This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X400-100, 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 SIJ63X400-100
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X400-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 400mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X400-100, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X400-100
- 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 SIJ63X400-100
The AirTAC SIJ63X400-100 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. It uses an external stop screw to trim the extend stroke by up to 100 mm on-site, giving a usable 300-400 mm window from the 400 mm nominal maximum. The direct replacement is the SAIJ63X400-100, matching the G3/8 port, M16x1.5 rod thread, and 30 mm cushions.
The SAIJ successor retains the ISO 15552 mounting interface so brackets reuse is seamless, and upgrades to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a -S magnet so it cannot take a switch; the external stop sets end position but is not a load lock.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X400-100 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X400-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X400-100 |
| Bore size | Ø63 mm |
| Stroke | 400 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 SAIJ63X400-100 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 SAIJ63X400-100 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 SIJ63X400-100
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SIJ63X400-100 Is Used
Variable Depth Forming
Tunes the extend stroke on-site by up to 100 mm to accommodate different material thicknesses in a single pneumatic press setup.
Adjustable Transfer Pusher
Allows operators to shorten the extend stroke from 400 mm to 300 mm to handle varying package sizes without changing the cylinder.
Variable Position Diverters
Provides field stroke tuning for sorting gates that must extend to multiple specific lengths along a packaging line.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X400-100 with the SAIJ63X400-100
To replace the discontinued SIJ63X400-100, order the direct replacement SAIJ63X400-100, reusing your FA, LB, or TC mounts. The 100 mm adjust window lets you tune the extend stroke down to 300 mm on-site, but the stop screw only sets the end position—it is not a lock. For load holding on air loss, specify an external rod lock or SAIL/BSAI variant. Because the 400 mm stroke invites rod bending, use an external guide to manage side loads. This non-magnetic SKU cannot take sensors.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X400-100
- ✓ 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 SIJ63X400-100 FAQ
Yes, the SIJ63X400-100 is discontinued. The direct replacement is the SAIJ63X400-100. It shares the same ISO 15552 interface, 63 mm bore, 400 mm stroke, 100 mm adjust window, G3/8 port, and mounting options, while upgrading the piston seal.
The external stop screw window is 100 mm, allowing you to trim the extend stroke from the 400 mm maximum down to 300 mm. The stop sets end position and does not lock the load.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X400-100
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X400-100 replacement — usually within 7-8 hours.