This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-75, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X150-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X150-75
- 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75
The AirTAC SIJ80X150-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 150 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 75-150 mm window. This 80 mm bore features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. The stop sets the end position but is not a load lock; use an external rod lock for held loads.
The direct replacement is the SAIJ80X150-75, retaining the same interface, force, and porting. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet and cannot take a switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-75 |
| Bore size | Ø80 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ80X150-75 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X150-75 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 Is Used
Variable Depth Drilling
Tuning the 75-150 mm extend stroke on-site allows a drill head to accommodate multiple material thicknesses without swapping the entire actuator assembly.
Adjustable Carton Sealing
Trimming the extend stroke by up to 75 mm lets a sealing jaw adapt to varying package heights on the fly, ensuring consistent flap closure.
Variable Position Diverter
An external stop screw provides precise extend limits to deflect different product sizes off a conveyor belt without reprogramming the motion controller.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 with the SAIJ80X150-75
To replace the discontinued SIJ80X150-75, order the direct replacement SAIJ80X150-75, reusing your existing FA, LB, or TC ISO 15552 mounts. Select the 75 mm adjust window when you need on-site extend tuning between 75 and 150 mm. Because this SKU has no -S magnet, sensing is impossible; add external sensors if required. For any stroke at or exceeding 300 mm, verify your side-load limits to prevent guide failure. Remember the stop screw is not a brake; for load holding on air loss, specify a SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-75
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-75 FAQ
Yes, the SIJ80X150-75 is discontinued. The direct replacement is the SAIJ80X150-75. It shares the identical ISO 15552 mounting interface, 150 mm stroke, 75 mm adjust window, and G3/8 port, while adding an upgraded SAI piston seal.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, giving a usable 75-150 mm window. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-75 replacement — usually within 7-8 hours.