This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ32X50-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ32X50-20 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 SUJ32X50-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X50-20 is a double-acting profile-type standard cylinder with a Ø32mm bore and 50mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ32X50-20, which matches its bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke50 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAUJ32X50-20
About the Airtac SUJ Adjustable Cylinder SUJ32X50-20
The AirTAC SUJ32X50-20 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 (usable range 30-50 mm). The external stop screw sets the end position but is not a load lock. This 32 mm bore delivers 402 N push and 345 N pull at 0.5 MPa, features a 1/8" port, and uses adjustable 21 mm cushions.
This SUJ model is discontinued; the exact drop-in replacement is the SAUJ32X50-20, matching the bore, stroke, force, and port. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. As a non-magnet SKU, it cannot take a switch. For sizing, a safe working load is roughly 241 N (60% of the 0.5 MPa push), equating to a 20 kg vertical lift with a 2:1 margin.
Airtac SUJ Adjustable Cylinder SUJ32X50-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ32X50-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X50-20 |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAUJ32X50-20 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 SAUJ32X50-20 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 SUJ32X50-20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SUJ32X50-20 Is Used
Variable Pitch Indexing
Adjusts the extend stroke on-site to tune the pitch of parts feeding into a light assembly fixture without swapping cylinders.
Variable Diverter Gate
Sets the reach of a sorting gate arm by trimming the extend position to accommodate different carton widths on the fly.
Adjustable Pusher Stop
Regulates the push distance of a manual pallet loading assist to handle varying product depths accurately.
Replacing the Airtac SUJ Adjustable Cylinder SUJ32X50-20 with the SAUJ32X50-20
To replace the discontinued SUJ32X50-20, order the drop-in SAUJ32X50-20, which retains the 1/8" port, 50 mm stroke, 20 mm adjust window, and FA/LB mounting. When sizing both ways, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while dropping down requires confirming smaller bore availability. Choose the 20 mm adjust window if you need field tuning of the extend stroke; for fixed positions, a standard SAU cylinder suffices. Because this is a non-magnet SKU, it cannot accept sensors; upgrading to the SAUJ with a -S suffix enables CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ32X50-20
- ✓ 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 SUJ32X50-20 FAQ
Yes, the SUJ32X50-20 is discontinued. The exact drop-in replacement is the SAUJ32X50-20, offering the same 32 mm bore, 50 mm stroke, 20 mm adjust window, 1/8" port, and FA/LB mounting. The SAUJ 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, and 724 N push at 0.9 MPa, with a theoretical max of 82 kgf at 1.0 MPa. The external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 30-50 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAU Cylinders
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