This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X165-30, 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 SIJ63X165-30
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X165-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 165mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X165-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X165-30
- 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 SIJ63X165-30
The AirTAC SIJ63X165-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and 165 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 135-165 mm forward travel. As a direct replacement, the SAIJ63X165-30 matches the interface, force, and adjust window exactly.
The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S), so it cannot accept reed switches. The stop screw sets end position but is not a lock; for load holding use an external rod lock or SAIL/BSAI variant.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X165-30 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X165-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X165-30 |
| Bore size | Ø63 mm |
| Stroke | 165 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 SAIJ63X165-30 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 SAIJ63X165-30 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 SIJ63X165-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×165 | 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 SIJ63X165-30 Is Used
Press Fit Depth Tuning
Dial in exact bearing insertion depth on an assembly line by trimming the 165 mm extend stroke up to 30 mm on-site without machining spacers.
Variable Length Diverter
Adjust the reach of a sorting gate to handle changing package sizes, using the external stop to set the precise 135-165 mm actuation endpoint.
Adjustable Stop Positioning
Fine-tune the physical end-stop for pallet feeding, allowing operators to shorten the stroke by 30 mm to accommodate different pallet widths.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X165-30 with the SAIJ63X165-30
To replace the discontinued SIJ63X165-30, order the direct replacement SAIJ63X165-30, which preserves the 30 mm adjust window, G3/8 port, and ISO 15552 mounting. Choose the 30 mm adjust window if your target extension falls between 135 and 165 mm. Mounting options include FA, LB, and TC brackets. Because this SKU has no -S magnet, it cannot support legacy CS1-B or DS1-B sensors. For strokes of 300 mm or longer, verify side-load limits to prevent guide failure.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X165-30
- ✓ 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 SIJ63X165-30 FAQ
Yes, the SIJ63X165-30 is discontinued. The direct replacement is the SAIJ63X165-30. It shares the same ISO 15552 interface, 63 mm bore, 165 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, but adds an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw offers a 30 mm adjust window, allowing you to shorten the 165 mm extend stroke down to 135 mm on-site. The stop sets the end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X165-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X165-30 replacement — usually within 7-8 hours.