This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ50X100-30, 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 SUJ50X100-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ50X100-30 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 SAUJ50X100-30, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUJ50X100-30
- 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 SUJ50X100-30
The AirTAC SUJ50X100-30 is a double-acting double-rod profile cylinder with an adjustable extend stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable 70-100mm stroke out of the 100mm nominal maximum. This SUJ is discontinued; the direct replacement is the SAUJ50X100-30, retaining the same force, port, and FA/LB mounting.
The SAUJ upgrade shifts sensing from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches, though this specific 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 SUJ50X100-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ50X100-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ50X100-30 |
| 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 SAUJ50X100-30 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 SAUJ50X100-30 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 SUJ50X100-30
| 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 SUJ50X100-30 Is Used
Variable Depth Boring
Trimming the extend stroke by up to 30mm on-site allows a machining fixture to dial in exact boring depths between 70mm and 100mm without swapping cylinders.
Adjustable Carton Flap Folding
Accommodate varying box heights on a packaging line by field-tuning the extend stop, ensuring the folding arm hits the correct position every time.
Tiered Pallet Positioning
Adjusting the extend stroke down from the 100mm maximum lets a diverter arm reach different pallet tier heights precisely without adding external mechanical stops.
Replacing the Airtac SUJ Adjustable Cylinder SUJ50X100-30 with the SAUJ50X100-30
To replace the discontinued SUJ50X100-30, order the direct replacement SAUJ50X100-30. Choose the 30mm adjust window if you need to trim the extend stroke down to 70mm on-site. Mounting uses basic, FA, or LB brackets compatible with AirTAC SC series parts. Because this SKU lacks a magnet (-S), it cannot accept sensors, but the SAUJ upgrade supports CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. For strokes of 300mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ50X100-30
- ✓ 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 SUJ50X100-30 FAQ
Yes, the SUJ50X100-30 is discontinued. The direct replacement is the SAUJ50X100-30, which matches the 50mm bore, 100mm stroke, 30mm 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 provides a 30mm adjust window, shortening the extend stroke from the 100mm maximum down to 70mm. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ50X100-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ50X100-30 replacement — usually within 7-8 hours.