This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX5S, 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 SI160BX5S
The AirTAC Airtac SI160 Standard Cylinder SI160BX5S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX5S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX5S
- 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 SI160BX5S
The AirTAC SI160BX5S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 5 mm stroke. It delivers 10053 N push force at 0.5 MPa, featuring a SUS304 stainless piston rod and a G3/4 air port. The direct replacement is the SAI160BX5S, matching the ISO 15552 mounting interface, force, and porting exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI160 Standard Cylinder SI160BX5S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX5S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX5S |
| Bore size | Ø160 mm |
| Stroke | 5 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 SAI160BX5S 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 SAI160BX5S 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 SI160BX5S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×5 | 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 SI160BX5S Is Used
Heavy-Duty Pressing
Short-stroke high-force pressing operations in automotive assembly, leveraging the 10053 N thrust at 0.5 MPa.
Clamping Fixtures
Rigid clamping of large steel components during machining, utilizing the SUS304 rod for corrosion resistance.
Short-Stroke Ejection
Ejecting heavy molded parts from presses, where the 5 mm stroke provides a rapid, compact ejection motion.
Replacing the Airtac SI160 Standard Cylinder SI160BX5S with the SAI160BX5S
To replace the SI160BX5S, order the SAI160BX5S. Confirm the ISO 15552 mounting interface, 160 mm bore, 5 mm stroke, G3/4 port (PT/G/NPT), and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. If you need load holding on air loss, note the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The -B rod is SUS304 stainless steel.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX5S
- ✓ 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 SI160BX5S FAQ
Yes, the SI160BX5S is discontinued. The direct replacement is the SAI160BX5S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 5 mm stroke, 10053 N force, G3/4 port, and mounting interface.
This double-acting cylinder has a G3/4 air port. At 0.5 MPa it provides 10053 N push and 9425 N pull force. At 0.7 MPa push 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 SAI160BX5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX5S replacement — usually within 7-8 hours.