This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X55-10S, 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 SIJ63X55-10S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X55-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 55mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X55-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke55 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X55-10S
- 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 SIJ63X55-10S
The AirTAC SIJ63X55-10S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and a 55 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 45-55 mm window. The stop sets the end position but is not a load lock. It features a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions. This unit includes a piston magnet (-S) for legacy CS1-B/DS1-B switches.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure. Note that plain cylinders drift on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X55-10S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X55-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X55-10S |
| Bore size | Ø63 mm |
| Stroke | 55 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 SAIJ63X55-10S 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 SAIJ63X55-10S 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 SIJ63X55-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×55 | 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 SIJ63X55-10S Is Used
Clamp Position Trimming
Dialing in the exact clamping reach on machining fixtures where a 10 mm on-site stroke adjustment compensates for part variance without remounting the cylinder.
Transfer Stopper Height
Indexing products on a line by tuning the extend stop within the 45-55 mm window to accommodate slight changes in product profile thickness.
Packaging Pusher Reach
Adjusting the extend end position for a carton pusher to ensure precise placement, using the external stop screw rather than altering base mounting points.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X55-10S with the SAIJ63X55-10S
To replace the discontinued SIJ63X55-10S, order the direct replacement SAIJ63X55-10S, retaining the 63 mm bore, 55 mm nominal stroke, 10 mm adjust window, and -S magnet. Select the 10 mm adjust window if you need field tuning of the extend end-position within a 45-55 mm range. Mounting options include FA, LB, and TC brackets. The -S suffix ensures piston magnet presence for switch sensing. For strokes of 300 mm or longer, verify side-load limits to prevent excessive guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X55-10S
- ✓ 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 SIJ63X55-10S FAQ
Yes, the SIJ63X55-10S is discontinued. The direct replacement is the SAIJ63X55-10S, which shares the same ISO 15552 interface, 63 mm bore, 55 mm stroke, 10 mm adjust window, and G3/8 port. The SAIJ family uses an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 10 mm adjustment window, meaning the usable extend stroke is 45-55 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X55-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X55-10S replacement — usually within 7-8 hours.