This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X70, 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 SI160X70
The AirTAC Airtac SI160 Standard Cylinder SI160X70 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 70mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X70, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X70
- 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 SI160X70
The AirTAC SI160X70 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 70 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa. The direct replacement is the SAI160X70, which matches the exact bore, stroke, output force, G3/4 port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU lacks a magnet (-S), so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI160 Standard Cylinder SI160X70 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X70 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X70 |
| Bore size | Ø160 mm |
| Stroke | 70 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 SAI160X70 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 SAI160X70 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 SI160X70
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×70 | 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 SI160X70 Is Used
Heavy Press Forming
Provides the high 10053 N thrust at 0.5 MPa needed for stamping and forming robust metal components.
Industrial Clamp Rig
Secures large fabricated weldments during machining using the 160 mm bore and 70 mm short stroke.
Pallet Stop Gate
Acts as a heavy-duty stopper in automated distribution hubs, halting fully loaded pallets.
Replacing the Airtac SI160 Standard Cylinder SI160X70 with the SAI160X70
To replace the discontinued SI160X70, order the SAI160X70 and verify your ISO 15552 mounting interface, 70 mm stroke, and G3/4 port (available in PT, G, or NPT). Since this SKU lacks the -S magnet, it cannot support position sensing. For sizing, the 160 mm bore yields 10053 N push at 0.5 MPa; if less force is needed, the 125 mm bore offers 6136 N. If more force is required, the 200 mm bore provides 15708 N. A plain cylinder drifts on air loss because the cushion only decelerates; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X70
- ✓ 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 SI160X70 FAQ
Yes, the SI160X70 is discontinued. The direct replacement is the SAI160X70. It is dimensionally interchangeable per ISO 15552, keeping the same 160 mm bore, 70 mm stroke, force, G3/4 port, and mounting.
It features a G3/4 port. The force ratings are 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a maximum theoretical force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X70
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X70 replacement — usually within 7-8 hours.