This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X25-30S, 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 SIJ80X25-30S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X25-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 25mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X25-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke25 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X25-30S
- 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 SIJ80X25-30S
The AirTAC SIJ80X25-30S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 25 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, setting the exact end position without adding external stops. It features a 80 mm bore, a 25 mm piston rod, adjustable 36 mm air cushions at each end, a G3/8 port, and an M20x1.5 rod-end thread. The built-in piston magnet (-S) supports legacy CS1-B/DS1-B switches for position sensing.
The direct replacement is the SAIJ80X25-30S, sharing the same ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note that the stop screw sets end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X25-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X25-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X25-30S |
| Bore size | Ø80 mm |
| Stroke | 25 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 SAIJ80X25-30S 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 SAIJ80X25-30S 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 SIJ80X25-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×25 | 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 SIJ80X25-30S Is Used
Short-Stroke Clamping
Adjustable 0-25 mm extend travel allows precise clamping of varied part thicknesses on machining fixtures without swapping cylinders.
Transfer Diverter
Fine-tune the diverter gate end position on-site by up to 30 mm to accommodate different package sizes on a packaging line.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X25-30S with the SAIJ80X25-30S
To replace the discontinued SIJ80X25-30S, order the direct replacement SAIJ80X25-30S, which preserves the 25 mm stroke, 30 mm adjust window, G3/8 port, and ISO 15552 mounting footprint. The 30 mm adjust window is ideal for fine-tuning the 0-25 mm extend travel on-site. Reuse existing FA, LB, or TC mounts. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For this 25 mm stroke, side-load concerns are minimal, but for any stroke >=300 mm, guide rails are recommended to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X25-30S
- ✓ 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 SIJ80X25-30S FAQ
Yes, the SIJ80X25-30S is discontinued. The direct replacement is the SAIJ80X25-30S. It shares the same ISO 15552 interface, 80 mm bore, 25 mm stroke, 30 mm adjust window, G3/8 port, and mounting options. The SAIJ features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw window is 30 mm, allowing you to trim the 25 mm extend stroke on-site. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X25-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X25-30S replacement — usually within 7-8 hours.