This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X175-30, 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 SUJ50X175-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X175-30 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 SAUJ50X175-30, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X175-30
- 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 SUJ50X175-30
The AirTAC SUJ50X175-30 is a double-acting double-rod profile cylinder with a 175mm nominal stroke and a 30mm external stop screw, letting you trim the extend stroke down to 145mm on-site. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
This SUJ model is discontinued; the direct replacement is the SAUJ50X175-30, sharing the same force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B. With no magnet (-S omitted), this SKU cannot take a switch.
Airtac SUJ Adjustable Cylinder SUJ50X175-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X175-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X175-30 |
| 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 SAUJ50X175-30 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 SAUJ50X175-30 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 SUJ50X175-30
| 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 SUJ50X175-30 Is Used
Variable Pitch Indexing
Allows on-site extend stroke tuning from 145 to 175mm to dial in exact material pitch without swapping cylinders.
Adjustable Diverter Gate
Sets precise gate extension on a 1/4" ported 50mm bore to deflect varying package sizes on a moving belt.
Carton Sealing Stroke Trim
Trims the extend end-position by up to 30mm to accommodate fluctuating carton heights on the packaging line.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X175-30 with the SAUJ50X175-30
To replace the discontinued SUJ50X175-30, order the direct replacement SAUJ50X175-30; bore, stroke, 30mm adjust window, 1/4" port, and FA/LB mounts are unchanged. If migrating sensors, note the switch from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG rings; this no-magnet SKU takes none. Choose the 30mm adjust window when you need field-tuning beyond a fixed SAU plus external stop. For this 175mm stroke, verify side-load alignment to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X175-30
- ✓ 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 SUJ50X175-30 FAQ
Yes, the SUJ50X175-30 is discontinued. The direct replacement is the SAUJ50X175-30, matching the 50mm bore, 175mm stroke, 30mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 30mm stop screw window allows trimming the 175mm extend stroke down to 145mm. The stop sets end position and is not a load lock; drift occurs on air loss.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X175-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X175-30 replacement — usually within 7-8 hours.