This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX10, 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 SI63BX10
The AirTAC Airtac SI63 Standard Cylinder SI63BX10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 10mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke10 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX10
- 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 SI63BX10
The AirTAC SI63BX10 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 10mm stroke. Delivering 1559 N push force at 0.5 MPa, it features a SUS304 stainless steel piston rod for corrosion resistance. The direct replacement is the SAI63BX10, 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. Because this SKU lacks a magnet, it cannot take a sensor.
Airtac SI63 Standard Cylinder SI63BX10 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX10 |
| Bore size | Ø63 mm |
| Stroke | 10 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 SAI63BX10 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 SAI63BX10 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 SI63BX10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×10 | 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 SI63BX10 Is Used
Short-Stroke Clamping
Ideal for tight clamping tasks in machining fixtures, using the 1559 N push force to secure parts firmly within a compact 10mm travel.
Corrosive Ejecting
The SUS304 stainless rod excels in packaging lines ejecting products where washdowns or moisture would degrade a standard carbon steel rod.
Holding Actuators
Provides reliable positioning for light holding stops in automated assembly, delivering robust force in a compact ISO 15552 footprint.
Replacing the Airtac SI63 Standard Cylinder SI63BX10 with the SAI63BX10
To replace the SI63BX10, order the SAI63BX10. Confirm the ISO 15552 mounting interface, 63mm bore, 10mm stroke, G3/8 port, and your mounting accessory. The -B rod is SUS304 stainless steel. Since this SKU has no magnet, it cannot accept a CS1-B/DS1-B sensor. Sizing both ways: a 50mm bore yields 982 N push @0.5 MPa, while an 80mm bore yields 2513 N. Note that a plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX10
- ✓ 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 SI63BX10 FAQ
Yes, the SI63BX10 is discontinued. The direct replacement is the SAI63BX10. It shares the same ISO 15552 mounting interface, 63mm bore, 10mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The 63mm bore features a G3/8 port. It delivers 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa.
Request a Quote for the SAI63BX10
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX10 replacement — usually within 7-8 hours.