This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X300-100, 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 SIJ80X300-100
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X300-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X300-100
- 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 SIJ80X300-100
The AirTAC SIJ80X300-100 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 100 mm on-site, yielding a usable 200-300 mm extension from the 300 mm nominal maximum. This 80 mm bore features a 25 mm rod, M20x1.5 rod thread, G3/8 port, and 36 mm adjustable air cushions at each end. Operating pressure is 0.15-1.0 MPa with a speed range of 30-800 mm/s.
The direct replacement is the SAIJ80X300-100, preserving the ISO 15552 interface, bore, force, and mounting. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet (-S), so it cannot accept legacy CS1-B/DS1-B sensors. The stop screw sets end position only; it is not a load lock, so use SAIL/BSAI or an external rod lock for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-100 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-100 |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-100 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 SAIJ80X300-100 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 SIJ80X300-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SIJ80X300-100 Is Used
Variable Press Stroke
Allows on-site extend stroke tuning up to 100 mm to accommodate different material thicknesses in a pressing operation without changing the cylinder.
Adjustable Diverter Arm
Permits field adjustment of the pusher extension distance when routing varying package sizes on a conveyor line.
Tunable Pallet Stop
Provides a customizable hard stop position for different pallet depths, trimming the extend stroke precisely where needed.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-100 with the SAIJ80X300-100
To replace the discontinued SIJ80X300-100, order the direct replacement SAIJ80X300-100, which keeps the G3/8 port, 25 mm rod, and FA/LB/TC mountings. Choose the 100 mm adjust window if your field stroke tuning requires trimming the maximum 300 mm extension down to 200 mm. Because this SKU lacks the -S magnet, it cannot support position sensing. For the 300 mm stroke, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X300-100
- ✓ 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 SIJ80X300-100 FAQ
Yes, the SIJ80X300-100 is discontinued. The direct replacement is the SAIJ80X300-100. It maintains the same ISO 15552 mounting interface, 80 mm bore, 300 mm nominal stroke, 100 mm adjust window, and G3/8 port. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw window is 100 mm, allowing you to shorten the 300 mm maximum extend stroke down to 200 mm on-site. The stop sets the end position and is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X300-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X300-100 replacement — usually within 7-8 hours.