This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-50S 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 SUJ50X150-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-50S 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 SAUJ50X150-50S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-50S
About the Airtac SUJ Adjustable Cylinder SUJ50X150-50S
The AirTAC SUJ50X150-50S is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 100-150 mm stroke from the 150 mm nominal maximum. The 50 mm bore delivers 982 N push and 825 N pull at 0.5 MPa, scaling to 1374 N push at 0.7 MPa. It features a 1/4" port, an M16x1.5 rod thread, and 21 mm adjustable air cushions. This discontinued model is fully replaced by the drop-in SAUJ50X150-50S, which retains the exact bore, stroke, force, port, and FA/LB mounting.
For sizing, the 982 N push force at 0.5 MPa translates to a safe working load of roughly 589 N (60% capacity) or a 50 kg vertical lift with a 2:1 safety margin. The 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 held loads. The SAUJ upgrade switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches while keeping the compact profile barrel shorter than standard cylinders.
Airtac SUJ Adjustable Cylinder SUJ50X150-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-50S |
| 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 SAUJ50X150-50S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAUJ50X150-50S 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 SUJ50X150-50S
| 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.
Where the Airtac SUJ Adjustable Cylinder SUJ50X150-50S Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning up to 50 mm to alter part pitch without swapping the entire cylinder.
Adjustable Diverter Gate
Sets precise diversion distances on the fly, trimming the extend stroke to route varying package sizes.
Variable Depth Pusher
Trims the extend stroke to push boxes to different conveyor depths without repositioning the cylinder mount.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-50S with the SAUJ50X150-50S
To replace the discontinued SUJ50X150-50S, order the drop-in SAUJ50X150-50S, which matches the 50 mm bore, 150 mm max stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. When sizing both ways, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore provides 1559 N push. Choose the 50 mm adjust window if you need to trim the extend stroke by up to 50 mm on-site; the external stop sets end position but does not lock the load, so add an external rod lock for vertical holding. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-50S
- ✓ 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 SUJ50X150-50S FAQ
Yes, the SUJ50X150-50S is discontinued. The exact drop-in replacement is the SAUJ50X150-50S, matching the 50 mm bore, 150 mm stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting. You must upgrade the position sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The 50 mm bore single-rod design provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, 1767 N push at 0.9 MPa, and a 200 kgf theoretical max at 1.0 MPa. The external stop screw trims the extend stroke by up to 50 mm on-site, giving a usable 100-150 mm stroke from the 150 mm nominal maximum. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X150-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-50S replacement — usually within 7-8 hours.