This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-40, 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 SIJ63X700-40
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-40 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 SAIJ63X700-40, 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 → SAIJ63X700-40
- 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 SIJ63X700-40
The AirTAC SIJ63X700-40 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 40 mm on-site, giving a usable 660-700 mm window from the 700 mm nominal maximum. The 63 mm bore uses a G3/8 port, a Ø20 mm rod with M16x1.5 thread, and 30 mm adjustable cushions.
The direct replacement is the SAIJ63X700-40, matching the ISO 15552 interface, bore, stroke, adjust window, port, and mounting. The SAIJ family introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Note this non-magnetic SKU cannot take a switch, and the stop screw sets end position but is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-40 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-40 |
| 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 SAIJ63X700-40 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 SAIJ63X700-40 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 SIJ63X700-40
| 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 SIJ63X700-40 Is Used
Material Diverting Gates
Tune the 660-700 mm extend stroke on-site by up to 40 mm to precisely set the gate angle for diverting varying package sizes on a sorting line.
Multi-Format Pressing
Adjust the external stop screw to accommodate different workpiece heights without reprogramming the machine controller, pressing up to 935 N safely.
Adjustable End Stops
Set precise mechanical end positions for pallet routing or lifting operations where the exact stopping point must be tweaked during commissioning.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-40 with the SAIJ63X700-40
To replace the discontinued SIJ63X700-40, order the direct replacement SAIJ63X700-40. It retains the ISO 15552 mounting dimensions, allowing reuse of existing FA, LB, or TC brackets. The 40 mm adjust window is ideal if your end-position target varies by up to 40 mm, letting you tune the 660-700 mm extend stroke on-site. Because this is a 700 mm stroke, support the rod to prevent bending and use external guides to manage side loads. This SKU lacks the -S magnet, so it cannot accept legacy CS1-B/DS1-B sensors; confirm sensing needs before ordering. For loads that must be held on air loss, the stop screw will not lock the piston; specify an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X700-40
- ✓ 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 SIJ63X700-40 FAQ
Yes, the SIJ63X700-40 is discontinued. The direct replacement is the SAIJ63X700-40, which shares the same ISO 15552 interface, 63 mm bore, 700 mm stroke, 40 mm adjust window, G3/8 port, and mounting options. The SAIJ family also adds an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the extend stroke from the 700 mm nominal maximum down to 660 mm. The stop sets end position and does not lock the load.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X700-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-40 replacement — usually within 7-8 hours.