This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X900-30, 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 SIJ80X900-30
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X900-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X900-30
- 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 SIJ80X900-30
The AirTAC SIJ80X900-30 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 30 mm on-site, yielding a usable 870-900 mm extension out of the 900 mm maximum. The direct replacement is the SAIJ80X900-30, matching the interface, force, and mounting.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Remember the stop screw sets end position only; it is not a lock, and a plain cylinder drifts on air loss. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X900-30 |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80X900-30 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 SAIJ80X900-30 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 SIJ80X900-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SIJ80X900-30 Is Used
Variable Stroke Pressing
Trimming the extend stroke by up to 30 mm on-site allows precise positioning for pressing tasks where the exact material thickness varies slightly between production batches.
Adjustable Transfer Pusher
A 900 mm transfer pusher that can be fine-tuned down to 870 mm without mechanical disassembly, accommodating changing package sizes on a packaging line.
Long-Reach End Stop Tuning
Setting the exact end-of-stroke position on a long 900 mm actuator to compensate for machine frame tolerance variations during installation.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X900-30 with the SAIJ80X900-30
To replace the discontinued SIJ80X900-30, specify SAIJ80X900-30 for an exact ISO 15552 direct match. Select the 30 mm adjust window if you need on-site extend tuning between 870-900 mm. Mounting options include FA, LB, and TC brackets. This SKU lacks the -S magnet and cannot accept a sensor. Because the 900 mm stroke is long, prevent rod bending by minimizing side loads and using external guides.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X900-30
- ✓ 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 SIJ80X900-30 FAQ
Yes, the SIJ80X900-30 is discontinued. The direct replacement is the SAIJ80X900-30. It shares the same ISO 15552 interface, 80 mm bore, 900 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
The theoretical max is 513 kgf at 1.0 MPa. The external stop screw provides a 30 mm adjust window, allowing the extend stroke to be shortened from 900 mm down to 870 mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X900-30
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