This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X500-30S, 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 SUJ40X500-30S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X500-30S is a double-acting profile-type standard cylinder with a Ø40mm bore and 500mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X500-30S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke500 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X500-30S
- 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 SUJ40X500-30S
The AirTAC SUJ40X500-30S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 470-500 mm stroke. The nominal 500 mm is the maximum. The stop sets end position only; it is not a load lock, so use an external rod lock for held loads.
This SUJ40X500-30S unit is discontinued and the direct replacement is the SAUJ40X500-30S, retaining the same force, port, and FA/LB mounting. Upgrading to the SAUJ moves you from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. At 500 mm stroke, external guides are advised to prevent rod bending.
Airtac SUJ Adjustable Cylinder SUJ40X500-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X500-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X500-30S |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X500-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X500-30S 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 SUJ40X500-30S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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 SUJ40X500-30S Is Used
Variable-Length Ejector
Tuning the extend stroke by up to 30 mm on-site allows an ejection pin to hit different material thicknesses without swapping the entire cylinder.
Adjustable Transfer Stop
Field-trimming the extend stroke lets a transfer line stop block accommodate varying package widths on the fly without re-mounting hardware.
Calibrated Sealing Press
Dialing in the 470-500 mm extend endpoint ensures precise contact pressure for packaging seals, compensating for material variance.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X500-30S with the SAUJ40X500-30S
To replace the discontinued SUJ40X500-30S, order the direct replacement SAUJ40X500-30S, which matches the 40 mm bore, 500 mm max stroke, 1/4" port, and FA/LB mounting. Choose the -30 mm adjust window when you need on-site extend tuning between 470-500 mm; if you need more trim, consider a larger adjust window. Because the -S magnet is present, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. For this 500 mm stroke, add external guides to manage side-load and prevent rod bending. The stop screw sets end position and is not a lock; for load holding on air loss, specify an external rod lock.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X500-30S
- ✓ 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 SUJ40X500-30S FAQ
Yes, the SUJ40X500-30S is discontinued. The direct replacement is the SAUJ40X500-30S, which shares the same 40 mm bore, 500 mm max stroke, 1/4" port, and FA/LB mounting. You will need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
The external stop screw window is 30 mm, allowing you to trim the extend stroke on-site from the 500 mm maximum down to 470 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X500-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X500-30S replacement — usually within 7-8 hours.