This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X700, 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 SI63X700
The AirTAC Airtac SI63 Standard Cylinder SI63X700 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 SAI63X700, 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 → SAI63X700
- 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 SI63X700
The AirTAC SI63X700 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 700mm stroke. It delivers 1559N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI63X700, sharing the same interface, output, and mounting.
This SAI upgrade features a new two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet (-S) so it cannot take CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X700 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X700 |
| 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 SAI63X700 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 SAI63X700 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 SI63X700
| 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 SI63X700 Is Used
Long-Stroke Diversion
Ideal for pushing heavy pallets off a main conveyor line using the full 700mm travel and 1559N thrust at 0.5MPa.
Vertical Pressing
Provides reliable downward clamping force for assembly fixtures, with a safe vertical lift capacity of about 79kg.
Automated Storage
Acts as a heavy-duty actuator for extending load platforms in automated warehousing, requiring external guides for the long rod.
Replacing the Airtac SI63 Standard Cylinder SI63X700 with the SAI63X700
To replace the SI63X700, order the SAI63X700. Confirm the ISO 15552 mounting interface (LB, FA, CA, TC), the 63mm bore, 700mm stroke, and G3/8 port (PT/G/NPT). A 700mm stroke requires external guides to prevent rod bending and side-load damage. If you need load holding on air loss, a plain cylinder drifts; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Neighbouring bores: 50mm gives 982N push, 80mm gives 2513N at 0.5MPa. This no-S SKU cannot accept sensors.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X700
- ✓ 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 SI63X700 FAQ
Yes, the AirTAC SI63X700 is discontinued. The direct replacement is the SAI63X700. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 700mm stroke, output force, G3/8 port, and mounting accessories.
The 63mm bore uses a G3/8 port. Force ratings are: 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa. Operating speed is 30-800mm/s.
Request a Quote for the SAI63X700
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X700 replacement — usually within 7-8 hours.