This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX35S, 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 SI160AX35S
The AirTAC Airtac SI160 Standard Cylinder SI160AX35S 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 SAI160AX35S, 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 → SAI160AX35S
- 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 SI160AX35S
The AirTAC SI160AX35S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 35 mm stroke. In its class it delivered 10053 N push and 9425 N pull at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160AX35S, which preserves the exact ISO 15552 mounting interface, bore, stroke, output force and port size for seamless fixture integration.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This SI unit features the -A SUS420J2 stainless steel rod for corrosion resistance and a -S magnet for legacy CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160AX35S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX35S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX35S |
| 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 SAI160AX35S 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 SAI160AX35S 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 SI160AX35S
| 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 SI160AX35S Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during heavy machining and press operations.
Injection Moulding Extraction
The SUS420J2 stainless rod withstands humid environments while providing the robust 10053 N push needed to extract large moulded parts.
Pallet Positioning Stops
Short 35 mm stroke provides abrupt, high-force halting of heavy loaded pallets on conveyor lines without occupying excessive space.
Replacing the Airtac SI160 Standard Cylinder SI160AX35S with the SAI160AX35S
To replace the SI160AX35S, order the SAI160AX35S. Confirm the ISO 15552 mounting interface, the 160 mm bore, 35 mm stroke, G3/4 port (PT/G/NPT thread options) and your specific mounting accessory. The -S magnet enables position sensing, though you should upgrade to current AirTAC switches as the SI used legacy CS1-B/DS1-B sensors. If you need higher force, the neighbouring 200 mm bore yields 15708 N push at 0.5 MPa; if you need less, the 125 mm bore provides 6136 N. A plain cylinder drifts on air loss as the cushion only decelerates, so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The -A rod denotes SUS420J2 stainless steel.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX35S
- ✓ 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 SI160AX35S FAQ
Yes, the AirTAC SI160AX35S is discontinued. The direct replacement is the SAI160AX35S. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 35 mm stroke, output force, G3/4 port and mounting interface.
This double-acting cylinder uses 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, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX35S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX35S replacement — usually within 7-8 hours.