This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ32X500-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ32X500-20S 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 SUJ32X500-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X500-20S is a double-acting profile-type standard cylinder with a Ø32mm bore and 500mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ32X500-20S, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke500 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X500-20S
About the Airtac SUJ Adjustable Cylinder SUJ32X500-20S
The AirTAC SUJ32X500-20S is a double-acting single-rod profile cylinder with an adjustable stroke, letting you trim the extend stroke by up to 20 mm on-site. This yields a usable extend range of 480-500 mm from the 500 mm nominal maximum. The 32 mm bore generates 402 N push and 345 N pull at 0.5 MPa, with a 1/8" port and M10x1.25 rod thread. This discontinued model is fully replaced by the drop-in SAUJ32X500-20S, which retains the exact bore, stroke, force, port, and SC-series FA/LB mounting.
For sizing, the computed safe working load is roughly 241 N (about 60% of the 402 N push force), translating to a 20 kg vertical lift with a 2:1 margin. The external stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for holding. Because the 500 mm stroke is long, external guides are recommended to prevent rod bending. The SAUJ upgrade switches from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ32X500-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X500-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X500-20S |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAUJ32X500-20S 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 SAUJ32X500-20S 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 SUJ32X500-20S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | 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 SUJ32X500-20S Is Used
Variable Pitch Pushing
Tuning the extend stroke by up to 20 mm on-site to push parts of varying widths into a machining station without swapping the entire cylinder.
Adjustable Diverting
Field-adjusting the 500 mm extend stop to precisely meet shifting conveyor lane widths or product sizes on the fly.
End-Stop Calibration
Fine-tuning the end-of-stroke position within the 480-500 mm window to calibrate stops after mechanical wear or tooling changes.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X500-20S with the SAUJ32X500-20S
To replace the discontinued SUJ32X500-20S, use the exact drop-in SAUJ32X500-20S, which matches the 32 mm bore, 500 mm stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. If re-sizing, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while dropping to a smaller bore is not available as 32 mm is the minimum. Choose the 20 mm adjust window if you need 480-500 mm of extend travel tuned on-site. For the -S magnet option, the SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Because the 500 mm stroke is long, use external guides to manage side-load and prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X500-20S
- ✓ 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 SUJ32X500-20S FAQ
Yes, the SUJ32X500-20S is discontinued. The exact drop-in replacement is the AirTAC SAUJ32X500-20S, which matches the 32 mm bore, 500 mm stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of 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, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The external stop screw window is 20 mm, allowing you to shorten the 500 mm extend stroke down to 480 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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