This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X150-75S, 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 SIJ63X150-75S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X150-75S 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 SAIJ63X150-75S, 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 → SAIJ63X150-75S
- 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 SIJ63X150-75S
The AirTAC SIJ63X150-75S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and G3/8 port. An external stop screw lets you trim the extend stroke by up to 75mm on-site, giving a usable 75-150mm range. The direct replacement is the SAIJ63X150-75S, matching the bore, stroke, force, and mounting.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop sets end position but is not a lock; use SAIL/BSAI for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-75S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X150-75S |
| 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 SAIJ63X150-75S 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 SAIJ63X150-75S 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 SIJ63X150-75S
| 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 SIJ63X150-75S Is Used
Variable Depth Forming
Dialing in press strokes on the fly. The 75mm trim window lets operators change extend depth from 75 to 150mm without swapping cylinders.
Adjustable Transfer Stops
Handling mixed product sizes on one line. The external stop screw tunes the extend stroke on-site to accommodate varying package dimensions.
Tunable Diverters
Routing items into different lanes.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X150-75S with the SAIJ63X150-75S
Replace the SIJ63X150-75S directly with the SAIJ63X150-75S, reusing your FA, LB, or TC mounts. The -75mm adjust window allows field tuning the extend stroke from 75 to 150mm. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches (current switches on SAIJ). For stroke >=300mm, verify side-load guidance. The stop screw sets position, not a load lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X150-75S
- ✓ 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 SIJ63X150-75S FAQ
Yes, the SIJ63X150-75S is discontinued. The direct replacement is the SAIJ63X150-75S. It shares the identical ISO 15552 interface, 63mm bore, 150mm nominal stroke, 75mm adjust window, G3/8 port, and mounting, but adds an upgraded two Y-shaped one-way piston seal.
The external stop screw trims the extend stroke by up to 75mm, yielding a 75-150mm usable range. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X150-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X150-75S replacement — usually within 7-8 hours.