This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X700H, 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 SI63 Standard Cylinder SI63X700H
The AirTAC Airtac SI63 Standard Cylinder SI63X700H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X700H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X700H
- 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 SI63 Standard Cylinder SI63X700H
The AirTAC SI63X700H is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 700mm stroke. Delivering 1559N push force at 0.5MPa, it features a G3/8 port and high-temp Viton H seals rated for 0-150C. This SKU lacks a magnet, so it cannot accept a position switch.
Order the direct replacement SAI63X700H: it matches the ISO 15552 mounting interface, bore, stroke, force and port. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure.
Airtac SI63 Standard Cylinder SI63X700H Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X700H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X700H |
| Bore size | Ø63 mm |
| Stroke | 700 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 SAI63X700H 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 SAI63X700H produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63X700H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×700 | 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 SI63 Standard Cylinder SI63X700H Is Used
High-Temperature Ejection
Uses the Viton H 0-150C seal to eject hot molded parts from press lines without degrading.
Long-Stroke Diversion
Leverages the 700mm stroke to push heavy packages across wide transfer belts.
Pallet Lift Gates
Provides the 1559N push at 0.5MPa needed to raise and lower heavy pallet routing gates.
Replacing the Airtac SI63 Standard Cylinder SI63X700H with the SAI63X700H
To replace this SI63X700H with the SAI63X700H, verify the ISO 15552 mounting fixture, 63mm bore, 700mm stroke, G3/8 port and high-temp Viton H seal. Because this is a non-magnet SKU, it cannot hold a sensor; if switching is needed, order an SAI with the S suffix for CS1-B/DS1-B compatibility. At 0.5MPa the 63mm bore yields 1559N push, while the neighbouring 80mm bore provides 2513N. For the 700mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X700H
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63X700H FAQ
Yes, the SI63X700H is discontinued. The direct replacement is the SAI63X700H. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the same 63mm bore, 700mm stroke, force, and G3/8 port, so it fits existing fixtures directly.
The 63mm bore features a G3/8 air port and provides 1559N push / 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max force of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X700H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X700H replacement — usually within 7-8 hours.