adjustable Cylinder SUJ80X500-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-75 |
| 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 SAUJ80X500-75 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 SAUJ80X500-75 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 SUJ80X500-75
| 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 SUJ80X500-75 Is Used
Variable-Length Ejector Stroke
Trimming the extend stroke by up to 75 mm on-site lets a production line tune part ejection distance for varying product sizes without changing the entire cylinder.
Adjustable Transfer Pusher
A 500 mm extend stroke can be dialed back to 425 mm to position a transfer pusher precisely for different pallet widths, setting the exact end position mechanically.
Tunable Divert Gate Arm
Field-tuning the extend stop allows a sorting diverter gate to hit distinct actuation points for mixed package depths on a packing line.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-75 with the SAUJ80X500-75
To replace the discontinued SUJ80X500-75, order the SAUJ80X500-75; it is a direct swap keeping the 3/8" port, 500 mm nominal stroke, and 75 mm adjust window. Choose the 75 mm adjust window if you need on-site tuning of the extend end position without swapping the cylinder. Mounting uses FA or LB brackets (SC-series compatible). Because this is a non-magnet SKU, it cannot accept a sensor; if sensing is required, move to an SAUJ-S variant and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. At 500 mm stroke, mind the side-load and rod-bending limits—use external guides to prevent binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-75
- ✓ 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 SUJ80X500-75 FAQ
Yes, the SUJ80X500-75 is discontinued. The direct replacement is the SAUJ80X500-75, which matches the 80 mm bore, 500 mm stroke, 75 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw window is 75 mm, shortening the 500 mm nominal extend stroke down to 425 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ80X500-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ80X500-75 replacement — usually within 7-8 hours.