This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-20, 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 SUJ100X250-20
The AirTAC SUJ Adjustable Cylinder SUJ100X250-20 is a double-acting profile-type standard cylinder with a Ø100mm bore and 250mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X250-20, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-20
- 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 SUJ100X250-20
The AirTAC SUJ100X250-20 is a discontinued 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 230 to 250 mm extend range from the 250 mm nominal maximum. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions. The direct replacement is the SAUJ100X250-20, sharing the same bore, stroke, force, port, and FA/LB mounting.
Two key upgrade notes: the SAUJ successor uses current CMSG/DMSG/EMSG sensors whereas this legacy unit used CS1-B/DS1-B switches, and the SAU family adds an SAUF built-in-valve variant the SU line lacked. Remember 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 SUJ100X250-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-20 |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAUJ100X250-20 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 SAUJ100X250-20 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 SUJ100X250-20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SUJ100X250-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 230 to 250 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 Positioning
Fine-tunes the end position of a pallet stop gate in real-time as pallet heights or transfer requirements change.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-20 with the SAUJ100X250-20
To replace the discontinued SUJ100X250-20, order the SAUJ100X250-20 (insert A after S). The -20 mm adjust window allows field trimming of the extend stroke down to 230 mm; choose a larger window if you need deeper shortening. Because this SKU lacks a magnet, it cannot take a switch; the SAUJ -S variant adds sensing via CMSG/DMSG/EMSG sensors (replacing legacy CS1-B/DS1-B). For strokes >=300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-20
- ✓ 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 SUJ100X250-20 FAQ
Yes, the SUJ100X250-20 is discontinued. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw provides a 20 mm adjust window, allowing you to trim the extend stroke from 250 mm down to 230 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X250-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-20 replacement — usually within 7-8 hours.