This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ80X500-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ80X500-50 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 SUJ80X500-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-50 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 SAUJ80X500-50, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-50
About the Airtac SUJ Adjustable Cylinder SUJ80X500-50
The AirTAC SUJ80X500-50 is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 450-500 mm stroke out of the 500 mm nominal maximum. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa. It features a 25 mm rod, M20x1.5 rod thread, 28 mm adjustable air cushions, and a 3/8" port.
This SUJ unit is discontinued; the exact drop-in replacement is the SAUJ80X500-50, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. For sizing, the 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. Note this non-magnet SKU cannot take a switch, and the stop screw sets end position—it is not a load lock.
Airtac SUJ Adjustable Cylinder SUJ80X500-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-50 |
| 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 SAUJ80X500-50 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 SAUJ80X500-50 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 SUJ80X500-50
| 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 SUJ80X500-50 Is Used
Variable-Length Ejector
Tuning the extend stroke by up to 50 mm on-site allows an ejection station to handle mixed part lengths without swapping the entire cylinder.
Adjustable Transfer Stop
The 450-500 mm usable stroke provides a field-adjustable hard stop for diverter gates on a conveyor, letting operators change the end position quickly.
Variable-Height Pallet Stop
Trimming the extend stroke by up to 50 mm accommodates different pallet stack heights at the end of a packaging line without reprogramming the PLC.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-50 with the SAUJ80X500-50
To replace the discontinued SUJ80X500-50, order the drop-in SAUJ80X500-50, which preserves the 80 mm bore, 500 mm max stroke, 50 mm adjust window, 3/8" port, and FA/LB mounting. When sizing, the 0.5 MPa push yields a safe working load of roughly 1508 N (about 60% of 2513 N); if you need more force, step up to the 100 mm bore, or drop to the 63 mm bore (1559 N push at 0.5 MPa) if the load is lighter. Choose the 50 mm adjust window when you need precise field tuning of the extend stroke; the stop screw sets the end position but is not a load lock—use an external rod lock for held loads. Because this is a non-magnet SKU, it cannot accept a sensor; if sensing is required, specify the -S version on the SAUJ and migrate to CMSG/DMSG/EMSG sensors. Finally, at 500 mm stroke, mind the side-load and rod-bending limits—use external guides to prevent premature seal wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-50
- ✓ 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 SUJ80X500-50 FAQ
Yes, the SUJ80X500-50 is discontinued. The exact drop-in replacement is the SAUJ80X500-50, which matches the 80 mm bore, 500 mm stroke, 50 mm adjust window, 3/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
This double-acting single-rod cylinder has a 50 mm adjust window (usable extend stroke 450-500 mm). Force output is 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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw sets the end position but is not a load lock.
Related AirTAC SAU Cylinders
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