This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X400-75S, 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 SUJ100X400-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X400-75S is a double-acting profile-type standard cylinder with a Ø100mm bore and 400mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X400-75S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke400 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X400-75S
- 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 SUJ100X400-75S
The AirTAC SUJ100X400-75S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 325-400 mm stroke from the 400 mm nominal maximum. It features a 1/2" port, a Ø25 mm rod, and 29 mm adjustable cushions.
The direct replacement is the SAUJ100X400-75S, matching the bore, stroke, 1/2" port, and FA/LB mounting. Upgrading to the SAUJ allows the use of current CMSG/DMSG/EMSG sensors, as this legacy -S model used CS1-B/DS1-B switches. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X400-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X400-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X400-75S |
| Bore size | Ø100 mm |
| Stroke | 400 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 SAUJ100X400-75S 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 SAUJ100X400-75S 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 SUJ100X400-75S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 SUJ100X400-75S Is Used
Variable Press Stroke
Set precise 325-400 mm extend endpoints on-site for pressing operations without machining custom spacers.
Adjustable Diverter
Tune the 75 mm stop window to deflect varying package sizes on a line without swapping the cylinder.
Custom End Positioning
Dial in the exact extend stop for packaging pushes where the nominal 400 mm stroke requires in-field trimming.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X400-75S with the SAUJ100X400-75S
To replace the discontinued SUJ100X400-75S, order the direct replacement SAUJ100X400-75S, which preserves the 100 mm bore, 400 mm nominal stroke, 1/2" port, and FA/LB mounting. The 75 mm adjust window is ideal when final extend position must be set in the field, beating a fixed SAU plus external stop. Because this -S model has a piston magnet, note the sensor change from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG. For the 400 mm stroke, support side loads with external guides to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X400-75S
- ✓ 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 SUJ100X400-75S FAQ
Yes, it is discontinued. The direct replacement is the SAUJ100X400-75S, matching the 100 mm bore, 400 mm stroke, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches on this -S model.
The double-acting double-rod cylinder pushes 3927 N at 0.5 MPa (5497 N at 0.7 MPa, 7068 N at 0.9 MPa) and pulls 3681 N at 0.5 MPa, with a theoretical max of 801 kgf. The external stop screw trims the extend stroke by up to 75 mm on-site, giving a usable 325-400 mm stroke. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X400-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X400-75S replacement — usually within 7-8 hours.