This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X300-30, 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 SUJ100X300-30
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X300-30 is a double-acting profile-type standard cylinder with a Ø100mm bore and 300mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X300-30, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke300 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X300-30
- 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 SUJ100X300-30
The AirTAC SUJ100X300-30 is a double-acting double-rod profile cylinder with an adjustable stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable extend range of 270-300 mm from the 300 mm nominal maximum. The 1/2" port and M20x1.5 rod end handle high flow, while the 29 mm adjustable air cushions decelerate heavy loads smoothly.
This SUJ model is discontinued; the direct replacement is the SAUJ100X300-30, matching the bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy unit used CS1-B/DS1-B switches. Note this non-magnetic SKU cannot take a switch. 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 SUJ100X300-30 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X300-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X300-30 |
| Bore size | Ø100 mm |
| Stroke | 300 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 SAUJ100X300-30 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 SAUJ100X300-30 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 SUJ100X300-30
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×300 | 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 SUJ100X300-30 Is Used
Press Fit Tuning
Adjusting the extend stroke on-site by up to 30 mm to dial in exact press-fit depths for varying assembly parts without re machining hard stops.
Variable Length Diverter
Trimming the actuator extend position in 270-300 mm increments to deflect different package sizes on a high-speed conveyor line.
Pallet Positioning Stop
Fine-tuning the end-stop position for mixed pallet heights, using the external screw to set the precise 270-300 mm extend endpoint.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X300-30 with the SAUJ100X300-30
To replace the discontinued SUJ100X300-30, specify the SAUJ100X300-30 direct: it preserves the 100 mm bore, 300 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 30 mm adjust window when you need precise 270-300 mm extend tuning on-site. Because this is a non-magnetic SKU, it cannot accept a sensor; the SAUJ replacement with a -S suffix uses CMSG/DMSG/EMSG sensors (this SUJ used CS1-B/DS1-B). For the 300 mm stroke, verify side-load limits and use external guides to prevent rod bending.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X300-30
- ✓ 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 SUJ100X300-30 FAQ
Yes, the SUJ100X300-30 is discontinued. The direct replacement is the SAUJ100X300-30, which matches the 100 mm bore, 300 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw window is 30 mm, allowing you to trim the 300 mm nominal extend stroke down to 270 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X300-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X300-30 replacement — usually within 7-8 hours.