This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-50SH — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-50SH 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 SUJ50X150-50SH
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-50SH 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 SAUJ50X150-50SH, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-50SH
About the Airtac SUJ Adjustable Cylinder SUJ50X150-50SH
The AirTAC SUJ50X150-50SH is a double-acting, single-rod profile cylinder with an adjustable stroke, now discontinued. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 100-150 mm stroke window from the 150 mm nominal maximum. The 50 mm bore generates 982 N push and 825 N pull at 0.5 MPa, scaling to 1374 N at 0.7 MPa and 1767 N at 0.9 MPa. This unit includes a piston magnet for position sensing and a Viton H seal, extending the operating temperature range from -20 to +70 C up to 0-150 C.
The exact drop-in replacement is the SAUJ50X150-50SH, retaining the same 1/4" port, M16x1.5 rod thread, and 21 mm adjustable cushions. A key upgrade is the sensor architecture: the SAUJ uses current CMSG/DMSG/EMSG switches, whereas this legacy SUJ relied on CS1-B/DS1-B reed switches. For sizing, a safe working load is approximately 589 N (60% of the 0.5 MPa push force), translating to a vertical lift capacity of about 50 kg with a 2:1 safety margin. Note that the external stop sets the end position but is not a load lock; an external rod lock is required to hold loads on air loss.
Airtac SUJ Adjustable Cylinder SUJ50X150-50SH Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-50SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-50SH |
| 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 SAUJ50X150-50SH 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 SAUJ50X150-50SH 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 SUJ50X150-50SH
| 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 SUJ50X150-50SH Is Used
Variable Depth Forming
Allows operators to dial in the exact extend stop for material pressing tasks where the required forming depth fluctuates by up to 50 mm between production runs.
Adjustable Diverter Arms
Perfect for package routing gates that need on-site stroke tuning to accommodate different box sizes without swapping out the entire actuator assembly.
High-Temp Ejection
The Viton H seal permits deployment near ovens or heat sources, using the external stop to precisely set the ejection reach for parts of varying widths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-50SH with the SAUJ50X150-50SH
To replace the discontinued SUJ50X150-50SH, specify the SAUJ50X150-50SH, which matches the 50 mm bore, 150 mm nominal stroke, 50 mm adjust window, 1/4" port, and FA/LB mounting form. When sizing both ways, the adjacent 40 mm bore yields 628 N push at 0.5 MPa, while the 63 mm bore offers 1559 N, giving you a clear force gradient if the 982 N baseline needs scaling. Select the 50 mm adjust window when your assembly requires up to 50 mm of field stroke tuning; smaller windows are better if you only need fine trimming. Because this model has the -S magnet, you must migrate from legacy CS1-B/DS1-B switches to the modern CMSG/DMSG/EMSG sensors used on the SAUJ. For strokes of 300 mm or longer, verify the side-load limits to prevent excessive rod bearing wear. Remember that the stop screw only sets the end position; it does not lock the load, so add an external rod lock for vertical or held loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-50SH
- ✓ 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 SUJ50X150-50SH FAQ
Yes, the SUJ50X150-50SH is discontinued. The exact drop-in replacement is the SAUJ50X150-50SH, which matches the 50 mm bore, 150 mm stroke, 50 mm adjust window, and 1/4" port. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 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 50 mm adjustment window, allowing you to shorten the extend stroke from the 150 mm nominal maximum down to 100 mm on-site.
Related AirTAC SAU Cylinders
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