This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-20 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 SUJ50X150-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-20 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 SAUJ50X150-20, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-20
About the Airtac SUJ Adjustable Cylinder SUJ50X150-20
The AirTAC SUJ50X150-20 is a double-acting single-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 130-150 mm stroke. This discontinued model delivers 982 N push and 825 N pull at 0.5 MPa, features a 1/4" port, and uses an extruded aluminum profile barrel that is shorter than an ISO 15552 cylinder of the same bore.
The exact drop-in replacement is the SAUJ50X150-20, matching the 50 mm bore, 150 mm stroke, force, port, and FA/LB mounting. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches. For sizing, a safe working load is roughly 589 N (60% of the 0.5 MPa push), translating to a 50 kg vertical lift with a 2:1 margin. This SKU has no magnet and cannot take a switch.
Airtac SUJ Adjustable Cylinder SUJ50X150-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-20 |
| 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 SAUJ50X150-20 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 SAUJ50X150-20 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 SUJ50X150-20
| 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 SUJ50X150-20 Is Used
Custom Clamp Positioning
Allows operators to dial in the exact 130-150 mm extend reach for clamping varying part widths on a single fixture without swapping cylinders.
Variable Length Sorting
Provides adjustable push-off distance at a transfer station, letting the stop screw tune the extend stroke to divert packages of different depths.
Adjustable End Stops
Sets a precise mechanical end position for a lifting tray in a low-profile assembly cell, trimming the 150 mm stroke by up to 20 mm on-site.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-20 with the SAUJ50X150-20
To replace this discontinued SUJ50X150-20, specify the SAUJ50X150-20 drop-in: it keeps the 20 mm adjust window, 1/4" port, and FA/LB mounts. When sizing both ways, the neighboring 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore yields 1559 N. Choose the 20 mm adjust window if you need precise end-position tuning between 130 and 150 mm without adding an external stop. Because this SKU lacks a magnet, it cannot accept a sensor; if sensing is required, select an SAUJ with the -S suffix and upgrade to CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify side-load limits to prevent guide wear. The stop screw sets end position but is not a load lock; for held loads, install an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-20
- ✓ 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 SUJ50X150-20 FAQ
Yes, the SUJ50X150-20 is discontinued. The exact drop-in replacement is the SAUJ50X150-20, which matches the 50 mm bore, 150 mm stroke, 982 N push force at 0.5 MPa, and 1/4" port. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
It is double-acting single-rod with a 20 mm adjust window (usable extend stroke 130-150 mm). Force is 982 N push / 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and 1767 N at 0.9 MPa. The 1/4" port cylinder has a 21 mm cushion, but the stop screw only sets end position and does not lock the load.
Related AirTAC SAU Cylinders
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