This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X125-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X125-20S in place of this model. 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 SUJ100X125-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X125-20S is a double-acting profile-type standard cylinder with a Ø100mm bore and 125mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ100X125-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X125-20S
About the Airtac SUJ Adjustable Cylinder SUJ100X125-20S
The AirTAC SUJ100X125-20S is a double-acting single-rod profile cylinder with an on-site stroke-trim window. An external stop screw lets you shorten the extend stroke by up to 20 mm, giving a usable 105-125 mm range from the 125 mm nominal maximum. The 100 mm bore delivers 3927 N push and 3681 N pull at 0.5 MPa, peaking at 7068 N push at 0.9 MPa. It features a 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions.
This SUJ unit is discontinued; the exact drop-in replacement is the SAUJ100X125-20S, sharing the same bore, stroke, force, and FA/LB mounting. The SAUJ upgrade path uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model. For sizing, a safe working load is roughly 2356 N (60% of the 0.5 MPa push), translating to a 200 kg vertical lift with a 2:1 margin. 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 SUJ100X125-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X125-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X125-20S |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAUJ100X125-20S 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 SAUJ100X125-20S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ100X125-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SUJ100X125-20S Is Used
Variable Depth Spotting
Production lines needing precise extend endpoints without swapping cylinders can dial in the 20 mm trim window to set exact probing or spotting depths on the fly.
Adjustable Transfer Stops
Material handling gates that must accommodate varying package sizes use the 105-125 mm usable stroke range to reposition mechanical stops quickly during format changes.
Customizable Clamping Pressure
Workholding fixtures requiring different material thicknesses benefit from the external stop screw to set the final clamping position while maintaining full 7068 N thrust.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X125-20S with the SAUJ100X125-20S
To replace the discontinued SUJ100X125-20S, order the drop-in SAUJ100X125-20S, which preserves the 100 mm bore, 125 mm stroke, 1/2" port, and FA/LB mounting. When sizing both ways, the 80 mm neighbour bore provides 2513 N push at 0.5 MPa, while the 100 mm bore itself yields 3927 N at 0.5 MPa or 5497 N at 0.7 MPa. Choose the 20 mm adjust window if your extend stroke needs field tuning between 105 and 125 mm. Because this model has the -S magnet, you must migrate from legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG switches on the SAUJ. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X125-20S
- ✓ 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 SUJ100X125-20S FAQ
Yes, the SUJ100X125-20S is discontinued. The exact drop-in replacement is the SAUJ100X125-20S. It shares the same 100 mm bore, 125 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. The main upgrade is that the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 100 mm bore has a 1/2" port and delivers 3927 N push / 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa. The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be trimmed from the 125 mm maximum down to 105 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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