This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAUJ50X175-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAUJ50X175-100 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 SUJ50X175-100
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X175-100 is a double-acting profile-type standard cylinder with a Ø50mm bore and 175mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAUJ50X175-100, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X175-100
About the Airtac SUJ Adjustable Cylinder SUJ50X175-100
The AirTAC SUJ50X175-100 is a double-acting single-rod profile cylinder with a 50 mm bore and a 175 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 75-175 mm stroke window. This compact aluminum barrel is shorter than an ISO 15552 cylinder of the same bore. Operating on 1/4" ports with a 20 mm rod, it delivers 982 N push and 825 N pull at 0.5 MPa, and 1767 N push at 0.9 MPa.
This SUJ model is DISCONTINUED. The exact drop-in replacement is the SAUJ50X175-100, matching the bore, stroke, force, 1/4" port, and FA/LB mounting. For sizing, a safe working load is roughly 589 N (about 60% of the 0.5 MPa push), allowing a 50 kg 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. This non-magnet SKU cannot take a switch, and upgrading to the SAUJ moves sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors.
Airtac SUJ Adjustable Cylinder SUJ50X175-100 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X175-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X175-100 |
| Bore size | Ø50 mm |
| Stroke | 175 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 SAUJ50X175-100 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 SAUJ50X175-100 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 SUJ50X175-100
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×175 | 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 SUJ50X175-100 Is Used
Variable Pitch Indexing
A packaging machine that needs to push varying box sizes can use the 100 mm adjust window to set different extend endpoints on the fly without swapping cylinders.
Adjustable Transfer Diverter
A diverter arm on a conveyor line can be tuned precisely between 75 and 175 mm to accommodate changing product widths on the production floor.
Customizable Stacking Pusher
A palletizing pusher uses the external stop screw to dial in the exact extend position for different layer heights, ensuring precise stacking without reprogramming.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X175-100 with the SAUJ50X175-100
To replace the discontinued SUJ50X175-100, order the drop-in SAUJ50X175-100. It preserves the 50 mm bore, 175 mm nominal stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. When sizing both ways, the neighboring 40 mm bore yields 879 N push at 0.7 MPa, while the 63 mm bore yields 2182 N push at 0.7 MPa. Choose the 100 mm adjust window when you need on-site extend tuning from 75 to 175 mm. Because this non-magnet SKU lacks a piston band, it cannot accept a magnetic switch; the SAUJ upgrade shifts sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X175-100
- ✓ 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 SUJ50X175-100 FAQ
Yes, the SUJ50X175-100 is discontinued. The exact drop-in replacement is the SAUJ50X175-100. It matches the 50 mm bore, 175 mm stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also offers the SAUF built-in-valve variant the SU line lacked.
The double-acting single-rod 50 mm bore delivers 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and 1767 N push at 0.9 MPa. The external stop screw trims the extend stroke by up to 100 mm on-site, giving a 75-175 mm usable window. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
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