This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ80X500-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ80X500-40 in place of this model. 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 SUJ80X500-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-40 is a double-acting profile-type standard cylinder with a Ø80mm bore and 500mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ80X500-40, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-40
About the Airtac SUJ Adjustable Cylinder SUJ80X500-40
The AirTAC SUJ80X500-40 is a double-acting single-rod profile cylinder with an adjustable stroke, letting you trim the extend stroke by up to 40 mm on-site for a usable 460-500 mm window. This discontinued unit delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa. It features a 3/8 inch port, an M20x1.5 rod thread, and 28 mm adjustable cushions. The exact drop-in replacement is the SAUJ80X500-40, matching the bore, stroke, force, and mounting.
For sizing, a safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. The external stop screw sets the end position but is not a load lock; use an external rod lock for held loads. Upgrading to the SAUJ switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. Because this SKU lacks a magnet, it cannot take a switch. At 500 mm, add external guides to prevent rod bending.
Airtac SUJ Adjustable Cylinder SUJ80X500-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-40 |
| Bore size | Ø80 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ80X500-40 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAUJ80X500-40 produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ80X500-40
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 80 | 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 SUJ80X500-40 Is Used
Variable Length Ejector
Tuning the extend stroke by up to 40 mm on-site allows an ejection pin to hit different material lengths without swapping the entire cylinder.
Adjustable Transfer Stop
A 460-500 mm extend window lets an operator manually dial in the exact stopping position for mixed-size cartons on a packaging line.
Custom Height Diverter
Field-trimming the extend stroke permits a diverter arm to reach varying conveyor lane depths without re-engineering the fixed mounting points.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-40 with the SAUJ80X500-40
To replace the discontinued SUJ80X500-40, order the drop-in SAUJ80X500-40, which retains the 3/8 inch port, 28 mm cushions, and FA/LB mounting. If re-sizing, the adjacent 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 40 mm adjust window if you need precise 460-500 mm extend tuning. This non-magnetic SKU cannot accept sensors, but the SAUJ upgrade supports CMSG/DMSG/EMSG switches. For the 500 mm stroke, support the load with external guides to minimize side-load and rod bending. The stop screw sets end position only; add an external rod lock for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-40
- ✓ 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 SUJ80X500-40 FAQ
Yes, the SUJ80X500-40 is discontinued. The exact drop-in replacement is the SAUJ80X500-40, matching the 80 mm bore, 500 mm stroke, 3/8 inch port, and FA/LB mounting. The SAUJ also upgrades the sensor track to accept current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa. The external stop screw offers a 40 mm adjust window, making the usable extend stroke 460-500 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ80X500-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ80X500-40 replacement — usually within 7-8 hours.