This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X100-20, 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 SIJ63X100-20
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20 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 SAIJ63X100-20, 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 → SAIJ63X100-20
- 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 SIJ63X100-20
The AirTAC SIJ63X100-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 80-100 mm window from the 100 mm nominal maximum. The direct replacement is the SAIJ63X100-20, sharing the same interface, force, and mounting.
The SAIJ successor incorporates an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. This SKU has no -S magnet and cannot take a switch. The stop screw sets end position only; it is not a lock, and without live air the piston drifts—use SAIL or an external rod lock for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X100-20 |
| 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 SAIJ63X100-20 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 SAIJ63X100-20 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 SIJ63X100-20
| 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 SIJ63X100-20 Is Used
Press Fit Depth Tuning
Dialing in bearing insertion requires exact extend endpoints. The 20 mm stop screw window trims the 100 mm stroke on-site to hit precise 80-100 mm press depths without swapping cylinders.
Variable Length Diverter
Routing varying package sizes on a line demands flexible actuator ends. Adjusting the extend stroke by up to 20 mm accommodates different carton lengths directly at the conveyor.
Adjustable Stop Positioning
Palletizing cells handling mixed pallet heights benefit from field-tuned stops. The external screw shortens the extend stroke to set exact 80-100 mm stop locations for tier height changes.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X100-20 with the SAIJ63X100-20
To replace the discontinued SIJ63X100-20, order the direct replacement SAIJ63X100-20, keeping the exact 63 mm bore, 100 mm stroke, 20 mm adjust window, and G3/8 port. Choose the 20 mm adjust window if you need precise 80-100 mm extend tuning; a larger window suits deeper field trimming. Mounting interfaces include Basic, FA, LB, and TC. Because this SKU lacks the -S suffix, it has no magnet and cannot accept legacy CS1-B/DS1-B sensors. For strokes at or above 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X100-20
- ✓ 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 SIJ63X100-20 FAQ
Yes, the SIJ63X100-20 is discontinued. The direct replacement is the SAIJ63X100-20, which shares the identical ISO 15552 interface, 63 mm bore, 100 mm nominal stroke, 20 mm adjust window, G3/8 port, and mounting options. The SAIJ family also upgrades the piston seal to a two Y-shaped one-way element for longer life.
The external stop screw provides a 20 mm adjustment window, allowing the extend stroke to be trimmed from the 100 mm nominal maximum down to 80 mm on-site. This stop sets the end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X100-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X100-20 replacement — usually within 7-8 hours.