This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X150-50STC, 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 SUJ50X150-50STC
The AirTAC SUJ Adjustable Cylinder SUJ50X150-50STC is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X150-50STC, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-50STC
- 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 SUJ50X150-50STC
The AirTAC SUJ50X150-50STC is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site. This yields a usable 100-150 mm extend window from the 150 mm nominal maximum. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable cushions.
Because this SUJ is end-of-life, the direct replacement is the SAUJ50X150-50STC, retaining the same force, port, and SC-series FA/LB mounting. The SAUJ upgrades sensing to current CMSG/DMSG/EMSG switches, whereas this legacy unit used CS1-B/DS1-B sensors (indicated by the -S suffix). The stop screw sets end position only; it is not a load lock, so add an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ50X150-50STC Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-50STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-50STC |
| Bore size | Ø50 mm |
| Stroke | 150 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 SAUJ50X150-50STC 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 SAUJ50X150-50STC 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 SUJ50X150-50STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SUJ50X150-50STC Is Used
Variable Pitch Feed
Adjusting the extend stroke on-site by up to 50 mm to tune material push distances without swapping cylinders for different product lengths.
Sorting Diverter
Field-trimming the 100-150 mm extend window to precisely align a diverting gate with varying package profiles on a packaging line.
Adjustable Stop Position
Setting a hard external stop position for pallets or workpieces, allowing 50 mm of flexibility to accommodate different pallet heights.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-50STC with the SAUJ50X150-50STC
To replace the discontinued SUJ50X150-50STC, select the direct replacement SAUJ50X150-50STC, which matches the 50 mm bore, 150 mm stroke, 50 mm adjust window, 1/4" port, and TC/FA/LB SC-series mounting. Choose the 50 mm adjust window if you need on-site extend trimming between 100 and 150 mm; the stop screw sets the end position but does not lock the load, so specify an external rod lock for vertical holding. For the -S magnet variant, migrate from legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches. Since the 150 mm stroke is under 300 mm, side-load wear is minimal, but ensure standard 30-800 mm/s speed limits are met.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-50STC
- ✓ 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 SUJ50X150-50STC FAQ
Yes, the AirTAC SUJ50X150-50STC is discontinued. The direct replacement is the SAUJ50X150-50STC, which matches the 50 mm bore, 150 mm stroke, 50 mm adjust window, 1/4" port, and TC/FA/LB SC-series mounting. The SAUJ also upgrades the -S magnet sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 50 mm adjust window, allowing you to trim the extend stroke from the 150 mm nominal maximum down to 100 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X150-50STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-50STC replacement — usually within 7-8 hours.