This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X100-40S, 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 SUJ50X100-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X100-40S is a double-acting profile-type standard cylinder with a Ø50mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X100-40S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X100-40S
- 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 SUJ50X100-40S
The AirTAC SUJ50X100-40S is a double-acting, double-rod profile cylinder with a 50mm bore and 100mm nominal stroke, discontinued and replaced by the direct replacement SAUJ50X100-40S. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 60-100mm extension. This compact aluminum barrel is shorter than an ISO 15552 cylinder of the same bore.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ replacement retains the exact bore, stroke, force, and FA/LB mounting, but upgrades sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ50X100-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X100-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X100-40S |
| Bore size | Ø50 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ50X100-40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X100-40S 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 SUJ50X100-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SUJ50X100-40S Is Used
Variable Pitch Forming
Allows operators to fine-tune the extend stroke by up to 40mm on-site to accommodate different material thicknesses or forming depths without swapping cylinders.
Adjustable Transfer Stops
Provides a field-adjustable end position for diverting or stopping varying package sizes on a line, trimming the 100mm stroke precisely where needed.
Custom Length Pushers
Enables quick changes to the pusher extension distance in sorting areas, adapting the 60-100mm usable stroke to specific bin clearances.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X100-40S with the SAUJ50X100-40S
To replace the discontinued SUJ50X100-40S, use the exact direct replacement SAUJ50X100-40S, which preserves the 50mm bore, 100mm nominal stroke, 40mm adjust window, 1/4" port, and FA/LB mounting. Choose the 40mm adjust window if you need to trim the extend stroke on-site between 60 and 100mm. Because this is an -S model, you must upgrade your position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. Mounting compatibility is strictly with the AirTAC SC series. For stroke lengths of 300mm or more, carefully verify your side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X100-40S
- ✓ 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 SUJ50X100-40S FAQ
Yes, the SUJ50X100-40S is discontinued. The direct replacement is the SAUJ50X100-40S, which matches the 50mm bore, 100mm stroke, 40mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked. You must upgrade sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw allows you to trim the extend stroke by up to 40mm on-site, giving a usable extension range of 60-100mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X100-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X100-40S replacement — usually within 7-8 hours.