This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-10, 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.

The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-10 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 SAIJ63X700-10, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X700-10 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and 700 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 690-700 mm end position. As an direct replacement, the SAIJ63X700-10 matches the ISO 15552 interface, force, and mounting.
The SAIJ successor upgrades the piston seal to 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 position only—it is not a load lock. On a 700 mm stroke, use external guides to prevent rod bending.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-10 |
| 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 SAIJ63X700-10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X700-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| 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).
Trimming the extend stroke by up to 10 mm on-site allows operators to dial in the exact bottoming position for a press fit without machining hard stops.
Adjusting the extend end position precisely lets a diverter arm match varying product widths on the fly, ensuring correct routing without repositioning the cylinder.
A 10 mm external stop adjustment provides the flexibility to fine-tune a pallet stop gate's extended position to accommodate slight pallet length variations.
To replace the discontinued SIJ63X700-10, order the direct replacement SAIJ63X700-10, which preserves the G3/8 port, 20 mm rod, and ISO 15552 mounting. Size both ways using 0.5 MPa push force: the 50 mm bore yields 982 N, while the 80 mm bore yields 2513 N, compared to this 63 mm bore's 1559 N. The 10 mm adjust window is ideal for final extend trimming, but never use the stop screw as a load lock; for held loads, specify an external rod lock or the SAIL/BSAI variants. Because the 700 mm stroke exceeds 300 mm, ensure external guides to manage side-load and rod-bending risks. This non-magnetic model lacks the -S suffix and cannot accept position sensors.
Replacement checklist
Yes, the SIJ63X700-10 is discontinued. The direct replacement is the SAIJ63X700-10, which shares the identical 63 mm bore, 700 mm stroke, 10 mm adjust window, G3/8 port, and ISO 15552 mounting interface.
The external stop screw offers a 10 mm adjust window, shortening the extend stroke from 700 mm down to 690 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-10 replacement — usually within 7-8 hours.