This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X275-100, 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 SUJ40X275-100
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X275-100 is a double-acting profile-type standard cylinder with a Ø40mm bore and 275mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X275-100, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke275 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X275-100
- 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 SUJ40X275-100
The AirTAC SUJ40X275-100 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 175-275 mm extend window from the 275 mm nominal maximum. The stop sets the end position but is not a load lock; use an external rod lock for held loads.
The direct replacement is the SAUJ40X275-100, matching the bore, stroke, force, port, and FA/LB mounting. This non-magnetic SKU cannot take a switch, whereas upgrading to the SAUJ enables current CMSG/DMSG/EMSG sensors (this SUJ used legacy CS1-B/DS1-B).
Airtac SUJ Adjustable Cylinder SUJ40X275-100 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X275-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X275-100 |
| Bore size | Ø40 mm |
| Stroke | 275 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 SAUJ40X275-100 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 SAUJ40X275-100 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 SUJ40X275-100
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×275 | 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 SUJ40X275-100 Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning from 175 to 275 mm to alter part pitch without machining a new cylinder length.
Adjustable Diverter Gate
Sets the precise push distance for diverting varying package widths on a line, using the 100 mm stop screw to trim the extend.
Dynamic Pusher Stops
Provides field-adjustable end positions for product pushers that must reconfigure quickly for different carton depths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X275-100 with the SAUJ40X275-100
To replace the discontinued SUJ40X275-100, order the direct replacement SAUJ40X275-100, which preserves the 40 mm bore, 275 mm stroke, 1/4" port, and FA/LB mounting. Choose the 100 mm adjust window if your mechanism needs on-site extend tuning from 175 to 275 mm. Because this specific SKU lacks a magnet, it cannot accept a sensor; upgrading to the SAUJ with the -S option enables current CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify your side-load guide geometry to prevent rod bearing wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X275-100
- ✓ 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 SUJ40X275-100 FAQ
Yes, the SUJ40X275-100 is discontinued. The direct replacement is the SAUJ40X275-100, which matches the 40 mm bore, 275 mm stroke, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw allows you to trim the extend stroke by up to 100 mm on-site, giving a usable 175-275 mm window. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X275-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X275-100 replacement — usually within 7-8 hours.