This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X150-50STC, 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 SUJ40X150-50STC
The AirTAC SUJ Adjustable Cylinder SUJ40X150-50STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X150-50STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X150-50STC
- 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 SUJ40X150-50STC
The AirTAC SUJ40X150-50STC is a 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, yielding a usable 100-150 mm stroke from the 150 mm nominal maximum. It features a 1/4" port, an M12x1.25 rod thread, and 21 mm adjustable cushions. This SUJ model is discontinued; the direct replacement is the SAUJ40X150-50STC, matching the bore, stroke, force, port, and SC-series mounting interface.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade retains the compact profile barrel but switches from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and the SAU line adds an SAUF built-in-valve variant this series lacked. The piston drifts on air loss, as cushions only decelerate near stroke end.
Airtac SUJ Adjustable Cylinder SUJ40X150-50STC Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X150-50STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X150-50STC |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAUJ40X150-50STC 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 SAUJ40X150-50STC 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 SUJ40X150-50STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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 SUJ40X150-50STC Is Used
Variable Pitch Indexing
Adjusts the extend stroke by up to 50 mm on-site to tune the pitch of parts feeding into a machining center without swapping cylinders.
Sorting Diverter Setup
Allows field stroke tuning of the 150 mm extend to accommodate different package sizes on a sorting line, ensuring precise diverting.
Carton Sealing Alignment
Trims the extend stroke on the packaging line to match varying carton heights, providing exact flap folding pressure.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X150-50STC with the SAUJ40X150-50STC
To replace the discontinued SUJ40X150-50STC, specify the direct replacement SAUJ40X150-50STC, which preserves the 40 mm bore, 150 mm nominal stroke, 1/4" port, and TC mounting interface. The 50 mm adjust window is ideal if your extend stroke needs on-site tuning between 100 and 150 mm, avoiding the cost of a fixed SAU plus an external stop. If using the -S magnet, migrate from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X150-50STC
- ✓ 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 SUJ40X150-50STC FAQ
Yes, the SUJ40X150-50STC is discontinued. The direct replacement is the SAUJ40X150-50STC, which matches the 40 mm bore, 150 mm stroke, 1/4" port, and TC mounting. You must upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw offers a 50 mm adjust window, shortening the 150 mm extend stroke down to 100 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X150-50STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X150-50STC replacement — usually within 7-8 hours.