This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X275-100, 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 SIJ80X275-100
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 275mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X275-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X275-100
- 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 SIJ80X275-100
The AirTAC SIJ80X275-100 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with an 80mm bore and 275mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 100mm on-site, giving a usable extend range of 175-275mm.
The direct replacement is the SAIJ80X275-100, reusing the same ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade introduces a two-piece Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X275-100 |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80X275-100 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 SAIJ80X275-100 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 SIJ80X275-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SIJ80X275-100 Is Used
Variable Depth Drilling
Needs field stroke tuning to set precise 175-275mm extend stops for drilling different material thicknesses without re-plumbing the G3/8 air lines.
Adjustable Diverter Arm
Requires trimming the extend stroke by up to 100mm on-site to deflect varying package widths accurately on a packaging line.
Tiered Stacking Pusher
Uses the external stop screw to quickly shorten the extend stroke for different pallet stack heights, ensuring exact end positioning.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100 with the SAIJ80X275-100
To replace the SIJ80X275-100, map directly to the SAIJ80X275-100, retaining the 100mm adjust window (175-275mm usable extend) and G3/8 port. Mounting options include Basic, FA, LB, and TC. This SKU lacks the -S magnet and cannot accept a magnetic switch. For strokes of 300mm or longer, verify side-load constraints to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X275-100
- ✓ 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 SIJ80X275-100 FAQ
Yes, the SIJ80X275-100 is discontinued. The direct replacement is the SAIJ80X275-100, offering the same ISO 15552 interface, 275mm nominal stroke, 100mm adjust window, and G3/8 port. The SAIJ family also adds an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw provides a 100mm adjust window, allowing the 275mm extend stroke to be shortened to 175mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X275-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X275-100 replacement — usually within 7-8 hours.