This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X275-20, 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 SUJ100X275-20
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X275-20 is a double-acting profile-type standard cylinder with a Ø100mm bore and 275mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X275-20, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke275 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X275-20
- 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 SUJ100X275-20
The AirTAC SUJ100X275-20 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 255-275 mm extend out of the 275 mm nominal maximum. It features a 25 mm rod, M20x1.5 rod thread, 29 mm adjustable air cushions, and a 1/2" port.
This SUJ model is discontinued; the direct replacement is the SAUJ100X275-20, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. Note this SKU lacks a magnet and cannot take a sensor. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X275-20 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X275-20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X275-20 |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAUJ100X275-20 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 SAUJ100X275-20 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 SUJ100X275-20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SUJ100X275-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 255-275 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Trim the extend stroke by up to 20 mm to adjust a diverter gate profile for changing package sizes on a packaging line.
Adjustable End Stop
Provides a field-tunable end position for pallet lifting or positioning where the exact stopping point must be set during commissioning.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X275-20 with the SAUJ100X275-20
To replace the discontinued SUJ100X275-20, order the direct replacement SAUJ100X275-20, which preserves the 100 mm bore, 275 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 20 mm adjust window if you need precise 255-275 mm extend tuning on-site, which often beats fitting a fixed-stroke SAU plus an external stop. Because this SKU has no magnet, it cannot accept sensors; if sensing is required, select an SAUJ with the -S suffix and use CMSG/DMSG/EMSG switches. For this 275 mm stroke, verify side-load alignment to prevent rod binding. Mounting compatibility is with the AirTAC SC series only.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X275-20
- ✓ 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 SUJ100X275-20 FAQ
Yes, the SUJ100X275-20 is discontinued. The direct replacement is the SAUJ100X275-20, which matches the 100 mm bore, 275 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 20 mm adjust window allows trimming the extend stroke from 275 mm down to 255 mm on-site. It has a 1/2" port, 29 mm cushions, and a 25 mm rod.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X275-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X275-20 replacement — usually within 7-8 hours.