This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-40, 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 SIJ80X150-40
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40 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 SAIJ80X150-40, 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 → SAIJ80X150-40
- 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 SIJ80X150-40
The AirTAC SIJ80X150-40 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ80X150-40. It features an 80mm bore, a 25mm piston rod, and a G3/8 port. The external stop screw lets you trim the extend stroke by up to 40mm on-site, giving a usable extend range of 110-150mm.
The exact SAIJ80X150-40 replacement retains the same ISO 15552 mounting interface, bore, stroke, and force, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S) and cannot accept a magnetic switch. The stop screw sets end position only; it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-40 |
| 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 SAIJ80X150-40 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 SAIJ80X150-40 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 SIJ80X150-40
| 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 SIJ80X150-40 Is Used
Variable Pitch Forming
Sheet metal stamping stations that need to alter the extend reach by up to 40mm on-site to accommodate different die heights without changing the entire cylinder.
Adjustable Diverter Gates
Routing diverter arms on a packaging line where the extend stroke must be fine-tuned between 110mm and 150mm to handle varying package widths accurately.
Custom Carton Positioning
End-of-line palletizing stops that require field stroke trimming to push boxes into exact alignment before wrapping, adapting to mixed load dimensions.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40 with the SAIJ80X150-40
To replace the discontinued SIJ80X150-40, order the direct replacement SAIJ80X150-40, ensuring you reuse your existing FA, LB, or TC ISO 15552 mounts. The 40mm adjust window is ideal if your end position needs field tuning between 110mm and 150mm of extend stroke. Because this specific SKU has no -S magnet, it cannot support legacy CS1-B or DS1-B sensors; confirm if sensing is required. For strokes of 300mm or longer, carefully verify side-load limits to prevent rod binding. Remember the stop screw merely sets the end position and does not hold loads on air loss; for load holding, select an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-40
- ✓ 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 SIJ80X150-40 FAQ
Yes, the SIJ80X150-40 is discontinued. The direct replacement is the SAIJ80X150-40, which shares the identical ISO 15552 interface, 80mm bore, 150mm stroke, 40mm adjust window, and G3/8 port. The SAIJ family also upgrades the piston seal to a two Y-shaped one-way element design for longer life.
The external stop screw allows you to trim the extend stroke by up to 40mm on-site, yielding a usable extend range of 110-150mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-40 replacement — usually within 7-8 hours.