This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X150-50, 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 SUJ40X150-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X150-50 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 SAUJ40X150-50, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X150-50
- 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 SUJ40X150-50
The AirTAC SUJ40X150-50 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 extension from the 150 mm nominal maximum. The extruded aluminum profile barrel is notably shorter than a standard ISO 15552 unit of the same bore. This 40 mm bore version features a 16 mm rod, M12x1.25 rod thread, and a 1/4" port.
This SUJ model is discontinued; the direct replacement is the SAUJ40X150-50, matching the bore, stroke, force, port, and FA/LB mounting. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X150-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X150-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X150-50 |
| 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 SAUJ40X150-50 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 SAUJ40X150-50 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 SUJ40X150-50
| 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 SUJ40X150-50 Is Used
Variable Depth Boring
Machine tools needing field stroke tuning to set precise boring depths between 100 mm and 150 mm without swapping the entire cylinder.
Adjustable Diverter Arms
Sorting lines where diverter arms require on-site extend stroke trims of up to 50 mm to accommodate changing package sizes on the fly.
Custom Positioning Stops
Warehousing fixtures that use the external stop screw to dial in exact end positions for varying pallet heights during loading.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X150-50 with the SAUJ40X150-50
To replace the discontinued SUJ40X150-50, order the direct replacement SAUJ40X150-50, which preserves the 40 mm bore, 150 mm stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 50 mm adjust window if your fixture requires field tuning the extend stroke down to 100 mm. Because this SKU lacks a magnet (-S), it cannot take a magnetic switch; the SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X150-50
- ✓ 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 SUJ40X150-50 FAQ
Yes, the SUJ40X150-50 is discontinued. The direct replacement is the SAUJ40X150-50, which matches the 40 mm bore, 150 mm stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
This double-acting double-rod cylinder has a 50 mm adjust window, allowing you to shorten the extend stroke from 150 mm down to 100 mm. The stop screw sets end position but does not lock the load.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X150-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X150-50 replacement — usually within 7-8 hours.