This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X50-40S, 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 SUJ100X50-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X50-40S is a double-acting profile-type standard cylinder with a Ø100mm bore and 50mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X50-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke50 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X50-40S
- 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 SUJ100X50-40S
The AirTAC SUJ100X50-40S 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 10-50 mm extend out of the 50 mm nominal maximum. It features a 1/2" port, a 25 mm rod, M20x1.5 rod thread, and 29 mm adjustable cushions.
This SUJ model is discontinued and the direct replacement is the SAUJ100X50-40S, which preserves the bore, stroke, force, 1/2" port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. The stop screw sets the end position but is not a lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X50-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X50-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X50-40S |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X50-40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X50-40S 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 SUJ100X50-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SUJ100X50-40S Is Used
Variable Stroke Clamping
Adjusts the extend stroke on-site to clamp parts of varying heights without repositioning the entire fixture.
Variable Diverter Gate
Tunes the pusher extension length on a conveyor line to deflect different package sizes accurately.
Adjustable Height Stops
Sets precise end positions for pallets or lifts in material handling, allowing quick changes to the stop distance.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X50-40S with the SAUJ100X50-40S
To replace the discontinued SUJ100X50-40S, specify the SAUJ100X50-40S. It is a direct: same 100 mm bore, 50 mm nominal stroke, 40 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 40 mm adjust window when you need field tuning between 10 and 50 mm; the SAUJ beats a fixed SAU plus external stop by integrating the stop screw cleanly. Because this is an -S model, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. For strokes >=300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X50-40S
- ✓ 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 SUJ100X50-40S FAQ
Yes, the SUJ100X50-40S is discontinued. The direct replacement is the SAUJ100X50-40S, which matches the 100 mm bore, 50 mm stroke, 40 mm adjust window, 1/2" 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 offers a 40 mm adjust window, shortening the 50 mm nominal extend stroke down to 10 mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X50-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X50-40S replacement — usually within 7-8 hours.