This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-30S 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 SUJ50X150-30S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-30S 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 SAUJ50X150-30S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-30S
About the Airtac SUJ Adjustable Cylinder SUJ50X150-30S
The AirTAC SUJ50X150-30S is a discontinued double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 120-150 mm extension out of the 150 mm nominal maximum. It delivers 982 N push and 825 N pull at 0.5 MPa (1374 N at 0.7 MPa), features a 1/4" port, and uses an adjustable 21 mm air cushion at each end. The drop-in replacement is the SAUJ50X150-30S, retaining the exact bore, stroke, force, port, and SC-series FA/LB mounting.
This model includes a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUJ upgrade uses current CMSG/DMSG/EMSG sensors. The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore. For sizing, the 982 N push at 0.5 MPa implies a safe working load of roughly 589 N (60% factor) and a vertical lift capacity of about 50 kg with a 2:1 margin. Note that the external stop 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.
Airtac SUJ Adjustable Cylinder SUJ50X150-30S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-30S |
| 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 SAUJ50X150-30S 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 SAUJ50X150-30S 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 SUJ50X150-30S
| 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 SUJ50X150-30S Is Used
Variable Pitch Indexing
Dialing the extend stroke down by 30 mm on-site lets a single profile cylinder drive two distinct pitch lengths on a machining line without swapping the whole actuator.
Adjustable Reject Pusher
Tuning the extend stroke to match varying product widths on a conveyor ensures the reject arm retracts precisely without striking the guide rail.
Variable Depth Palletizing
Trimming the extend stroke by up to 30 mm accommodates inconsistent pallet depths or layer heights, ensuring precise placement without reprogramming the motion controller.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-30S with the SAUJ50X150-30S
To replace the discontinued SUJ50X150-30S, order the drop-in SAUJ50X150-30S, which preserves the 50 mm bore, 150 mm nominal stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. When sizing both ways, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore offers 1559 N, compared to this 50 mm bore's 982 N. Choose the 30 mm adjust window if your fixture needs field tuning between 120 mm and 150 mm extension. Because this is an -S model, you must upgrade your sensing from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear. The stop screw sets end position only; it is not a lock, so install an external rod lock or pilot-operated check valve if the load must be held.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-30S
- ✓ 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 SUJ50X150-30S FAQ
Yes, the SUJ50X150-30S is discontinued. The exact drop-in replacement is the SAUJ50X150-30S, which matches the 50 mm bore, 150 mm stroke, 30 mm adjust window, 1/4" port, and FA/LB mounting. You will need to upgrade your sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
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, 1767 N push at 0.9 MPa, and a theoretical max of 200 kgf at 1.0 MPa. The external stop screw provides a 30 mm adjust window, allowing you to shorten the 150 mm nominal extend stroke down to 120 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
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