This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X200-30, 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 SIJ63X200-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X200-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ63X200-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 200mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 170-200mm stroke. The direct replacement is the SAIJ63X200-30, matching the interface, force, and mounting.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note: this SKU lacks a -S magnet, so it cannot take a switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X200-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X200-30 |
| Bore size | Ø63 mm |
| Stroke | 200 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 SAIJ63X200-30 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 SAIJ63X200-30 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. |
| ×200 | 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 30mm on-site allows precise depth control for drilling operations without swapping cylinders.
Field-tuning the 170-200mm extend window accommodates varying package sizes on a conveyor line without mechanical rework.
Dialing in the exact end position on-site ensures accurate locating pins for pallets that require slight positional adjustments.
To replace the discontinued SIJ63X200-30, order the direct replacement SAIJ63X200-30, keeping the exact 200mm nominal stroke and 30mm adjust window. Reuse FA, LB, or TC ISO 15552 mounts. Since this SKU lacks a -S magnet, it cannot accept a magnetic switch; add -S if sensing is needed. For stroke lengths >=300mm, verify side-load limits. The external stop sets end position but is not a lock; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SIJ63X200-30 is discontinued. The direct replacement is the SAIJ63X200-30, offering the same ISO 15552 interface, 200mm stroke, 30mm adjust window, G3/8 port, and mounting. The SAIJ family uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw provides a 30mm adjust window, allowing the extend stroke to be shortened from the 200mm maximum down to 170mm on-site. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X200-30 replacement — usually within 7-8 hours.