This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX1000, 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 SI63BX1000
The AirTAC SI63 Standard Cylinder SI63BX1000 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX1000, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX1000
- 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 SI63BX1000
The AirTAC SI63BX1000 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 1000mm stroke. Featuring a SUS304 stainless steel rod for corrosion resistance, it delivers 1559 N push force at 0.5 MPa. The direct replacement is the SAI63BX1000, matching the bore, stroke, force, G3/8 port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Without a -S suffix, this SKU cannot take a magnetic switch. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI63 Standard Cylinder SI63BX1000 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX1000 |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAI63BX1000 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 SAI63BX1000 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 SI63BX1000
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1000 | 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 SI63BX1000 Is Used
Long-Stroke Diversion
Drives large packages across a 1000mm conveyor lane transfer where the SUS304 rod withstands humid washdown environments.
Corrosive Fluid Pusher
Indexes parts through a chemical mist station, leveraging the SUS304 rod to prevent surface degradation over 1000mm travel.
Replacing the Airtac SI63 Standard Cylinder SI63BX1000 with the SAI63BX1000
To replace the SI63BX1000, order the SAI63BX1000. Verify the ISO 15552 mounting interface, 1000mm stroke, M16x1.5 rod thread, and G3/8 port (PT/G/NPT). Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors; order a -S variant if position detection is needed. For sizing alternatives, a 50mm bore gives 982 N push @0.5 MPa, while an 80mm bore yields 2513 N. At 1000mm stroke, prevent rod bending by using an external guide to absorb side loads. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX1000
- ✓ 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 SI63BX1000 FAQ
Yes, the AirTAC SI63BX1000 is discontinued. The direct replacement is the SAI63BX1000. It is dimensionally interchangeable per ISO 15552, retaining the same 63mm bore, 1000mm stroke, G3/8 port, and mounting fixtures.
The G3/8 port bore delivers a push force of 1559 N and pull of 1402 N at 0.5 MPa. At 0.7 MPa push is 2182 N, at 0.9 MPa it is 2805 N, and the theoretical max is 318 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX1000
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX1000 replacement — usually within 7-8 hours.