This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X400-10S, 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 SUJ40X400-10S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X400-10S is a double-acting profile-type standard cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X400-10S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X400-10S
- 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 SUJ40X400-10S
The AirTAC SUJ40X400-10S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 390-400 mm stroke out of the 400 mm nominal maximum. This discontinued unit is replaced direct by the SAUJ40X400-10S.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ successor keeps the compact profile and SC-series FA/LB mounts but upgrades sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ40X400-10S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X400-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X400-10S |
| Bore size | Ø40 mm |
| Stroke | 400 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 SAUJ40X400-10S 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 SAUJ40X400-10S 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 SUJ40X400-10S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 SUJ40X400-10S Is Used
Diverter Gate Positioning
Fine-tune the 10 mm extend stop on-site to dial in the exact angle of a pneumatic diverter gate without remachining hard stops.
Package Feed Timing
Adjust the extend end-position slightly to synchronize a product pusher with a moving conveyor belt during changeovers.
Pallet Stop Height
Set a precise external stop for a pallet arrestor mechanism where a fixed 400 mm stroke leaves too much overtravel.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X400-10S with the SAUJ40X400-10S
To replace the discontinued SUJ40X400-10S, order the direct replacement SAUJ40X400-10S, which matches the 40 mm bore, 400 mm stroke, 10 mm adjust window, 1/4" port, and FA/LB mounting. Select the 10 mm adjust window if you need minor field tuning of the extend position. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG switches. At the 400 mm stroke length, support the piston rod against bending and use external guides to manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X400-10S
- ✓ 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 SUJ40X400-10S FAQ
Yes, the AirTAC SUJ40X400-10S is discontinued. The direct replacement is the SAUJ40X400-10S, which shares the same 40 mm bore, 400 mm stroke, 10 mm adjust window, 1/4" port, and FA/LB mounting. You will need to upgrade your position sensors from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.
The external stop screw provides a 10 mm adjustment window, allowing you to shorten the extend stroke from the 400 mm nominal maximum down to 390 mm. The stop sets end position only and does not lock the load.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X400-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X400-10S replacement — usually within 7-8 hours.