This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ32X520-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ32X520-50S 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 SUJ32X520-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X520-50S is a double-acting profile-type standard cylinder with a Ø32mm bore and 520mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ32X520-50S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke520 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X520-50S
About the Airtac SUJ Adjustable Cylinder SUJ32X520-50S
The AirTAC SUJ32X520-50S is a double-acting, single-rod adjustable-stroke profile cylinder. It is DISCONTINUED, with the direct drop-in replacement being the SAUJ32X520-50S. You can trim the extend stroke by up to 50 mm on-site, giving a usable 470-520 mm window out of the 520 mm maximum. The 32 mm bore features a 1/8" port, a Ø12 mm rod, and delivers 402 N push / 345 N pull at 0.5 MPa (724 N push at 0.9 MPa). The SAUJ successor retains the exact bore, stroke, force, and SC-series FA/LB mounting, but upgrades sensing to current CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B used here.
For sizing, a safe working load is roughly 241 N (about 60% of the 402 N push at 0.5 MPa), translating to a vertical lift capacity of approximately 20 kg with a 2:1 margin. The external stop screw sets the precise end position but is NOT a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. Because the 520 mm stroke is long, minimize side-load and rod-bending by using external guides to support the piston rod.
Airtac SUJ Adjustable Cylinder SUJ32X520-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X520-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X520-50S |
| Bore size | Ø32 mm |
| Stroke | 520 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ32X520-50S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X520-50S 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 SUJ32X520-50S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×520 | 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 SUJ32X520-50S Is Used
Variable-Length Ejector
Tuning the extend stroke on-site by up to 50 mm allows an ejection mechanism to handle varying product lengths without re-mounting the cylinder.
Adjustable Diverter Gate
A 470-520 mm extend window lets operators quickly set the exact gate reach needed to route different box sizes on a packaging line.
Custom Depth Pusher
Perfect for pushing parts into containers of varying depths, where the 50 mm external stop screw precisely sets the final resting position.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X520-50S with the SAUJ32X520-50S
To replace the discontinued SUJ32X520-50S, order the drop-in SAUJ32X520-50S, which matches the 32 mm bore, 520 mm max stroke, 50 mm adjust window, 1/8" port, and FA/LB mounting. When sizing both ways, the neighbouring 40 mm bore provides higher force (628 N push @0.5 MPa), while smaller options lack the required thrust. The 50 mm adjust window is ideal if your extend stroke needs field tuning between 470 mm and 520 mm. If your application requires position feedback, note the sensor change: the SAUJ uses current CMSG/DMSG/EMSG switches instead of this model's legacy CS1-B/DS1-B. Finally, because the 520 mm stroke is long, ensure external guides are used to prevent rod-bending and excessive side-load.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X520-50S
- ✓ 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 SUJ32X520-50S FAQ
Yes, the SUJ32X520-50S is discontinued. The exact drop-in replacement is the SAUJ32X520-50S, which shares the same 32 mm bore, 520 mm max stroke, 50 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ also upgrades position sensing to current CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B.
The 32 mm bore provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and 724 N push at 0.9 MPa, with a theoretical max of 82 kgf at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 50 mm on-site, yielding a usable stroke window of 470-520 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
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