This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-10S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-10S 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 SUJ50X150-10S is a double-acting profile-type standard cylinder with a Ø50mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ50X150-10S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ50X150-10S is a double-acting single-rod profile cylinder with a 150 mm nominal stroke and an external stop screw that lets you trim the extend stroke by up to 10 mm on-site (yielding a 140-150 mm usable window). Because the stop screw merely sets the end position, it is not a load lock; you must add an external rod lock or pilot-operated check valve if you need to hold a load safely on air loss. The 50 mm bore uses a 1/4" port, a Ø20 mm rod, and adjustable cushions.
This discontinued model is replaced drop-in by the SAUJ50X150-10S, which shares the exact bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade moves to current CMSG/DMSG/EMSG sensors (this SUJ used legacy CS1-B/DS1-B switches) and offers the SAUF built-in-valve variant the SU line lacked. For force, it pushes 982 N and pulls 825 N at 0.5 MPa; the safe working load is about 589 N (60% of the 0.5 MPa push figure), giving a roughly 50 kg vertical lift capacity with a 2:1 margin.
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-10S |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ50X150-10S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X150-10S 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). |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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.
Dialing in the exact crush distance on delicate gaskets or seals by trimming the extend stroke up to 10 mm on-site without machining hard stops.
Adjusting the extend reach to accommodate slight profile changes between different product sizes running on the same packaging line.
Fine-tuning the stopping point of pallets on a roller conveyor by tweaking the rod extension rather than moving the entire cylinder mount.
To replace the SUJ50X150-10S, order the SAUJ50X150-10S; it is a true drop-in swap retaining the 50 mm bore, 150 mm stroke, 1/4" port, and FA/LB mounting. If you need to size both ways, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore yields 1559 N push at 0.5 MPa. Choose the 10 mm adjust window when you only need minor field tuning of the extend position rather than a large stroke reduction. Because this unit has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors on the SAUJ. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear.
Replacement checklist
Yes, the AirTAC SUJ50X150-10S is discontinued. The exact drop-in replacement is the SAUJ50X150-10S, which matches the 50 mm bore, 150 mm stroke, 10 mm adjust window, 1/4" port, and FA/LB mounting. You will need to upgrade your switches from the legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG sensors.
The double-acting single-rod 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and 1767 N push at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. The external stop screw provides a 10 mm adjust window, meaning the 150 mm nominal extend stroke can be shortened to a 140 mm minimum on-site. The stop sets end position only and does not lock the load.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-10S replacement — usually within 7-8 hours.