This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X175-20S, 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 SUJ100X175-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X175-20S is a double-acting profile-type standard cylinder with a Ø100mm bore and 175mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X175-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke175 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X175-20S
- 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 SUJ100X175-20S
The AirTAC SUJ100X175-20S 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 155-175 mm extend range from the 175 mm nominal maximum. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable cushions absorb heavy end-of-travel kinetic energy.
This SUJ unit is discontinued; the direct replacement is the SAUJ100X175-20S, retaining the same bore, stroke, force, and SC-series FA/LB mounting. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors; the SAUJ successor upgrades to current CMSG/DMSG/EMSG switches. Note the stop screw sets end position only—it is not a load lock, so add an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X175-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X175-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X175-20S |
| Bore size | Ø100 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X175-20S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X175-20S 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 SUJ100X175-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SUJ100X175-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 155-175 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke by up to 20 mm to accommodate different package sizes on a sorting line without swapping cylinders.
Pallet Stop Calibration
Fine-tunes the end position to align pallets precisely against a fixture, compensating for minor mechanical drift over time.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X175-20S with the SAUJ100X175-20S
To replace the discontinued SUJ100X175-20S, order the SAUJ100X175-20S; it is a direct match for bore, stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. Select the 20 mm adjust window if your mechanism needs field tuning of the extend end position within a 155-175 mm range. Because this model has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAUJ. For stroke lengths of 300 mm or greater, verify your side-load limits to prevent guide wear. The stop screw trims stroke but does not lock the load—specify an external rod lock for vertical or held-load safety.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X175-20S
- ✓ 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 SUJ100X175-20S FAQ
Yes, the AirTAC SUJ100X175-20S is discontinued. The direct replacement is the SAUJ100X175-20S. It matches the 100 mm bore, 175 mm stroke, 20 mm adjust window, 1/2" 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 adjust window, shortening the extend stroke from the 175 mm maximum down to 155 mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X175-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X175-20S replacement — usually within 7-8 hours.