This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X500-100S, 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 SUJ40X500-100S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X500-100S 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 SAUJ40X500-100S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke500 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X500-100S
- 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 SUJ40X500-100S
The AirTAC SUJ40X500-100S is a discontinued double-acting double-rod adjustable-stroke profile cylinder. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, giving a usable 400-500 mm extension out of the 500 mm nominal maximum. The direct replacement is the SAUJ40X500-100S, matching the bore, stroke, force, port, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The SAUJ upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches while retaining the compact profile barrel that is shorter than an ISO 15552 cylinder of the same bore.
Airtac SUJ Adjustable Cylinder SUJ40X500-100S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X500-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X500-100S |
| 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 SAUJ40X500-100S 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 SAUJ40X500-100S 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 SUJ40X500-100S
| 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 SUJ40X500-100S Is Used
Variable-Length Ejection
Tuning the extend stroke by up to 100 mm on-site allows an ejection arm to adapt to varying part depths without re-mounting the cylinder.
Adjustable Diverter Gate
Field-trimming the extend position lets a diverter gate accommodate different box widths on a packaging line directly at the machine.
Variable-Depth Pallet Stops
Shortening the extend stroke by up to 100 mm provides precise pallet positioning for varying load depths without adding external mechanical stops.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X500-100S with the SAUJ40X500-100S
To replace the discontinued SUJ40X500-100S, order the direct replacement SAUJ40X500-100S, which preserves the 40 mm bore, 500 mm max stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 100 mm adjust window if you need on-site extend tuning between 400 and 500 mm without external stops. Because this is a 500 mm stroke, ensure external guides carry side loads to prevent rod bending. The -S suffix indicates a piston magnet; the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Mounting is compatible with the AirTAC SC series only.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X500-100S
- ✓ 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 SUJ40X500-100S FAQ
Yes, the SUJ40X500-100S is discontinued. The direct replacement is the SAUJ40X500-100S, which matches the 40 mm bore, 500 mm stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw allows trimming the extend stroke by up to 100 mm on-site (usable extend 400-500 mm). The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X500-100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X500-100S replacement — usually within 7-8 hours.