This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ100X125-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ100X125-40S 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 SUJ100X125-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X125-40S 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 SAUJ100X125-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke125 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X125-40S
About the Airtac SUJ Adjustable Cylinder SUJ100X125-40S
The AirTAC SUJ100X125-40S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 85-125 mm extend window from the 125 mm nominal maximum. The 100 mm bore generates 3927 N push and 3681 N pull at 0.5 MPa, rising to 7068 N push at 0.9 MPa. It features a 25 mm rod, M20x1.5 rod thread, 29 mm adjustable cushions, and a 1/2" port.
This unit is discontinued; the exact drop-in replacement is the SAUJ100X125-40S, sharing the same bore, stroke, force, port, and FA/LB mounting. Two upgrade notes: the SAUJ moves to current CMSG/DMSG/EMSG sensors (this SUJ used legacy CS1-B/DS1-B switches for its -S magnet), and the SAU line adds the SAUF built-in-valve variant. 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 SUJ100X125-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X125-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X125-40S |
| 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 SAUJ100X125-40S 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 SAUJ100X125-40S 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 SUJ100X125-40S
| 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 SUJ100X125-40S Is Used
Variable-Length Clamping
Adjusts the extend stroke on-site to clamp parts of varying heights without repositioning the entire cylinder assembly.
Variable Stop Positioning
Trims the extend stroke by up to 40 mm to act as an adjustable end-stop for different product lengths on a conveyor line.
Variable Depth Diverter
Tunes the extend stroke to divert packages of varying depths into specific sorting lanes without changing the base mount.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X125-40S with the SAUJ100X125-40S
To replace the discontinued SUJ100X125-40S, specify the SAUJ100X125-40S, which matches the 100 mm bore, 125 mm nominal stroke, 1/2" port, and FA/LB mounting. When sizing, the 80 mm neighbour bore provides 2513 N push at 0.5 MPa, while the 100 mm bore offers 3927 N, so verify your safe working load of 2356 N fits. The -40 adjust window lets you trim the extend stroke by up to 40 mm on-site, which often beats installing a fixed-stroke SAU plus an external stop block. Retain the -S magnet option but switch from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X125-40S
- ✓ 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 SUJ100X125-40S FAQ
Yes, the SUJ100X125-40S is discontinued. The exact drop-in replacement is the SAUJ100X125-40S, which shares the same 100 mm bore, 125 mm stroke, 1/2" port, and FA/LB mounting. You only need to upgrade the sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
The 100 mm bore provides 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa, with a theoretical max of 801 kgf at 1.0 MPa. The external stop screw provides a 40 mm adjust window, allowing you to shorten the 125 mm nominal extend stroke down to 85 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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