This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X175-100, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 direct 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUJ Adjustable Cylinder SUJ50X175-100
The AirTAC SUJ50X175-100 is a double-acting double-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.
This SUJ model is DISCONTINUED. The direct replacement is the SAUJ50X175-100, matching the bore, stroke, force, 1/4" port, and FA/LB mounting. 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. 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 direct replacement SAUJ50X175-100. It preserves the 50 mm bore, 175 mm nominal stroke, 100 mm adjust window, 1/4" port, and FA/LB mounting. 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 direct 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 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
Request a Quote for the SAUJ50X175-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X175-100 replacement — usually within 7-8 hours.