This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX45, 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 SI160BX45
The AirTAC Airtac SI160 Standard Cylinder SI160BX45 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 45mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX45, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke45 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX45
- 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 SI160BX45
The AirTAC SI160BX45 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 45 mm stroke. It delivers 10053 N push force at 0.5 MPa. The direct replacement is the SAI160BX45, retaining the exact interface, G3/4 port, and M36x2 rod thread.
This SKU features a SUS304 stainless steel rod for corrosion resistance but lacks a magnet, meaning it cannot accept position switches. The SAI upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure.
Airtac SI160 Standard Cylinder SI160BX45 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX45 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX45 |
| Bore size | Ø160 mm |
| Stroke | 45 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 SAI160BX45 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 SAI160BX45 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 SI160BX45
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×45 | 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 SI160BX45 Is Used
Heavy Press Operations
Drives large stamping or forming presses requiring high force, utilizing the 10053 N push capacity at 0.5 MPa.
Robotic Clamping Jigs
Secures oversized structural components during machining, relying on the robust 40 mm SUS304 stainless rod.
Industrial Material Lowering
Controls the descent of heavy 500 kg payloads, using adjustable 50 mm air cushions to decelerate smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160BX45 with the SAI160BX45
To replace the SI160BX45, order the SAI160BX45 ensuring the ISO 15552 mounting interface, 45 mm stroke, and G3/4 port match your fixture. Because this SKU has no magnet, it cannot support sensors; add the SAI magnet suffix if position detection is needed. For heavy loads, note the 14074 N push force at 0.7 MPa, but step down to a 125 mm bore if 6136 N suffices. A plain cylinder drifts on air loss, so specify the SAIL lock variant or an external pilot check valve for load holding. The SUS304 rod is standard here; choose carbon steel if corrosion is not a concern.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX45
- ✓ 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 SI160BX45 FAQ
Yes, the AirTAC SI160BX45 is discontinued. The direct replacement is the SAI160BX45, which shares the same ISO 15552 mounting interface, 160 mm bore, 45 mm stroke, output force, and G3/4 port.
The G3/4 ported 160 mm bore generates 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N at 0.9 MPa, and a maximum theoretical force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX45
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX45 replacement — usually within 7-8 hours.