This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X175-75, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X175-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X175-75
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75
The AirTAC SIJ63X175-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable 100-175 mm window. The direct replacement is the SAIJ63X175-75, retaining the same interface, force, and mounting.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU has no -S magnet and cannot take a switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X175-75 |
| Bore size | Ø63 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ63X175-75 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X175-75 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 Is Used
Variable Depth Pressing
Allows operators to fine-tune the extend end position on-site by up to 75 mm for pressing assemblies to varying depths without swapping cylinders.
Adjustable Diverter Stroke
Accommodates changing package sizes on a line by trimming the extend stroke down to 100 mm, ensuring the diverter meets exact routing requirements.
Customizable End Stops
Provides a 100-175 mm extend window for packaging feeds where the physical end-stop position must be altered during format changeovers.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 with the SAIJ63X175-75
To replace the SIJ63X175-75, order the direct replacement SAIJ63X175-75. Choose the 75 mm adjust window when you need on-site flexibility to shorten the extend stroke from the 175 mm maximum down to 100 mm. Mounting interfaces (FA, LB, TC) reuse your existing ISO 15552 fixtures. Because this SKU lacks the -S suffix, it has no magnet and cannot support legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, verify side-load guiding. Remember the stop screw is not a lock; for load holding on air loss, specify a SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X175-75
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-75 FAQ
Yes, the SIJ63X175-75 is discontinued. The direct replacement is the SAIJ63X175-75, which shares the identical ISO 15552 interface, 175 mm stroke, 75 mm adjust window, G3/8 port, and mounting options.
The external stop screw allows you to trim the extend stroke by up to 75 mm on-site, yielding a usable 100-175 mm window. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X175-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X175-75 replacement — usually within 7-8 hours.