This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X100-20S, 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 SIJ63X100-20S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20S 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 SAIJ63X100-20S, 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 → SAIJ63X100-20S
- 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 SIJ63X100-20S
The AirTAC SIJ63X100-20S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ63X100-20S. It uses an external stop screw to trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 80-100 mm from the 100 mm nominal maximum. The 63 mm bore features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable air cushions.
The direct replacement SAIJ63X100-20S retains the exact ISO 15552 mounting interface, bore, stroke, and force, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; cylinders drift on air loss. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X100-20S |
| 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 SAIJ63X100-20S 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 SAIJ63X100-20S 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 SIJ63X100-20S
| 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 SIJ63X100-20S Is Used
End-Stop Tuning for Press Fits
Allows operators to dial in the exact 80-100 mm extend position for pressing bearings, compensating for material thickness variations without changing the cylinder.
Adjustable Product Ejection
Provides a field-tuned extend stroke to push varying carton sizes off a conveyor, adjusting the stop screw on-site to match packaging depth changes.
Variable Depth Forming Stops
Sets precise metal forming or bending depth on the fly, using the 20 mm trim window to alter the final extend endpoint for different batch profiles.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20S with the SAIJ63X100-20S
To replace the discontinued SIJ63X100-20S, order the direct replacement SAIJ63X100-20S, which preserves the 63 mm bore, 100 mm nominal stroke, 20 mm adjust window, G3/8 port, and ISO 15552 mounting. Size both ways using 0.5 MPa push figures: the 50 mm bore yields 982 N, while the 80 mm bore yields 2513 N. The 20 mm adjust window is ideal if your extend stroke needs final on-site tuning between 80 and 100 mm. Mounting options include FA, LB, and TC brackets. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For strokes of 300 mm or longer, verify side-load limits to prevent guide wear. The stop screw sets end position only; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X100-20S
- ✓ 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 SIJ63X100-20S FAQ
Yes, the SIJ63X100-20S is discontinued. The direct replacement is the SAIJ63X100-20S. It shares the same ISO 15552 interface, 63 mm bore, 100 mm stroke, 20 mm adjust window, G3/8 port, and mounting options, while adding an upgraded two Y-shaped one-way piston seal.
The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 80-100 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X100-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X100-20S replacement — usually within 7-8 hours.