This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X800-20, 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 SIJ63X800-20
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X800-20 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 SAIJ63X800-20, 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 → SAIJ63X800-20
- 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 SIJ63X800-20
The AirTAC SIJ63X800-20 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and 800 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 780-800 mm extension. The stop sets the end position; it is not a load lock. This discontinued model uses a G3/8 port, M16x1.5 rod thread, and 30 mm adjustable cushions.
The direct replacement is the SAIJ63X800-20, matching the interface, force, and mounts. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure. This non-magnet SKU cannot take a switch. For 800 mm strokes, use external guides to prevent rod bending.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-20 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X800-20 |
| 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 SAIJ63X800-20 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 SAIJ63X800-20 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 SIJ63X800-20
| 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 SIJ63X800-20 Is Used
Transfer Line Diverter
Needs field stroke tuning to dial in the 780-800 mm extend position precisely as product sizes vary on the belt.
Long-Reach Press Feed
Uses the 20 mm external stop to fine-tune the final extend stop position without reprogramming the machine cycle.
High-Bay Pusher Arm
Requires on-site stroke trimming to set the exact 780 mm ejection distance for varied pallet depths.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X800-20 with the SAIJ63X800-20
To replace the discontinued SIJ63X800-20, order the direct replacement SAIJ63X800-20. Choose the 20 mm adjust window if you need 780-800 mm end-position tuning. Mounting interfaces (FA, LB, TC) are ISO 15552 reusable. Without a -S suffix, this SKU lacks a magnet and cannot support legacy CS1-B/DS1-B sensors. For the 800 mm stroke, add external guides to manage side-load and rod-bending. A plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X800-20
- ✓ 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 SIJ63X800-20 FAQ
Yes, the SIJ63X800-20 is discontinued. The direct replacement is the SAIJ63X800-20, offering the same ISO 15552 interface, 63 mm bore, 800 mm stroke, 20 mm adjust window, and G3/8 port.
The external stop screw window is 20 mm (usable extend 780-800 mm). Speed is 30-800 mm/s. The stop sets end position and is not a load lock; use an external rod lock for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X800-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X800-20 replacement — usually within 7-8 hours.