This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X100-30S, 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 SUJ40X100-30S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X100-30S is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X100-30S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X100-30S
- 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 SUJ40X100-30S
The AirTAC SUJ40X100-30S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 70-100 mm stroke out of the 100 mm nominal maximum. The direct replacement is the SAUJ40X100-30S, matching the bore, stroke, force, and mounting.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The SAUJ upgrade retains the SC-series FA/LB mounts but switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ40X100-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X100-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X100-30S |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X100-30S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X100-30S 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 SUJ40X100-30S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 SUJ40X100-30S Is Used
Diverter Gate Positioning
Allows operators to fine-tune the 70-100 mm extend stroke on-site to perfectly seat a diverter gate without machining spacers.
Variable-Length Product Stops
Provides a field-adjustable hard stop for different package lengths on a conveyor line, trimming the extend stroke up to 30 mm.
Clamp Stroke Calibration
Enables precise 30 mm stroke reduction to calibrate clamping pressure against delicate parts without reprogramming the PLC.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X100-30S with the SAUJ40X100-30S
To replace the SUJ40X100-30S, order the direct replacement SAUJ40X100-30S, which preserves the 40 mm bore, 100 mm stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 30 mm adjust window if you need precise field tuning of the extend stroke within a 70-100 mm range. Because this is an -S model, note that the SAUJ replacement requires current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X100-30S
- ✓ 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 SUJ40X100-30S FAQ
Yes, the SUJ40X100-30S is discontinued. The direct replacement is the SAUJ40X100-30S, which matches the 40 mm bore, 100 mm nominal stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw allows you to trim the extend stroke by up to 30 mm on-site, giving a usable stroke range of 70-100 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X100-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X100-30S replacement — usually within 7-8 hours.