This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X800-30S, 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 SIJ63X800-30S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X800-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X800-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X800-30S
- 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 SIJ63X800-30S
The AirTAC SIJ63X800-30S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 800mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 30mm on-site, yielding a usable 770-800mm extension window. As this SIJ model is end-of-life, the direct replacement is the SAIJ63X800-30S, matching the ISO 15552 interface, force, and mounting.
The SAIJ successor retains the upgraded SAI piston seal featuring two Y-shaped one-way elements for low start-up pressure and long life. Note the stop screw sets the end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-30S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X800-30S |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAIJ63X800-30S 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 SAIJ63X800-30S 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 SIJ63X800-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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 SIJ63X800-30S Is Used
Variable Length Forming
Allows operators to fine-tune the 770-800mm extend position on-site for metal forming presses requiring exact end-stop calibration without re-mounting hardware.
Adjustable Transfer Diverters
Provides a 30mm on-site stroke trim to alter diverter arm reach on packaging lines handling fluctuating product widths.
Custom Height Pallet Stops
Enables field adjustment of the extend stroke to act as a precise physical stop for varying pallet dimensions in automated storage systems.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-30S with the SAIJ63X800-30S
To replace the discontinued SIJ63X800-30S, order the direct replacement SAIJ63X800-30S, keeping the 63mm bore, 800mm stroke, 30mm adjust window, and -S magnet for legacy CS1-B/DS1-B switches. Choose the 30mm adjust window if you need precise 770-800mm extend tuning. Mounting options include FA, LB, and TC brackets. Because the stroke is 800mm, ensure external guides to prevent rod bending and side loads. The cylinder does not hold loads without live air; use a pilot-operated check valve for suspension.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X800-30S
- ✓ 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 SIJ63X800-30S FAQ
Yes, the SIJ63X800-30S is discontinued. The direct replacement is the SAIJ63X800-30S. It shares the identical ISO 15552 interface, 63mm bore, 800mm stroke, 30mm adjust window, G3/8 port, and mounting options, while adding an upgraded SAI piston seal.
The external stop screw provides a 30mm adjustable window, meaning the 800mm extend stroke can be shortened to 770mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X800-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X800-30S replacement — usually within 7-8 hours.