This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-50, 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 SIJ63X700-50
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X700-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X700-50
- 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 SIJ63X700-50
The AirTAC SIJ63X700-50 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 700mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 650-700mm window. This SIJ model is discontinued; the direct replacement is the SAIJ63X700-50, sharing the same ISO 15552 interface, force, and mounting.
The SAIJ successor retains the upgraded two Y-shaped one-way piston seal elements for low start-up pressure and long life. The external stop sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock or the SAIL/BSAI variants for held loads. At 700mm, mind rod-bending and use external guides to manage side loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-50 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-50 |
| Bore size | Ø63 mm |
| Stroke | 700 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 SAIJ63X700-50 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 SAIJ63X700-50 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 SIJ63X700-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×700 | 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 SIJ63X700-50 Is Used
Variable Depth Boring
Needs field stroke tuning to adjust the extend endpoint precisely for boring varying material depths without re-specifying the entire actuator setup.
Adjustable Transfer Pusher
Requires trimming the extend stroke by up to 50mm on-site to accommodate changing package sizes on a packaging line without swapping cylinders.
Tiered Pallet Stops
Demands an adjustable end position to engage different pallet stack heights, using the external stop screw to set the exact 650-700mm extension.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-50 with the SAIJ63X700-50
To replace the discontinued SIJ63X700-50, order the direct replacement SAIJ63X700-50, matching the 63mm bore, 700mm nominal stroke, 50mm adjust window, and G3/8 port. Choose the 50mm adjust window if you need up to 50mm of on-site extend shortening (650-700mm usable). Mounting options include FA, LB, and TC brackets. This SKU lacks the -S magnet and cannot take a magnetic switch. For the 700mm stroke, add external guides to prevent rod-bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X700-50
- ✓ 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 SIJ63X700-50 FAQ
Yes, the SIJ63X700-50 is discontinued. The direct replacement is the SAIJ63X700-50, which shares the same ISO 15552 interface, 63mm bore, 700mm stroke, 50mm adjust window, and G3/8 port.
The external stop screw offers a 50mm adjust window, allowing a usable extend stroke of 650-700mm. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X700-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-50 replacement — usually within 7-8 hours.