This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X100-75S, 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 SIJ63X100-75S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X100-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X100-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X100-75S
- 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 SIJ63X100-75S
The AirTAC SIJ63X100-75S is a double-acting, double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 25-100 mm extension from the 100 mm nominal maximum.
This SIJ model is discontinued; the direct replacement is the SAIJ63X100-75S, retaining the same interface, force, and adjust window. The SAIJ upgrades to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets end position only—it is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-75S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X100-75S |
| Bore size | Ø63 mm |
| Stroke | 100 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 SAIJ63X100-75S 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 SAIJ63X100-75S 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 SIJ63X100-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×100 | 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 SIJ63X100-75S Is Used
Variable Depth Drilling
Adjusts the extend stroke on-site to match varying material thicknesses without swapping the entire actuator.
Variable Height Sealing
Tunes the extend end-position to accommodate different package sizes on a single sealing head.
Adjustable Diverter Stroke
Trims the actuator extension to route different product widths accurately without repositioning the mount.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-75S with the SAIJ63X100-75S
To replace the discontinued SIJ63X100-75S, order the direct replacement SAIJ63X100-75S, keeping the 75 mm adjust window (25-100 mm usable extend) and -S magnet for legacy CS1-B/DS1-B switches. Reuse existing FA, LB, or TC ISO 15552 mounts. For strokes >=300 mm, verify side-load limits to prevent guide wear. Remember the external stop trims extension only; it does not lock the load on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X100-75S
- ✓ 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 SIJ63X100-75S FAQ
Yes, the SIJ63X100-75S is discontinued. The direct replacement is the SAIJ63X100-75S. It shares the same ISO 15552 interface, 63 mm bore, 100 mm nominal stroke, 75 mm adjust window, G3/8 port, and mounting options, while upgrading the piston seal to a two Y-shaped one-way element design.
The external stop screw provides a 75 mm adjust window, allowing you to shorten the extend stroke from the 100 mm maximum down to 25 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X100-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X100-75S replacement — usually within 7-8 hours.