This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X350-10S, 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 SIJ80X350-10S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 350mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X350-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X350-10S
- 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 SIJ80X350-10S
The AirTAC SIJ80X350-10S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 340-350 mm stroke. The nominal 350 mm is the maximum. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches.
This SIJ model is discontinued; the direct replacement is the SAIJ80X350-10S, retaining the exact ISO 15552 interface, force, and port. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note: the stop screw sets end position but is not a load lock; use SAIL or BSAI for holding.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-10S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X350-10S |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80X350-10S 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 SAIJ80X350-10S 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 SIJ80X350-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SIJ80X350-10S Is Used
Press Fit Tuning
Field-trim the extend stroke by up to 10 mm to set precise press-fit depths for bearing insertion without machining hard stops.
Transfer Diverter
Adjust the extend end-position on-site to tune diverter gate reach across varying package widths on the line.
Carton Sealing
Fine-tune the 350 mm extend stroke to accommodate different flap heights, ensuring consistent sealing pressure.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X350-10S with the SAIJ80X350-10S
To replace the discontinued SIJ80X350-10S, order the direct replacement SAIJ80X350-10S, reusing your FA, LB, or TC mounts. The 10 mm adjust window allows precise extend trimming (340-350 mm). The -S suffix provides a piston magnet for CS1-B/DS1-B switches. For the 350 mm stroke, use external guides to prevent rod bending and manage side loads. The stop screw is not a lock; for load holding on air loss, use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X350-10S
- ✓ 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 SIJ80X350-10S FAQ
Yes, the SIJ80X350-10S is discontinued. The direct replacement is the SAIJ80X350-10S. The SAIJ upgrade uses an improved two Y-shaped one-way piston seal for lower start-up pressure.
The external stop screw window is 10 mm, allowing you to trim the extend stroke from 350 mm down to 340 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X350-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X350-10S replacement — usually within 7-8 hours.