This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X150-30S, 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 SIJ63X150-30S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X150-30S 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 SAIJ63X150-30S, 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 → SAIJ63X150-30S
- 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 SIJ63X150-30S
The AirTAC SIJ63X150-30S is a double-acting, double-rod ISO 15552 adjustable-stroke cylinder. This discontinued unit lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 120-150 mm extend window from the 150 mm nominal maximum. The 63 mm bore features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions. The direct replacement is the SAIJ63X150-30S, retaining the same interface, force, and adjust window.
The SAIJ upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The external stop screw sets the end position but is not a load lock; on air loss, the piston drifts. For held loads, use an external rod lock or the SAIL/BSAI lock variants.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-30S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X150-30S |
| 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 SAIJ63X150-30S 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 SAIJ63X150-30S 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 SIJ63X150-30S
| 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 SIJ63X150-30S Is Used
Press Fit Tuning
Allows operators to dial in the exact 120-150 mm extend position for seating bearings without repositioning the entire fixture.
Variable Length Diverter
Adjusts the extend stop on-site to deflect varying package sizes on a line, ensuring positive contact without overtravel.
Adjustable End Stop
Sets a precise physical end position for pallets or trays in a 63 mm bore system, trimming up to 30 mm to accommodate design changes.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-30S with the SAIJ63X150-30S
To replace the discontinued SIJ63X150-30S, order the direct replacement SAIJ63X150-30S, which preserves the G3/8 port, 1500 mm max standard stroke, and 30 mm adjust window. The 30 mm adjust window is ideal for field-tuning the extend position without machining. Mounting interfaces include Basic, FA, LB, and TC. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For stroke lengths of 300 mm or greater, verify side-load bearing loads to prevent excessive rod wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X150-30S
- ✓ 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 SIJ63X150-30S FAQ
Yes, the SIJ63X150-30S is discontinued. The direct replacement is the SAIJ63X150-30S. It shares the same ISO 15552 interface, 63 mm bore, 150 mm stroke, 30 mm adjust window, G3/8 port, and mounting options, while adding an upgraded piston seal.
The external stop screw window is 30 mm, allowing the extend stroke to be shortened from 150 mm down to 120 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X150-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X150-30S replacement — usually within 7-8 hours.