This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X80-50, 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 SUJ100X80-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X80-50 is a double-acting profile-type standard cylinder with a Ø100mm bore and 80mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X80-50, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X80-50
- 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 SUJ100X80-50
The AirTAC SUJ100X80-50 is a double-acting double-rod profile cylinder that allows you to trim the extend stroke by up to 50 mm on-site via an external stop screw. With a nominal 80 mm stroke, the usable extend range is 30-80 mm. The 1/2" port and M20x1.5 rod end handle high flow rates for a 30-800 mm/s speed range.
This SKU is discontinued and the direct replacement is the SAUJ100X80-50, which matches the 100 mm bore, 80 mm stroke, 1/2" port, and FA/LB mounting. The SAUJ upgrades sensing to current CMSG/DMSG/EMSG switches (this legacy model used CS1-B/DS1-B). Note this specific unit has no magnet and cannot take a switch. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X80-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X80-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X80-50 |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ100X80-50 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X80-50 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 SUJ100X80-50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SUJ100X80-50 Is Used
Crushing Press
Needs field stroke tuning to set a precise 60 mm crush depth on varying material batches without reprogramming the PLC.
Diverter Gate
Requires trimming the extend stroke by 30 mm on-site to perfectly align the divert arm with a new narrow package profile.
Carton Sealer
Demands an adjustable 45 mm extend stop to seal different carton heights accurately without changing the entire actuator.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X80-50 with the SAUJ100X80-50
To replace the discontinued SUJ100X80-50, order the SAUJ100X80-50 direct. It preserves the 100 mm bore, 80 mm stroke, 1/2" port, and FA/LB mounting. The 50 mm adjust window lets you set the extend stroke anywhere from 30 to 80 mm. If you need position feedback, the SAUJ takes CMSG/DMSG/EMSG sensors, whereas this non-magnetic SUJ cannot. For strokes at or above 300 mm, verify side-load limits to prevent guide wear. The stop screw sets end position only; it does not lock the load on air loss.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X80-50
- ✓ 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 SUJ100X80-50 FAQ
Yes, the SUJ100X80-50 is discontinued. The direct replacement is the SAUJ100X80-50, which matches the 100 mm bore, 80 mm stroke, 1/2" 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 offers a 50 mm adjust window, allowing you to shorten the 80 mm nominal extend stroke down to 30 mm on-site. This stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X80-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X80-50 replacement — usually within 7-8 hours.