This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-20S 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 SUJ50X150-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-20S 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 SAUJ50X150-20S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-20S
About the Airtac SUJ Adjustable Cylinder SUJ50X150-20S
The AirTAC SUJ50X150-20S is a double-acting single-rod profile cylinder with a 50mm bore and 150mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20mm on-site, yielding a usable 130-150mm stroke. This bore delivers 982N push and 825N pull at 0.5MPa, features a 1/4" port, and uses adjustable 21mm cushions. The SUJ50X150-20S is discontinued; the exact drop-in replacement is the SAUJ50X150-20S, sharing the same force, port, and FA/LB mounting.
For sizing, the safe working load is roughly 589N (60% of the 982N push at 0.5MPa), translating to a 50kg vertical lift with a 2:1 margin. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors, which the SAUJ upgrades to CMSG/DMSG/EMSG switches. The SAUJ also adds an SAUF built-in-valve variant the SU line lacked.
Airtac SUJ Adjustable Cylinder SUJ50X150-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-20S |
| 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 SAUJ50X150-20S 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 SAUJ50X150-20S 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 SUJ50X150-20S
| 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 SUJ50X150-20S Is Used
Custom Tooling Clash Compensation
Dial in the exact extend stop on-site to accommodate varying workpiece thicknesses or tooling profiles without reprogramming the motion controller.
Variable Length Diverter Gates
Adjust the extend stroke by up to 20mm to fine-tune the diverter arm position for different package sizes on a shared production line.
Adjustable Mechanical Stops
Set precise mechanical end-positions for indexing pushes where sensorless hard stops are preferred over electronic limit detection.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-20S with the SAUJ50X150-20S
To replace the discontinued SUJ50X150-20S, order the drop-in SAUJ50X150-20S, which preserves the 50mm bore, 150mm stroke, 20mm adjust window, 1/4" port, and FA/LB mounting. When sizing both ways, the neighbouring 40mm bore yields 628N push at 0.5MPa, while the 63mm bore yields 1559N; choose based on your 982N baseline. Select the 20mm adjust window if you need field tuning between 130-150mm. For the -S magnet, swap legacy CS1-B/DS1-B sensors for current CMSG/DMSG/EMSG switches. For stroke lengths of 300mm or more, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-20S
- ✓ 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 SUJ50X150-20S FAQ
Yes, the SUJ50X150-20S is discontinued. The exact drop-in replacement is the SAUJ50X150-20S, which maintains the same 50mm bore, 150mm nominal stroke, 20mm adjust window, 1/4" port, and FA/LB mounting. You must upgrade the -S piston magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The 50mm bore provides 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and 1767N push at 0.9MPa, with a theoretical max of 200kgf at 1.0MPa. The external stop screw allows you to trim the extend stroke by up to 20mm on-site, giving a usable extend range of 130-150mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X150-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-20S replacement — usually within 7-8 hours.