This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X500-20S, 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 SUJ100X500-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X500-20S is a double-acting profile-type standard cylinder with a Ø100mm bore and 500mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X500-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X500-20S
- 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 SUJ100X500-20S
The AirTAC SUJ100X500-20S is a discontinued double-acting double-rod profile cylinder with a 100 mm bore, 500 mm maximum stroke, and a 1/2" port. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 480-500 mm end position. This compact aluminum barrel is notably shorter than an ISO 15552 cylinder of the same bore. A built-in magnet works with legacy CS1-B/DS1-B switches.
This unit is discontinued; the direct replacement is the SAUJ100X500-20S, matching the bore, stroke, 20 mm adjust window, force, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X500-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X500-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X500-20S |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAUJ100X500-20S 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 SAUJ100X500-20S 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 SUJ100X500-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SUJ100X500-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 480-500 mm extend position on-site for pressing bearings, compensating for material thickness variations without swapping cylinders.
Variable Length Diverter
Adjusts the extend stop to deflect different package sizes on a conveyor line, providing precise routing without reprogramming fixed hardstops.
Adjustable End Stop
Sets a precise mechanical end position for pallet positioning fixtures, trimming the 500 mm stroke by up to 20 mm to accommodate varied pallet dimensions.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X500-20S with the SAUJ100X500-20S
To replace the discontinued SUJ100X500-20S, order the direct replacement SAUJ100X500-20S, which preserves the 100 mm bore, 500 mm nominal stroke, 1/2" port, M20x1.5 rod thread, and FA/LB mounting. The 20 mm adjust window allows field tuning of the extend stroke down to 480 mm without needing a custom cylinder. Because the -S suffix denotes a piston magnet, you must migrate from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensors used on the SAUJ. For this 500 mm stroke, verify side-load limits and use external guides to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X500-20S
- ✓ 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 SUJ100X500-20S FAQ
Yes, the SUJ100X500-20S is discontinued. The direct replacement is the SAUJ100X500-20S. It matches the 100 mm bore, 500 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The theoretical max is 801 kgf at 1.0 MPa. The external stop screw window is 20 mm, meaning you can shorten the 500 mm extend stroke down to 480 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X500-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X500-20S replacement — usually within 7-8 hours.