This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X150-10, 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.

The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X150-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X150-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X150-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 150mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 10mm on-site, yielding a usable 140-150mm window. As an end-of-life product, the direct replacement is the SAIJ63X150-10, preserving the original ISO 15552 mounting interface, bore, force, and porting.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; without live air, the piston drifts. For held loads, use an external rod lock or the SAIL/BSAI variants. This non-magnetic SKU cannot take a switch.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X150-10 |
| Bore size | Ø63 mm |
| Stroke | 150 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 SAIJ63X150-10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X150-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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).
Allows precise 140-150mm extend adjustment for seating light fittings, ensuring exact contact without re-engineering the entire fixture.
Fine-tunes the extend stop on a package routing gate by up to 10mm to accommodate varying box sizes on the fly.
Provides adjustable end-position control for pallet feed mechanisms, allowing 10mm of field stroke trimming to perfect the halt point.
To replace this discontinued SIJ63X150-10, map directly to the SAIJ63X150-10 by inserting an A after the leading S. The SAIJ direct retains the 10mm adjust window, 150mm nominal stroke, G3/8 port, and 20mm rod. Select the 10mm adjust window if you need minor on-site extend tuning between 140mm and 150mm. Mounting options include FA, LB, and TC brackets. Because this SKU lacks the -S suffix, it has no magnet and cannot accept legacy CS1-B/DS1-B sensors. For strokes of 300mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ63X150-10 is discontinued. The direct replacement is the SAIJ63X150-10. It shares the same ISO 15552 interface, 63mm bore, 150mm stroke, 10mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw allows you to trim the extend stroke by up to 10mm on-site, giving a usable stroke range of 140-150mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X150-10 replacement — usually within 7-8 hours.