This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X300-100S, 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 SUJ40X300-100S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X300-100S is a double-acting profile-type standard cylinder with a Ø40mm bore and 300mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X300-100S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke300 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X300-100S
- 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 SUJ40X300-100S
The AirTAC SUJ40X300-100S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 200-300 mm extension from the 300 mm nominal maximum. This unit is discontinued; the direct replacement is the SAUJ40X300-100S, which retains the bore, stroke, force, port, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. Because stroke is 300 mm, mind side-load and rod-bending—use external guides. The -S suffix means a piston magnet for legacy CS1-B/DS1-B sensors; the SAUJ upgrade uses current CMSG/DMSG/EMSG sensors.
Airtac SUJ Adjustable Cylinder SUJ40X300-100S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X300-100S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X300-100S |
| Bore size | Ø40 mm |
| Stroke | 300 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 SAUJ40X300-100S 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 SAUJ40X300-100S 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 SUJ40X300-100S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 SUJ40X300-100S Is Used
Variable Stroke Clamping
Adjusts the extend stroke on-site to clamp parts of varying widths without swapping cylinders.
Adjustable Diverter Arms
Tunes the pusher extension length precisely to divert different box sizes on a packaging line.
Variable Depth Insertion
Trims the extend stroke to set precise insertion depths for parts loaded into varying carton depths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X300-100S with the SAUJ40X300-100S
To replace this discontinued model, specify SAUJ40X300-100S for an direct match (bore, stroke, 100 mm adjust window, 1/4" port, FA/LB mounting). Choose the 100 mm adjust window when you need field-tuning of the extend stroke from 200 to 300 mm. The -S suffix on the original used CS1-B/DS1-B sensors; the SAUJ replacement requires CMSG/DMSG/EMSG switches. Because the 300 mm stroke invites rod-bending, ensure external guides handle side loads. The external stop sets end position only; it is not a lock, so add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X300-100S
- ✓ 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 SUJ40X300-100S FAQ
Yes, the SUJ40X300-100S is discontinued. The direct replacement is the SAUJ40X300-100S, matching the 40 mm bore, 300 mm stroke, 100 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 window is 100 mm, allowing you to trim the extend stroke from 300 mm down to 200 mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X300-100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X300-100S replacement — usually within 7-8 hours.