This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X175-100, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100 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 SAIJ63X175-100, 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 → SAIJ63X175-100
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100
The AirTAC SIJ63X175-100 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 100 mm on-site, giving a usable 75-175 mm extension out of the 175 mm nominal maximum. It features a 20 mm rod, M16x1.5 rod thread, G3/8 port, and 30 mm adjustable cushions.
Because this SIJ model is end-of-life, the direct replacement is the SAIJ63X175-100, matching the ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a -S magnet so it cannot take a switch, and the stop screw sets end position rather than locking the load.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X175-100 |
| 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 SAIJ63X175-100 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 SAIJ63X175-100 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 SIJ63X175-100
| 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 SIJ63X175-100 Is Used
Variable Depth Drilling Jig
Tune the 75-175 mm extend stroke on-site to accommodate multiple material thicknesses without swapping the entire actuator assembly.
Adjustable Carton Flap Folder
Field-trim the extend stroke by up to 100 mm to handle varying box sizes on a packaging line, ensuring precise folding without repositioning mounts.
Multi-Position Diverter Gate
Use the external stop screw to set intermediate extend positions for routing different product profiles across a conveyor belt.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100 with the SAIJ63X175-100
To replace the discontinued SIJ63X175-100, order the direct replacement SAIJ63X175-100, reusing your existing FA, LB, or TC ISO 15552 mounts. The 100 mm adjust window allows field tuning the extend stroke down to 75 mm. Because this SKU has no -S suffix, it cannot accept a magnetic switch; add external sensors if needed. For strokes of 300 mm or longer, verify the side-load limits to prevent rod binding. The external stop sets end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X175-100
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X175-100 FAQ
Yes, the SIJ63X175-100 is discontinued. The direct replacement is the SAIJ63X175-100. It shares the same ISO 15552 interface, 63 mm bore, 175 mm stroke, 100 mm adjust window, G3/8 port, and mounting options. The SAIJ features an upgraded two Y-shaped one-way piston seal for longer life and lower start-up pressure.
The theoretical max is 318 kgf at 1.0 MPa. The external stop screw provides a 100 mm adjust window, allowing you to shorten the extend stroke from the 175 mm nominal maximum down to 75 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X175-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X175-100 replacement — usually within 7-8 hours.