This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX35S, 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 SI160BX35S
The AirTAC SI160 Standard Cylinder SI160BX35S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 35mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX35S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke35 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX35S
- 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 SI160BX35S
The AirTAC SI160BX35S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 35 mm stroke. It delivers 10053 N push force at 0.5 MPa and includes a SUS304 stainless steel piston rod (-B) plus a position magnet (-S) for legacy CS1-B/DS1-B sensors. The direct replacement is the SAI160BX35S, which maintains the exact same G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
Upgrading to the SAI keeps the 2050 kgf maximum force but introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. Note that a standard cylinder drifts without live air; for load holding, consider the SAIL lock or BSAI clamp-lock variants the SI line lacked.
Airtac SI160 Standard Cylinder SI160BX35S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX35S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX35S |
| Bore size | Ø160 mm |
| Stroke | 35 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 SAI160BX35S 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 SAI160BX35S 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 SI160BX35S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×35 | 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 SI160BX35S Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure heavy steel plates in a machining fixture, utilizing the SUS304 rod for corrosion resistance in coolant environments.
Stamping Press Feed
Handles robust 35 mm indexing strokes in automated stamping lines, relying on adjustable 50 mm cushions to decelerate heavy tooling loads.
Replacing the Airtac SI160 Standard Cylinder SI160BX35S with the SAI160BX35S
To replace the SI160BX35S, order the SAI160BX35S and verify your ISO 15552 mounting fixtures, G3/4 port, and M36x2 rod thread. The -B suffix ensures you get the SUS304 stainless rod, and the -S suffix provides the magnet for current AirTAC switches (replacing legacy CS1-B/DS1-B sensors). If you need to size both ways, the neighboring 125 mm bore offers 6136 N push at 0.5 MPa, while the 200 mm bore provides 15708 N. Remember that a plain SAI does not hold load on air loss—the 50 mm air cushions only decelerate near stroke end. 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 → SAI160BX35S
- ✓ 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 SI160BX35S FAQ
Yes, the SI160BX35S is discontinued. The direct replacement is the SAI160BX35S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 35 mm stroke, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 air port. It 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 maximum force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX35S
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