This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X100-75, 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 SUJ50X100-75
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X100-75 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 SAUJ50X100-75, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X100-75
- 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 SUJ50X100-75
The AirTAC SUJ50X100-75 is a double-acting double-rod profile cylinder with a 50mm bore, 100mm nominal stroke, and a 1/4" port. An external stop screw lets you trim the extend stroke by up to 75mm on-site, yielding a usable 25-100mm stroke.
The direct replacement is the SAUJ50X100-75, matching the bore, stroke, force, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this SUJ used legacy CS1-B/DS1-B switches. Note this no-magnet SKU cannot take a switch. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ50X100-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X100-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X100-75 |
| 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 SAUJ50X100-75 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 SAUJ50X100-75 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 SUJ50X100-75
| 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 SUJ50X100-75 Is Used
Variable Pitch Indexing
Adjusts the extend stroke on-site to shift a parts pusher between multiple fixed pitch locations without swapping cylinders.
Dynamic Reject Gate
Trims the extend stroke on the fly to deflect varying product sizes off a belt line while maintaining a compact profile.
Carton Flap Folding
Tunes the extend end position to fold differing carton depths accurately before taping, using the external stop screw.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X100-75 with the SAUJ50X100-75
To replace the discontinued SUJ50X100-75, order the SAUJ50X100-75, which matches the 50mm bore, 100mm stroke, 75mm adjust window, 1/4" port, and FA/LB mounting. Choose the 75mm adjust window if you need to trim the extend stroke down to 25mm on-site; the stop sets end position but is not a load lock, so add an external rod lock for held loads. Since this is a no-magnet SKU, it cannot take a switch; the SAUJ uses CMSG/DMSG/EMSG sensors. For strokes >=300mm, verify side-load tolerance to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X100-75
- ✓ 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 SUJ50X100-75 FAQ
Yes, the SUJ50X100-75 is discontinued. The direct replacement is the SAUJ50X100-75, matching the 50mm bore, 100mm stroke, 75mm 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 external stop screw window is 75mm, allowing you to trim the 100mm nominal extend stroke down to 25mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X100-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X100-75 replacement — usually within 7-8 hours.