This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ80X500-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ80X500-50S 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 SUJ80X500-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ80X500-50S 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 SAUJ80X500-50S, which matches its bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ80X500-50S
About the Airtac SUJ Adjustable Cylinder SUJ80X500-50S
The AirTAC SUJ80X500-50S 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. The 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 discontinued model is fully replaced by the drop-in SAUJ80X500-50S, which retains the exact bore, stroke, force, port, and FA/LB mounting. The upgrade path moves sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. 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 stop screw sets end position only; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ80X500-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ80X500-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ80X500-50S |
| 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 SAUJ80X500-50S 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 SAUJ80X500-50S 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 SUJ80X500-50S
| 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 SUJ80X500-50S Is Used
Variable-Length Ejector
Tuning the extend stroke by up to 50 mm on-site allows an ejection probe to hit different material thicknesses without swapping the entire cylinder.
Adjustable Transfer Stop
A 500 mm extend stroke that can be mechanically shortened to 450 mm provides a precise, rigid end-stop for varying package sizes on a transfer line.
Variable-Depth Palletiser
Trimming the extend stroke on-site lets a 80 mm bore cylinder adapt to different pallet depths while delivering 2513 N of push force at 0.5 MPa.
Replacing the Airtac SUJ Adjustable Cylinder SUJ80X500-50S with the SAUJ80X500-50S
To replace the discontinued SUJ80X500-50S, order the exact drop-in SAUJ80X500-50S, keeping the 80 mm bore, 500 mm nominal stroke, 50 mm adjust window, 3/8" port, and FA/LB mounting. If re-sizing, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the -50 mm adjust window when you need on-site extend tuning up to 50 mm; the SAUJ beats a fixed SAU plus external stop by integrating the screw cleanly. Because this model has an -S magnet, swap the legacy CS1-B/DS1-B sensors for CMSG/DMSG/EMSG switches. At 500 mm stroke, support the rod to prevent bending and use external guides to manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ80X500-50S
- ✓ 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 SUJ80X500-50S FAQ
Yes, the SUJ80X500-50S is discontinued. The exact drop-in replacement is the SAUJ80X500-50S, which matches the 80 mm bore, 500 mm stroke, 50 mm adjust window, 3/8" port, and FA/LB mounting. You only need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The 80 mm bore single-rod cylinder 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, with a theoretical max of 513 kgf. The external stop screw window is 50 mm, allowing you to mechanically shorten the 500 mm extend stroke down to 450 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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