This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX65S, 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 SI160BX65S
The AirTAC Airtac SI160 Standard Cylinder SI160BX65S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX65S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX65S
- 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 SI160BX65S
The AirTAC SI160BX65S is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 65mm stroke. Delivering 10053N push force at 0.5MPa via a G3/4 port, it is replaced by the SAI160BX65S. This direct upgrade shares identical ISO 15552 mounting dimensions, bore, stroke and force. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
This specific unit has a SUS304 stainless piston rod (-B) and a magnet (-S) for legacy CS1-B/DS1-B sensors. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAI-only SAIL lock variant.
Airtac SI160 Standard Cylinder SI160BX65S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX65S |
| Bore size | Ø160 mm |
| Stroke | 65 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 SAI160BX65S 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 SAI160BX65S 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 SI160BX65S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×65 | 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 SI160BX65S Is Used
Heavy Press Clamping
Generates 14074N at 0.7MPa to secure large steel fabrications during machining or welding operations.
Injection Mold Ejection
Provides the high push force and rigidity needed to eject heavy molded components from industrial presses.
Replacing the Airtac SI160 Standard Cylinder SI160BX65S with the SAI160BX65S
To replace the discontinued SI160BX65S, order the SAI160BX65S. Confirm the ISO 15552 mounting interface, 160mm bore, 65mm stroke, G3/4 port (PT/G/NPT thread), and mounting accessory. The -S magnet enables current AirTAC switches, while the -B rod provides SUS304 stainless corrosion resistance. Sizing both ways: if 10053N push at 0.5MPa is insufficient, step up to a 200mm bore; if oversized, a 125mm bore offers 6136N. Remember, a standard cylinder does not hold load without live air—the cushion only decelerates. For secure holding, specify the SAIL air-released lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX65S
- ✓ 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 SI160BX65S FAQ
Yes, the SI160BX65S is discontinued. The direct replacement is the SAI160BX65S. It is dimensionally interchangeable per ISO 15552, retaining the same 160mm bore, 65mm stroke, output force, G3/4 port and mounting fixtures.
The 160mm bore provides 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, 18095N at 0.9MPa, and a theoretical max of 2050 kgf at 1.0MPa. Operating speed is 30-500 mm/s. It features a 40mm rod, M36x2 thread, and 50mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX65S replacement — usually within 7-8 hours.