This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X150-75, 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 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 direct 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
- 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 SUJ50X150-75
The AirTAC SUJ50X150-75 is a double-acting double-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.
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. 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 direct; it preserves the 50mm bore, 150mm stroke, 75mm adjust window, 1/4" port, and FA/LB SC-series mounts. 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 direct 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 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
Request a Quote for the SAUJ50X150-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X150-75 replacement — usually within 7-8 hours.