This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X175-40S, 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 SIJ80X175-40S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-40S 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 SAIJ80X175-40S, 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 → SAIJ80X175-40S
- 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 SIJ80X175-40S
The AirTAC SIJ80X175-40S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and directly replaced by the SAIJ80X175-40S. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable 135-175 mm extension out of the 175 mm nominal maximum. The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
The SAIJ direct keeps the ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. It beats a fixed SAI with an external stop by integrating the adjustment cleanly within the ISO envelope.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-40S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X175-40S |
| 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 SAIJ80X175-40S 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 SAIJ80X175-40S 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 SIJ80X175-40S
| 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 SIJ80X175-40S Is Used
Variable Depth Spot Facing
Machine multiple casting depths on a single fixture by dialing the extend stroke down 40 mm on-site, avoiding manual shim changes.
Adjustable Transfer Pusher
Tune the pusher end position between 135 mm and 175 mm to route different carton widths without swapping the entire cylinder body.
Tiered Pallet Stops
Field-adjust the stopping height for varying pallet load profiles, using the external screw to set the exact 135-175 mm extend endpoint.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-40S with the SAIJ80X175-40S
To replace the discontinued SIJ80X175-40S, order the exact direct replacement SAIJ80X175-40S, preserving the 175 mm nominal stroke, 40 mm adjust window, G3/8 port, and FA/LB/TC mountings. Choose the 40 mm adjust window when you need on-site extend tuning between 135-175 mm. Select the -S option for the piston magnet. For strokes at or above 300 mm, verify side-load limits to prevent guide wear. Remember the stop screw sets end position only; it does not lock the load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X175-40S
- ✓ 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 SIJ80X175-40S FAQ
Yes, the SIJ80X175-40S is discontinued. The direct replacement is the SAIJ80X175-40S, sharing the same ISO 15552 interface, 175 mm stroke, 40 mm adjust window, and G3/8 port.
The external stop screw provides a 40 mm adjust window, allowing you to trim the extend stroke from 175 mm down to 135 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X175-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X175-40S replacement — usually within 7-8 hours.