This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX160S, 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 SI160BX160S
The AirTAC SI160 Standard Cylinder SI160BX160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke160 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX160S
- 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 SI160BX160S
The AirTAC SI160BX160S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 160 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the direct replacement SAI160BX160S, sharing the exact interface, force, and mounting. This unit includes a SUS304 stainless piston rod (-B) and a magnet (-S) for legacy CS1-B/DS1-B sensors.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note that a plain cylinder drifts without live air; use an external rod lock or the SAIL/BSAI lock variant for load holding.
Airtac SI160 Standard Cylinder SI160BX160S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX160S |
| Bore size | Ø160 mm |
| Stroke | 160 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 SAI160BX160S 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 SAI160BX160S 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 SI160BX160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×160 | 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 SI160BX160S Is Used
Heavy Stamping Press
Drives large tonnage stamping and forming dies using its 14074 N push force at 0.7 MPa, relying on the 50 mm cushions to absorb heavy impact.
Large Mold Clamping
Secures heavy injection molds in place using the SUS304 stainless rod, ensuring corrosion resistance in humid production environments.
Replacing the Airtac SI160 Standard Cylinder SI160BX160S with the SAI160BX160S
To replace the SI160BX160S, order the SAI160BX160S. It drops into existing fixtures per the ISO 15552 mounting interface, matching the 160 mm bore, 160 mm stroke, 10053 N output, G3/4 port, and M36x2 rod thread. Confirm your mounting accessory (LB, FA, TC) and the -S magnet for current AirTAC switches. Sizing both ways: this bore yields 10053 N at 0.5 MPa, while a 200 mm bore offers 15708 N. Because this is a plain double-acting cylinder, it will not hold a load on air loss—the 50 mm cushions only decelerate. For load holding, specify the SAIL or BSAI lock variant, or an external pilot check valve. For any stroke >= 300 mm, add external guide rails to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX160S
- ✓ 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 SI160BX160S FAQ
Yes, the SI160BX160S is discontinued. The direct replacement is the SAI160BX160S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160 mm bore, stroke, force, G3/4 port, and mounting accessories.
The 160 mm bore provides 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. Operating speed is 30-500 mm/s, and it uses a G3/4 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX160S replacement — usually within 7-8 hours.