This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX350, 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 SI160BX350
The AirTAC SI160 Standard Cylinder SI160BX350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX350
- 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 SI160BX350
The AirTAC SI160BX350 is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore, 350 mm stroke, and a SUS304 stainless steel piston rod. Delivering 10053 N push force at 0.5 MPa, it is replaced by the SAI160BX350. This direct upgrade retains the exact G3/4 port, M36x2 thread, and ISO 15552 mounting interface.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. This non-magnet SKU cannot take a sensor. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI160 Standard Cylinder SI160BX350 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX350 |
| Bore size | Ø160 mm |
| Stroke | 350 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 SAI160BX350 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 SAI160BX350 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 SI160BX350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×350 | 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 SI160BX350 Is Used
Heavy Stamping
Drives large presses and metal-forming actuators requiring 18095 N thrust at 0.9 MPa with a robust SUS304 rod.
Mold Clamping
Secures heavy industrial injection molds with a 512 kg vertical lift capacity, guided externally to prevent side-loading.
Pallet Diversion
Shifts massive loaded pallets along high-capacity assembly lines, utilizing the 50 mm adjustable cushions to stop smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160BX350 with the SAI160BX350
To replace the SI160BX350, order the SAI160BX350. It drops directly into existing ISO 15552 fixtures with identical bore, 350 mm stroke, G3/4 port, and mounting. Confirm if the SUS304 rod and seal options (like Viton H) are required. This non-magnet version cannot accept CS1-B/DS1-B sensors. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. At 350 mm stroke, use external guides to prevent rod bending and side loads. Air cushions only decelerate; for load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX350
- ✓ 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 SI160BX350 FAQ
Yes, the SI160BX350 is discontinued. The direct replacement is the SAI160BX350. It is dimensionally interchangeable per ISO 15552, keeping the same 160 mm bore, 350 mm stroke, output force, G3/4 port, and mounting accessories.
It features a G3/4 port. Force ratings are: 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 maximum theoretical force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX350
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX350 replacement — usually within 7-8 hours.