This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ32X50-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ32X50-50 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.

The AirTAC Airtac SUJ Adjustable Cylinder SUJ32X50-50 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 SAUJ32X50-50, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X50-50 is a double-acting single-rod profile cylinder with a 32mm bore and 50mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 0-50mm extend window. The stop sets the end position but is not a load lock. Operating on 1/8" porting at 0.5MPa, it delivers 402N push and 345N pull force.
This SUJ model is discontinued and the direct drop-in replacement is the SAUJ32X50-50, matching the bore, stroke, force, and SC-series FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B. Without a magnet (-S omitted), this SKU cannot take a magnetic switch. Based on the 402N push figure, the safe working load is roughly 241N, translating to a 20kg vertical lift with a 2:1 margin.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X50-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X50-50 |
| 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 SAUJ32X50-50 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAUJ32X50-50 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.
| 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.
Tuning the extend stroke on-site to push parts of varying widths into a press without fabricating multiple fixed-length cylinders.
Dialing in the exact extend position for a sorting gate to accommodate different package sizes on a packaging line.
Fine-tuning the extend stop during R&D to find the optimal end position for a new clamping mechanism before finalizing the design.
To replace the discontinued SUJ32X50-50, order the drop-in SAUJ32X50-50, which preserves the 32mm bore, 50mm stroke, 1/8" port, and FA/LB mounting. When sizing both ways, the neighbouring 40mm bore provides 628N push at 0.5MPa if more force is needed, while the 32mm bore offers 402N push. Choose the 50mm adjust window if your mechanism requires field tuning of the extend stroke from 0 to 50mm. Because this non-magnet SKU cannot accept sensors, sensing requires the SAUJ with CMSG/DMSG/EMSG switches. For stroke lengths of 300mm or more, verify side-load limits to prevent rod binding. For any load-holding requirement, add an external rod lock or pilot-operated check valve, as the adjust stop and air cushions only decelerate and do not lock the piston on air loss.
Replacement checklist
Yes, the SUJ32X50-50 is discontinued. The exact drop-in replacement is the SAUJ32X50-50, which matches the 32mm bore, 50mm stroke, 402N push force at 0.5MPa, 1/8" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
This double-acting single-rod cylinder delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and 724N push at 0.9MPa, with a theoretical max of 82kgf at 1.0MPa. The external stop screw provides a 50mm adjust window, allowing you to shorten the 50mm nominal extend stroke down to 0mm on-site. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X50-50 replacement — usually within 7-8 hours.