This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ32X50-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ32X50-40S 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 SUJ32X50-40S 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 SAUJ32X50-40S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ32X50-40S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 10-50 mm extend out of the 50 mm nominal maximum. The 32 mm bore delivers 402 N push and 345 N pull at 0.5 MPa, rising to 563 N at 0.7 MPa. It features a 1/8" port, a Ø12 mm rod, and 21 mm adjustable air cushions at each end.
This SUJ unit is discontinued and the exact drop-in replacement is the SAUJ32X50-40S, which retains the same compact profile body, bore, stroke, force, and FA/LB mounting. A key computed buyer insight: the 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 SAUJ upgrade also transitions from the legacy CS1-B/DS1-B sensors used here to current CMSG/DMSG/EMSG switches.
| Model | Airtac SUJ Adjustable Cylinder SUJ32X50-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ32X50-40S |
| 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 SAUJ32X50-40S 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 SAUJ32X50-40S 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.
Use the 40 mm on-site stroke trim to fine-tune the extend position of a gauging probe, accommodating multiple part thicknesses without swapping cylinders.
Dial in the exact extend stop for light pressing or forming tasks where the material thickness varies by up to 40 mm between production runs.
Set precise extend lengths on the fly for diverting arms handling varying package sizes, ensuring gentle contact without reprogramming fixed stops.
To replace the discontinued SUJ32X50-40S, order the SAUJ32X50-40S for an exact drop-in match on bore, stroke, force, and port. When sizing both ways, the neighbouring 40 mm bore offers higher thrust (628 N push at 0.5 MPa) if you need more force, while staying at 32 mm keeps the 1/8" port and compact footprint. The 40 mm adjust window is ideal if your end-position target varies by up to 40 mm, avoiding the need for a fixed SAU plus an external stop. Mounting uses basic, FA, or LB brackets compatible with the SC series. Because this model has the -S magnet, you must switch from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAUJ. For strokes of 300 mm or longer, carefully verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SUJ32X50-40S is discontinued. The exact drop-in replacement is the SAUJ32X50-40S, which matches the 32 mm bore, 50 mm stroke, 40 mm adjust window, 1/8" port, and FA/LB mounting. You only need to upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
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 40 mm on-site, giving a usable extend range of 10-50 mm. The stop sets the end position but is not a load lock; use an external rod lock for held loads.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ32X50-40S replacement — usually within 7-8 hours.