This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X175-30S, 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 SIJ80X175-30S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X175-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X175-30S
- 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 SIJ80X175-30S
The AirTAC SIJ80X175-30S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 175 mm nominal stroke and a built-in magnetic piston. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 145-175 mm window. It features a 25 mm rod, G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions.
This SIJ model is discontinued; the direct replacement is the SAIJ80X175-30S, matching the ISO 15552 interface, force, and porting. The SAIJ upgrade uses two Y-shaped one-way piston seals for lower start-up pressure and longer life. The stop screw sets end position only; it is not a load lock. For held loads, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X175-30S |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAIJ80X175-30S 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 SAIJ80X175-30S 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 SIJ80X175-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SIJ80X175-30S Is Used
Variable Depth Drilling
A fixture requiring precise 145 to 175 mm drill depths uses the external stop to tune the extend endpoint on-site without swapping cylinders.
Adjustable Carton Flap Folding
Folding mechanisms for mixed carton heights benefit from the 30 mm stroke trim, allowing operators to set the exact flap contact point.
Tuned Diverter Gate
A conveyor diverter needing exact 145-175 mm extension to route varying package widths uses the stop screw to set the final position.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-30S with the SAIJ80X175-30S
To replace the discontinued SIJ80X175-30S, order the direct replacement SAIJ80X175-30S, reusing your existing FA, LB, or TC ISO 15552 mounts. The -30 adjust window lets you tune the extend end-position from 145 to 175 mm on-site. The -S suffix means the magnetic piston is present for legacy CS1-B/DS1-B switches (the SAIJ uses current switches). For this 175 mm stroke, side-load is minimal, but for strokes >=300 mm ensure guide alignment to prevent rod binding. Remember, the stop screw is not a lock; without live air the piston drifts.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X175-30S
- ✓ 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 SIJ80X175-30S FAQ
Yes, the SIJ80X175-30S is discontinued. The direct replacement is the SAIJ80X175-30S. The SAIJ features an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
The theoretical max is 513 kgf at 1.0 MPa. The external stop screw provides a 30 mm adjust window, allowing you to shorten the 175 mm extend stroke down to 145 mm. The stop sets end position only; it does not hold the load on air loss.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X175-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X175-30S replacement — usually within 7-8 hours.