This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX150S, 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 SI160BX150S
The AirTAC SI160 Standard Cylinder SI160BX150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX150S
- 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 SI160BX150S
The AirTAC SI160BX150S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 150 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a SUS304 stainless piston rod (-B) and a built-in magnet (-S) for legacy CS1-B/DS1-B sensors. The direct replacement is the SAI160BX150S, matching the G3/4 port, M36x2 thread, and 50 mm cushions.
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 and BSAI lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160BX150S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX150S |
| Bore size | Ø160 mm |
| Stroke | 150 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 SAI160BX150S 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 SAI160BX150S 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 SI160BX150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×150 | 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 SI160BX150S Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during machining or welding operations.
Pallet Lift Actuation
Lifts heavy loads with a safe working capacity around 6032 N, ideal for robust automated material handling.
Injection Mould Ejection
Provides the high force and smooth 50 mm cushioned stroke needed to eject dense plastic parts from heavy tooling.
Replacing the Airtac SI160 Standard Cylinder SI160BX150S with the SAI160BX150S
To replace the SI160BX150S, order the SAI160BX150S. Verify the ISO 15552 mounting interface, 150 mm stroke, G3/4 port, and -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). The -B rod is SUS304 stainless steel. Sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; sizing up, a 200 mm bore yields 15708 N. Note: a plain cylinder drifts on air loss—the cushion only decelerates. For held loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Viton H seals raise the temperature range to 0-150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX150S
- ✓ 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 SI160BX150S FAQ
Yes, the SI160BX150S is discontinued. The direct replacement is the SAI160BX150S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 150 mm stroke, output force, G3/4 port, and mounting fixtures.
It has a G3/4 air port. Force ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX150S replacement — usually within 7-8 hours.