This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-50, 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 SIJ80X150-50
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50 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 SAIJ80X150-50, 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 → SAIJ80X150-50
- 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 SIJ80X150-50
The AirTAC SIJ80X150-50 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 50 mm on-site, giving a usable 100-150 mm window from the 150 mm nominal maximum. The direct replacement is the SAIJ80X150-50, retaining the interface, force, and adjustability.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The stop screw sets end position but is not a lock; use SAIL or BSAI variants for held loads. This non-magnetic SKU cannot take a switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-50 |
| 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 SAIJ80X150-50 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 SAIJ80X150-50 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 SIJ80X150-50
| 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 SIJ80X150-50 Is Used
Variable Press Stroke
Trimming the extend stroke by up to 50 mm on-site allows precise positioning of a press head without machining custom spacers.
Adjustable Diverter
Field-tuning the extend end position accommodates changing package sizes on a sorting line within the 100-150 mm window.
Calibrated Stop Gate
An external stop screw sets the exact end position for a pallet stop gate, easily adjusted as payload dimensions vary.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50 with the SAIJ80X150-50
To replace the discontinued SIJ80X150-50, specify the direct replacement SAIJ80X150-50, matching the 80 mm bore, 150 mm nominal stroke, 50 mm adjust window, and G3/8 port. The 50 mm adjust window is ideal for field-tuning the 100-150 mm extend range. Mounting reuses ISO 15552 dimensions for FA, LB, or TC brackets. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch. For strokes at or exceeding 300 mm, verify side-load guide capacity.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-50
- ✓ 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 SIJ80X150-50 FAQ
Yes, the SIJ80X150-50 is discontinued. The direct replacement is the SAIJ80X150-50, which shares the ISO 15552 interface, 80 mm bore, 150 mm stroke, 50 mm adjust window, and G3/8 port.
The external stop screw provides a 50 mm adjust window, allowing the 150 mm extend stroke to be shortened to 100 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-50 replacement — usually within 7-8 hours.