This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X150-40S, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S 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 SAIJ63X150-40S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X150-40S
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S
The AirTAC SIJ63X150-40S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable 110-150 mm range. The direct replacement is the SAIJ63X150-40S, matching the interface, force, and mounting.
The SAIJ upgrade uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The stop screw sets end position but is not a load lock; use an external rod lock or SAIL variant for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X150-40S |
| 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 SAIJ63X150-40S 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 SAIJ63X150-40S 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 SIJ63X150-40S
| 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).
Where the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S Is Used
Variable Depth Forming
Allows on-site extend stroke tuning up to 40 mm to accommodate different material thicknesses in pressing operations without swapping cylinders.
Adjustable Push-off Stops
Provides precise on-site end-position adjustment for diverter arms handling varied package sizes on a packaging line.
Tiered Pallet Positioning
Trims the extend stroke to adapt to varying pallet heights during loading, ensuring accurate placement without reprogramming.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S with the SAIJ63X150-40S
To replace the discontinued SIJ63X150-40S, order the direct replacement SAIJ63X150-40S. Choose the 40 mm adjust window to cover your exact extend stop. Reuse FA, LB, or TC ISO 15552 mounts. The -S suffix provides a piston magnet for CS1-B/DS1-B switches. For stroke lengths over 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X150-40S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-40S FAQ
Yes, the SIJ63X150-40S is discontinued. The direct replacement is the SAIJ63X150-40S, which shares the same ISO 15552 interface, 150 mm stroke, 40 mm adjust window, G3/8 port, and mounting options.
The external stop screw window is 40 mm, allowing you to shorten the 150 mm extend stroke down to 110 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X150-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X150-40S replacement — usually within 7-8 hours.