This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X160-20S, 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 SUJ50X160-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X160-20S 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 SAUJ50X160-20S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X160-20S
- 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 SUJ50X160-20S
The AirTAC SUJ50X160-20S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 140-160 mm extend range from the 160 mm nominal maximum. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
This SUJ50X160-20S unit is discontinued; the direct replacement is the SAUJ50X160-20S, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used here.
Airtac SUJ Adjustable Cylinder SUJ50X160-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X160-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X160-20S |
| 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 SAUJ50X160-20S 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 SAUJ50X160-20S 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 SUJ50X160-20S
| 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 SUJ50X160-20S Is Used
Custom End-Position Clamping
Allows operators to dial in the exact 140-160 mm extend point on-site for clamping parts of varying widths without swapping out the entire actuator.
Adjustable Transfer Diverter
Provides a tunable push-off stroke for diverting packages of differing sizes on a conveyor line, ensuring gentle contact without reprogramming the motion controller.
Variable-Depth Pallet Stops
Enables quick mechanical adjustment of the stopping depth for pallets or trays of varying heights in a compact profile-body assembly.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X160-20S with the SAUJ50X160-20S
To replace the discontinued SUJ50X160-20S, specify the SAUJ50X160-20S direct: it preserves the 50 mm bore, 160 mm stroke, 20 mm adjust window, 1/4" port, and FA/LB mounting. The 20 mm adjust window is ideal when final extend positioning needs field tuning rather than machining custom spacers. Because this is an -S model, migrate position sensing from the legacy CS1-B/DS1-B to the modern CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X160-20S
- ✓ 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 SUJ50X160-20S FAQ
Yes, the SUJ50X160-20S is discontinued. The direct replacement is the SAUJ50X160-20S, which matches the 50 mm bore, 160 mm nominal stroke, 20 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 switches.
The external stop screw offers a 20 mm adjustment window, allowing you to shorten the 160 mm maximum extend stroke down to 140 mm on-site. The stop sets end position only; it does not lock the load.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X160-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X160-20S replacement — usually within 7-8 hours.