This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X100-30, 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 SUJ40X100-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X100-30 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 SAUJ40X100-30, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X100-30
- 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 SUJ40X100-30
The AirTAC SUJ40X100-30 is a double-acting, double-rod adjustable-stroke profile cylinder. This discontinued unit features an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 70-100 mm extend window from the 100 mm nominal maximum. The extruded aluminum profile barrel is notably shorter than an ISO 15552 cylinder of the same bore.
As the SUJ line is end-of-life, the direct replacement is the SAUJ40X100-30, matching the bore, stroke, 30 mm adjust window, force, and FA/LB mounting. The SAUJ upgrade transitions to current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. Because this specific SKU lacks a magnet, it cannot take a magnetic switch. Note that the stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, requiring an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X100-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X100-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X100-30 |
| 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 SAUJ40X100-30 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 SAUJ40X100-30 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 SUJ40X100-30
| 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 SUJ40X100-30 Is Used
Variable Depth Drilling
Adjusting the extend stroke on-site by up to 30 mm allows a drill head to hit exact depths across multiple material thicknesses without swapping cylinders.
Dynamic Package Diverting
Trimming the extend stroke from 100 mm down to 70 mm accommodates varying carton widths on a packaging line, ensuring precise pusher positioning.
Adjustable Stop Fences
Tuning the extend end position on-site lets a sorting gate handle different pallet sizes, providing flexible physical stops without mechanical spacers.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X100-30 with the SAUJ40X100-30
To replace the discontinued SUJ40X100-30, order the direct replacement SAUJ40X100-30, which preserves the 40 mm bore, 100 mm nominal stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. Choose the 30 mm adjust window when you need precise 70-100 mm extend tuning on-site, which often beats installing a fixed-stroke SAU plus an external stop. Because this SKU has no magnet, it cannot support sensing; the SAUJ upgrade requires current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Mounting is compatible with the AirTAC SC series only. For any stroke over 300 mm, carefully verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X100-30
- ✓ 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 SUJ40X100-30 FAQ
Yes, the SUJ40X100-30 is discontinued. The direct replacement is the SAUJ40X100-30, which matches the 40 mm bore, 100 mm 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 lets you trim the extend stroke by up to 30 mm on-site, yielding a 70-100 mm usable window. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X100-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X100-30 replacement — usually within 7-8 hours.