This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X150-75 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X150-75 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 SUJ50X150-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X150-75 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 SAUJ50X150-75, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X150-75
About the Airtac SUJ Adjustable Cylinder SUJ50X150-75
The AirTAC SUJ50X150-75 is a double-acting single-rod profile cylinder with a 50mm bore and 150mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 75mm on-site, yielding a usable 75-150mm window. This discontinued model is directly replaced by the SAUJ50X150-75, which matches the 1/4" port, M16x1.5 rod thread, and 21mm adjustable cushions. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors over the legacy CS1-B/DS1-B switches.
At 0.5MPa this 50mm bore delivers 982N push and 825N pull force, climbing to 1374N push at 0.7MPa. For sizing, a safe working load is roughly 589N (60% of the 0.5MPa push), translating to a 50kg vertical lift with a 2:1 margin. The stop screw sets the end position but is not a load lock; the piston drifts without live air, so fit an external rod lock for held loads. This SKU lacks a magnet and cannot accept switches.
Airtac SUJ Adjustable Cylinder SUJ50X150-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X150-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X150-75 |
| 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 SAUJ50X150-75 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 SAUJ50X150-75 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 SUJ50X150-75
| 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 SUJ50X150-75 Is Used
Variable Pitch Indexing
Allows operators to dial in the exact extend length for a new product run without machining spacers, using the 75mm trim window to hit multiple pin locations.
Adjustable Transfer Pusher
Tunes the pusher end-position on-site to accommodate varying box widths on a packaging line, ensuring precise alignment before the next process.
Variable Depth Stops
Provides a field-adjustable hard stop for pallets or trays of differing depths, allowing quick changeovers by simply turning the external stop screw.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X150-75 with the SAUJ50X150-75
To replace the discontinued SUJ50X150-75, order the SAUJ50X150-75 drop-in; it preserves the 50mm bore, 150mm stroke, 75mm adjust window, 1/4" port, and FA/LB SC-series mounts. If you need more force, the neighbouring 63mm bore provides 1559N push at 0.5MPa; if less is acceptable, the 40mm bore offers 628N. Choose the 75mm adjust window when you need on-site tuning over a wide 75-150mm range. Because this non-magnet SKU cannot take switches, the SAUJ upgrade lets you use CMSG/DMSG/EMSG sensors if you add the -S option. For strokes of 300mm or longer, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X150-75
- ✓ 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 SUJ50X150-75 FAQ
Yes, the SUJ50X150-75 is discontinued. The exact drop-in replacement is the SAUJ50X150-75, which shares the same 50mm bore, 150mm max stroke, 75mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
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 200kgf theoretical max. The external stop screw shortens the extend stroke by up to 75mm on-site, giving a usable window of 75-150mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
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