This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X225-50, 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 SUJ100X225-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X225-50 is a double-acting profile-type standard cylinder with a Ø100mm bore and 225mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X225-50, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke225 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X225-50
- 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 SUJ100X225-50
The AirTAC SUJ100X225-50 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 175-225 mm extension out of the 225 mm nominal maximum. Built with an extruded aluminum profile barrel, it is noticeably shorter than an ISO 15552 cylinder of the same 100 mm bore. It features a 25 mm rod, M20x1.5 rod thread, and a 1/2" port.
This SUJ model is DISCONTINUED. The direct replacement is the SAUJ100X225-50, which matches the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade shifts sensing to current CMSG/DMSG/EMSG sensors, as this legacy unit used CS1-B/DS1-B switches. As this 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; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X225-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X225-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X225-50 |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAUJ100X225-50 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 SAUJ100X225-50 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 SUJ100X225-50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SUJ100X225-50 Is Used
Press Fit Tuning
Allows operators to dial in the exact 175-225 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke on a sorting lane to accommodate different package sizes on the fly using the 50 mm trim window.
Adjustable Height Stop
Sets precise mechanical end positions for palletizing fixtures where the final extend point varies by pallet load.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X225-50 with the SAUJ100X225-50
To replace the discontinued SUJ100X225-50, order the direct replacement SAUJ100X225-50, which preserves the 100 mm bore, 225 mm nominal stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 50 mm adjust window if your fixture requires precise on-site extend tuning between 175 mm and 225 mm. Because this specific SKU has no magnet, it cannot support sensing; if sensing is needed, select an SAUJ with the -S suffix and use CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify side-load limits to prevent rod bearing wear. The external stop screw sets the end position but does not lock the load; maintain live air or add an external rod lock for vertical holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X225-50
- ✓ 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 SUJ100X225-50 FAQ
Yes, the SUJ100X225-50 is discontinued. The direct replacement is the SAUJ100X225-50, offering the same 100 mm bore, 225 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting.
The external stop screw provides a 50 mm adjust window, allowing the extend stroke to be shortened from 225 mm down to 175 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X225-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X225-50 replacement — usually within 7-8 hours.