This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X160-40, 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 SUJ50X160-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X160-40 is a double-acting profile-type standard cylinder with a Ø50mm bore and 160mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X160-40, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X160-40
- 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 SUJ50X160-40
The AirTAC SUJ50X160-40 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, giving a usable extend range of 120-160 mm from the 160 mm nominal maximum. The extruded aluminum profile barrel is more compact than an ISO 15552 cylinder of the same bore.
This SUJ model is discontinued and the direct replacement is the SAUJ50X160-40, which retains the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade path moves to current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. Because this specific SKU lacks a magnet, it cannot take a magnetic switch. Note that the stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ50X160-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X160-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X160-40 |
| Bore size | Ø50 mm |
| Stroke | 160 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 SAUJ50X160-40 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 SAUJ50X160-40 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 SUJ50X160-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | 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 SUJ50X160-40 Is Used
Variable Pitch Indexing
Dialing the extend stroke on-site allows a single actuator to feed parts of varying lengths without swapping the cylinder.
Adjustable Transfer Stops
Fine-tune the stop screw to set precise protrusion distances for different product widths on a packaging line.
Multi-Format Diverter Arms
Trim the extend stroke by up to 40 mm on-site to accommodate changing carton sizes without repositioning the mount.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X160-40 with the SAUJ50X160-40
To replace the discontinued SUJ50X160-40, order the direct replacement SAUJ50X160-40; the body, 1/4" port, 40 mm adjust window, and FA/LB mounting are unchanged. Choose the 40 mm adjust window if your fixture needs field stroke tuning between 120 and 160 mm; this often beats machining a custom fixed-stroke cylinder plus an external stop. Because this SKU has no magnet, you cannot mount sensors; if sensing is required, select an SAUJ-S variant and use CMSG/DMSG/EMSG switches instead of the old CS1-B/DS1-B. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X160-40
- ✓ 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 SUJ50X160-40 FAQ
Yes, the SUJ50X160-40 is discontinued. The direct replacement is the SAUJ50X160-40, which matches the 50 mm bore, 160 mm stroke, 40 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors, whereas this SUJ used legacy CS1-B/DS1-B switches.
The external stop screw provides a 40 mm adjust window, allowing the extend stroke to be shortened from 160 mm down to 120 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X160-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X160-40 replacement — usually within 7-8 hours.