This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X160CB, 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 SI63X160CB
The AirTAC Airtac SI63 Standard Cylinder SI63X160CB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X160CB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X160CB
- 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 SI63X160CB
The AirTAC SI63X160CB is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 160 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this unit with the SAI63X160CB, a direct replacement sharing the exact ISO 15552 mounting interface, CB clevis mount, output force and stroke.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this SKU lacks a magnet, so it cannot accept legacy CS1-B/DS1-B sensors. The SAI family also adds SAIL, SAIF and BSAI lock variants absent from the SI line.
Airtac SI63 Standard Cylinder SI63X160CB Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X160CB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X160CB |
| Bore size | Ø63 mm |
| Stroke | 160 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 SAI63X160CB 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 SAI63X160CB 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 SI63X160CB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×160 | 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 SI63X160CB Is Used
Clamp Actuation
Provides reliable 1559 N clamping force at 0.5 MPa for securing mid-weight workpieces during machining operations.
Material Diversion
Drives CB clevis-mounted diverter arms on packaging lines, utilizing the 160 mm stroke to redirect products.
Pallet Lift Gates
Actuates safety gates or light pallet stops, safely moving loads around the 79 kg vertical lift threshold.
Replacing the Airtac SI63 Standard Cylinder SI63X160CB with the SAI63X160CB
To replace the SI63X160CB, order the SAI63X160CB. Verify your ISO 15552 interface, 63 mm bore, 160 mm stroke, G3/8 port (PT/G/NPT thread) and CB clevis mounting accessory. Because this specific SKU has no -S magnet, it cannot support position sensing; order an SAI variant with a magnet if you need switches. Sizing checks: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 160 mm stroke, side-load and rod-bending risks are low, but ensure alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X160CB
- ✓ 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 SI63X160CB FAQ
Yes, the SI63X160CB is discontinued. The direct replacement is the AirTAC SAI63X160CB. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 160 mm stroke, G3/8 port, CB mounting and output force.
It features a G3/8 air port and M16x1.5 rod thread. Force output is 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 maximum of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X160CB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X160CB replacement — usually within 7-8 hours.