This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX105S, 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 SI160 Standard Cylinder SI160BX105S
The AirTAC SI160 Standard Cylinder SI160BX105S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 105mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX105S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke105 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX105S
- 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 SI160 Standard Cylinder SI160BX105S
The AirTAC SI160BX105S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 105 mm stroke. It features a SUS304 stainless steel piston rod and delivers 10053 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI160BX105S, a direct replacement retaining the exact ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The original SI -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches.
Airtac SI160 Standard Cylinder SI160BX105S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX105S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX105S |
| Bore size | Ø160 mm |
| Stroke | 105 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160BX105S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160BX105S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160BX105S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×105 | 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 SI160 Standard Cylinder SI160BX105S Is Used
Heavy Pressing
Applies 14074 N of thrust at 0.7 MPa for seating large bearings or forming heavy gauge metal components.
Clamp Fixtures
Secures oversized workpieces in machining centers where the SUS304 rod resists corrosion from coolant.
Replacing the Airtac SI160 Standard Cylinder SI160BX105S with the SAI160BX105S
To replace the SI160BX105S, order the SAI160BX105S and confirm the ISO 15552 mounting interface, 105 mm stroke, G3/4 port, and mounting accessory match your fixture. The -B rod denotes SUS304 stainless steel, and the -S indicates a piston magnet for positioning sensors. If you need to resize, neighbouring bores offer different force classes, but this 160 mm bore yields a theoretical maximum of 2050 kgf at 1.0 MPa. Note that a plain cylinder drifts on air loss because the 50 mm adjustable cushions only decelerate near stroke ends; for load holding, specify an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX105S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160BX105S FAQ
Yes, the SI160BX105S is discontinued. The direct replacement is the SAI160BX105S. It shares the exact ISO 15552 mounting interface, 160 mm bore, 105 mm stroke, output force, G3/4 port, and accessories, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa the push force is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX105S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX105S replacement — usually within 7-8 hours.