This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX165S, 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 SI160BX165S
The AirTAC SI160 Standard Cylinder SI160BX165S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX165S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX165S
- 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 SI160BX165S
The AirTAC SI160BX165S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore, 165 mm stroke, and a SUS304 stainless steel rod. Delivering 10053 N push force at 0.5 MPa, it is replaced by the SAI160BX165S. This direct successor matches the exact bore, stroke, 2050 kgf max force, G3/4 port, and ISO 15552 mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. Note this 165 mm stroke is non-standard. A plain cylinder drifts on air loss; for load holding, use the SAIL lock, BSAI clamp-lock, or external pilot check valve.
Airtac SI160 Standard Cylinder SI160BX165S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX165S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX165S |
| Bore size | Ø160 mm |
| Stroke | 165 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 SAI160BX165S 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 SAI160BX165S 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 SI160BX165S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×165 | 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 SI160BX165S Is Used
Heavy Press Clamping
Generates up to 18095 N at 0.9 MPa to secure heavy metal fabrications during stamping or machining operations.
Automated Assembly Line
Drives large industrial platens and heavy tooling, utilizing the SUS304 stainless rod for corrosive plant environments.
Replacing the Airtac SI160 Standard Cylinder SI160BX165S with the SAI160BX165S
To replace the SI160BX165S, order the SAI160BX165S, confirming the ISO 15552 mounting interface, 160 mm bore, 165 mm non-standard stroke, G3/4 port, and mounting accessories. The -B rod is SUS304 stainless, and the -S magnet works with CS1-B/DS1-B switches (SAI uses current switches). For sizing both ways: neighbouring bores are 125 mm (6136 N push @0.5 MPa) and 200 mm (15708 N push). At 0.5 MPa this bore yields 10053 N push and 9425 N pull. A plain cylinder does not hold load without live air; the cushion only decelerates. For secure holding, specify the SAIL air-released lock, BSAI clamp-lock, or an external rod lock. Since 165 mm is non-standard, verify lead times. For any stroke over 300 mm, guide the load to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX165S
- ✓ 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 SI160BX165S FAQ
Yes, the SI160BX165S is discontinued. The direct replacement is the SAI160BX165S. It shares the same ISO 15552 mounting interface, 160 mm bore, 165 mm stroke, G3/4 port, and output force, fitting existing fixtures directly.
The G3/4 port bore delivers 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. It operates at 30-500 mm/s with a 50 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX165S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX165S replacement — usually within 7-8 hours.