This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ80X500-40S, 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 SUJ80X500-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-40S 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 SAUJ80X500-40S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-40S
- 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 SUJ80X500-40S
The AirTAC SUJ80X500-40S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 460-500 mm extension out of the 500 mm nominal maximum. It features a 25 mm rod, M20x1.5 rod thread, 28 mm adjustable air cushions, and a 3/8" port.
The direct replacement is the SAUJ80X500-40S, matching the bore, stroke, force, port, and FA/LB mounting. The SUJ80X500-40S is discontinued; upgrading to the SAUJ swaps the legacy CS1-B/DS1-B sensors for current CMSG/DMSG/EMSG switches while retaining the compact profile barrel. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ80X500-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-40S |
| 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 SAUJ80X500-40S 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 SAUJ80X500-40S 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 SUJ80X500-40S
| 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 SUJ80X500-40S Is Used
Variable-Length Ejection
Tuning the extend stroke by up to 40 mm on-site allows a single 500 mm cylinder to eject parts of varying widths without changing the entire actuator setup.
Adjustable Transfer Stop
Trimming the extend stroke to 460 mm creates a precise, field-adjustable physical stop for diverging package sizes on a transfer line.
Variable-Depth Palletizing
The 40 mm on-site adjust window accommodates slight variations in pallet depth or load protrusion, ensuring consistent positioning without re-mounting hardware.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-40S with the SAUJ80X500-40S
To replace the discontinued SUJ80X500-40S, order the direct replacement SAUJ80X500-40S, which preserves the 80 mm bore, 500 mm max stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. Choose the 40 mm adjust window if your extend stroke needs field tuning between 460 and 500 mm. Because the -S suffix denotes a piston magnet, swap the legacy CS1-B/DS1-B switches for CMSG/DMSG/EMSG sensors on the SAUJ. For this 500 mm long stroke, support the load with external guides to prevent rod bending and side-load wear. The stop screw sets end position but is not a lock; add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-40S
- ✓ 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 SUJ80X500-40S FAQ
Yes, the SUJ80X500-40S is discontinued. The direct replacement is the SAUJ80X500-40S, which matches the 80 mm bore, 500 mm stroke, 40 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 40 mm adjust window, allowing you to trim the extend stroke from the 500 mm maximum down to 460 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ80X500-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ80X500-40S replacement — usually within 7-8 hours.