This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X500-30, 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 SUJ40X500-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X500-30 is a double-acting profile-type standard cylinder with a Ø40mm bore and 500mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X500-30, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke500 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X500-30
- 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 SUJ40X500-30
The AirTAC SUJ40X500-30 is a double-acting double-rod profile cylinder with a 40mm bore and 500mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 470-500mm stroke. The SUJ series is discontinued; the direct replacement is the SAUJ40X500-30, matching the bore, stroke, force, and SC-series mounting.
This SKU lacks a magnet and cannot take a switch. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. The stop screw sets end position but is not a load lock; use an external rod lock for held loads. At 500mm, add external guides to prevent rod bending.
Airtac SUJ Adjustable Cylinder SUJ40X500-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X500-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X500-30 |
| Bore size | Ø40 mm |
| Stroke | 500 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 SAUJ40X500-30 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 SAUJ40X500-30 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 SUJ40X500-30
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 SUJ40X500-30 Is Used
Adjustable End-Stop Machining
Dialing in the exact 470-500mm extend position on-site for a machining fixture without machining hard stops.
Variable Length Diverter
Tuning a pusher arm's extend stroke by up to 30mm to accommodate changing package lengths on a line.
Calibrated Sorting Gate
Field-adjusting the extend end-point to reroute items of varying dimensions into specific lanes.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X500-30 with the SAUJ40X500-30
Replace the discontinued SUJ40X500-30 directly with the SAUJ40X500-30, retaining the 40mm bore, 500mm max stroke, 30mm adjust window, 1/4" port, and FA/LB mounting. Choose the 30mm adjust window when you need precise 470-500mm field tuning. This non-magnetic SKU cannot take sensors; the SAUJ accepts CMSG/DMSG/EMSG switches. For the 500mm stroke, use external guides to manage side-load and rod-bending. The stop screw sets end position and is not a lock—add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X500-30
- ✓ 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 SUJ40X500-30 FAQ
Yes, the SUJ40X500-30 is discontinued. The direct replacement is the SAUJ40X500-30, which matches the 40mm bore, 500mm stroke, 30mm adjust window, 1/4" port, and FA/LB mounting.
The external stop screw trims the extend stroke by up to 30mm (usable 470-500mm). It is double-acting double-rod with a 1/4" port.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X500-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X500-30 replacement — usually within 7-8 hours.