This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-20, 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 SIJ80X150-20
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20 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 SAIJ80X150-20, 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 → SAIJ80X150-20
- 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20
The AirTAC SIJ80X150-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 130-150 mm window from the 150 mm nominal maximum. The direct replacement is the SAIJ80X150-20, retaining the same interface, force, and mounting.
The SAIJ successor introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads. This non-magnetic SKU cannot take a switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-20 |
| 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 SAIJ80X150-20 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 SAIJ80X150-20 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 SIJ80X150-20
| 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 SIJ80X150-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 130-150 mm extend position for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke on-site to deflect different package sizes on a line, trimming up to 20 mm as needed.
Adjustable End Stop
Sets a precise physical end position for pallets or workpieces, fine-tuning the 150 mm stroke to the process.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20 with the SAIJ80X150-20
To replace the discontinued SIJ80X150-20, order the direct replacement SAIJ80X150-20, matching the 80 mm bore, 150 mm stroke, 20 mm adjust window, G3/8 port, and M20x1.5 rod thread. Choose the 20 mm adjust window if you need precise 130-150 mm extend tuning on-site. Mounting interfaces (Basic, FA, LB, TC) reuse existing ISO 15552 holes. This non-magnetic SKU lacks a -S sensor groove, so it cannot accept legacy CS1-B/DS1-B switches. For strokes >=300 mm, verify side-load limits to prevent guide wear. The stop screw sets end position but is not a lock; for held loads use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-20
- ✓ 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 SIJ80X150-20 FAQ
Yes, the SIJ80X150-20 is discontinued. The direct replacement is the SAIJ80X150-20. It shares the same ISO 15552 interface, 80 mm bore, 150 mm stroke, 20 mm adjust window, G3/8 port, and mounting options, but adds an upgraded SAI piston seal.
The external stop screw window is 20 mm, allowing the 150 mm extend stroke to be shortened to 130 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-20 replacement — usually within 7-8 hours.