This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X160-50, 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 SUJ40X160-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X160-50 is a double-acting profile-type standard cylinder with a Ø40mm bore and 160mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X160-50, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X160-50
- 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 SUJ40X160-50
The AirTAC SUJ40X160-50 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 110-160 mm stroke from the 160 mm nominal maximum. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore. It uses a 1/4" port and a 16 mm rod with an M12x1.25 thread.
This SUJ model is discontinued and the direct replacement is the SAUJ40X160-50, which matches the bore, stroke, force, port, and FA/LB mounting. For engineering gains, the SAUJ upgrades sensing to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B, and offers the SAUF built-in-valve variant the SU line lacked. Note this SKU has no magnet and cannot take a switch.
Airtac SUJ Adjustable Cylinder SUJ40X160-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X160-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X160-50 |
| Bore size | Ø40 mm |
| Stroke | 160 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 SAUJ40X160-50 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 SAUJ40X160-50 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 SUJ40X160-50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 SUJ40X160-50 Is Used
Variable Depth Boring
Trimming the extend stroke by up to 50 mm on-site allows precise depth control for boring heads that must adapt to different material thicknesses without changing the entire actuator.
Adjustable Transfer Pushers
Field-tuning the extend end position lets a transfer pusher accommodate varying package sizes on a single line, using the external stop screw to set the exact ejection distance.
Variable Stroke Sealing
Sealing stations that process containers of different heights benefit from the 110-160 mm usable stroke window, allowing operators to dial in the exact downward travel needed for a consistent seal.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X160-50 with the SAUJ40X160-50
To replace the discontinued SUJ40X160-50, order the direct replacement SAUJ40X160-50, which preserves the 40 mm bore, 160 mm stroke, 50 mm adjust window, 1/4" port, and SC-series FA/LB mounting. Choose the 50 mm adjust window when you need precise field tuning of the extend end position; the external stop screw shortens the stroke on-site but is not a load lock. Because this specific SKU lacks a magnet, it cannot support sensing; if you need position feedback, select an -S SAUJ variant using CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For stroke lengths of 300 mm or greater, verify side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X160-50
- ✓ 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 SUJ40X160-50 FAQ
Yes, the SUJ40X160-50 is discontinued. The direct replacement is the SAUJ40X160-50, which matches the 40 mm bore, 160 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.
The external stop screw provides a 50 mm adjust window, allowing you to shorten the extend stroke from the 160 mm nominal maximum down to 110 mm on-site. The stop sets the end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X160-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X160-50 replacement — usually within 7-8 hours.