This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X70-50S, 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 SUJ100X70-50S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X70-50S is a double-acting profile-type standard cylinder with a Ø100mm bore and 70mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X70-50S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke70 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X70-50S
- 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 SUJ100X70-50S
The AirTAC SUJ100X70-50S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 20-70 mm stroke from the 70 mm nominal maximum. It features a 1/2" port, a 25 mm rod, M20x1.5 rod thread, and 29 mm adjustable cushions.
This discontinued unit drops directly into the SAUJ100X70-50S, retaining the exact bore, force, port, and FA/LB mounting. The upgrade path moves legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. 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 SUJ100X70-50S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X70-50S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X70-50S |
| Bore size | Ø100 mm |
| Stroke | 70 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 SAUJ100X70-50S 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 SAUJ100X70-50S 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 SUJ100X70-50S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×70 | 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 SUJ100X70-50S Is Used
Press Fit Tuning
Allows operators to dial in the exact 20-70 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Provides a retractable diverting stroke that can be trimmed by up to 50 mm to accommodate changing package sizes on the fly.
Adjustable End Stop
Sets a precise physical end position for pallets or workpieces where a fixed 70 mm stroke would bottom out too aggressively.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X70-50S with the SAUJ100X70-50S
To replace the SUJ100X70-50S, order the SAUJ100X70-50S (insert A after the leading S) for an direct match on bore, 70 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 50 mm adjust window when your mechanism needs field tuning between 20 and 70 mm. Because this is an -S model, you must upgrade your position sensing from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors. For strokes at or above 300 mm, verify your side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X70-50S
- ✓ 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 SUJ100X70-50S FAQ
Yes, the SUJ100X70-50S is discontinued. The direct replacement is the SAUJ100X70-50S, which matches the 100 mm bore, 70 mm stroke, 50 mm adjust window, 1/2" port, and FA/LB mounting. You will need to upgrade your sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 50 mm adjust window, allowing you to shorten the 70 mm nominal extend stroke down to 20 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X70-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X70-50S replacement — usually within 7-8 hours.