This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X100-75SFA, 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 SUJ50X100-75SFA
The AirTAC SUJ Adjustable Cylinder SUJ50X100-75SFA is a double-acting profile-type standard cylinder with a Ø50mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ50X100-75SFA, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X100-75SFA
- 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 SUJ50X100-75SFA
The AirTAC SUJ50X100-75SFA is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 25-100 mm stroke from the 100 mm nominal maximum. This DISCONTINUED model maps directly to the SAUJ50X100-75SFA direct replacement, retaining the exact bore, stroke, force, and FA mounting interface.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The SAUJ upgrade keeps the compact profile barrel and FA mount but transitions from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ50X100-75SFA Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X100-75SFA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X100-75SFA |
| Bore size | Ø50 mm |
| Stroke | 100 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 SAUJ50X100-75SFA 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 SAUJ50X100-75SFA 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 SUJ50X100-75SFA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SUJ50X100-75SFA Is Used
Variable Depth Drilling
Allows operators to tune the extend stroke on-site for parts of varying heights without reprogramming the motion controller.
Adjustable Forming Press
Provides a 25-100 mm extend window to accommodate different carton depths or material thicknesses on a shared line.
Custom Length Diverter
Enables field adjustment of the pusher stroke to route different package sizes without swapping the entire cylinder.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X100-75SFA with the SAUJ50X100-75SFA
To replace the discontinued SUJ50X100-75SFA, order the direct replacement SAUJ50X100-75SFA, which matches the 50 mm bore, 100 mm max stroke, 75 mm adjust window, 1/4" port, and FA mounting. Choose the 75 mm adjust window when you need significant on-site extend stroke trimming (down to 25 mm). The FA mount is an SC-series accessory. Because this unit has the -S magnet, upgrade your position sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches. For any stroke >=300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X100-75SFA
- ✓ 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 SUJ50X100-75SFA FAQ
Yes, the SUJ50X100-75SFA is discontinued. The direct replacement is the SAUJ50X100-75SFA, which matches the 50 mm bore, 100 mm stroke, 75 mm adjust window, 1/4" port, and FA mounting. You must upgrade the position sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable extend range of 25-100 mm from the 100 mm nominal maximum.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X100-75SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X100-75SFA replacement — usually within 7-8 hours.