This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X850, 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 SI160X850
The AirTAC SI160 Standard Cylinder SI160X850 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 850mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X850, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X850
- 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 SI160X850
The AirTAC SI160X850 is a discontinued double-acting ISO 15552 profile cylinder with an 850 mm stroke and a 160 mm bore, delivering a thrust of 10053 N at 0.5 MPa. AirTAC replaced this end-of-line unit with the SAI160X850, a direct upgrade retaining the exact interface, port size, and force. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because this specific SKU lacks the -S magnet suffix, it cannot accept a position sensor like the legacy CS1-B or DS1-B switches. The bore dictates a G3/4 air port, an M36x2 rod thread, and 50 mm adjustable cushions at both ends. While the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked, a plain cylinder cannot hold a load without live air—the cushion only decelerates. For load holding, consider an external rod lock or pilot check valve.
Airtac SI160 Standard Cylinder SI160X850 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X850 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X850 |
| Bore size | Ø160 mm |
| Stroke | 850 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 SAI160X850 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 SAI160X850 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 SI160X850
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×850 | 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 SI160X850 Is Used
Heavy Press Forming
Generates 14074 N of push force at 0.7 MPa to seat large stamping dies and form heavy-gauge metal components securely.
Large Mold Actuation
Shifts substantial injection mold bases or heavy industrial tooling with a maximum theoretical output of 2050 kgf.
Replacing the Airtac SI160 Standard Cylinder SI160X850 with the SAI160X850
To replace the discontinued SI160X850, order the SAI160X850 direct equivalent, verifying the ISO 15552 mounting interface, 160 mm bore, 850 mm stroke, and G3/4 port (available in PT, G, or NPT threads). This SKU has no magnet (-S), so it cannot support sensing; if switches are needed, select a magnet-equipped SAI model and use current AirTAC sensors. Sizing checks: the neighbouring 200 mm bore yields 15708 N push at 0.5 MPa, while dropping to 125 mm provides 6136 N. For load holding on air loss, specify the SAIL or BSAI lock variant, or use an external pilot check valve. With an 850 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X850
- ✓ 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 SI160X850 FAQ
Yes, the AirTAC SI160X850 is discontinued. The direct replacement is the SAI160X850. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 850 mm stroke, G3/4 port, and mounting accessories. The SAI simply upgrades the piston seal for lower start-up pressure.
This double-acting cylinder has a G3/4 air port. The thrust ratings are: push 10053 N and pull 9425 N at 0.5 MPa; push 14074 N at 0.7 MPa; push 18095 N 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 SAI160X850
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X850 replacement — usually within 7-8 hours.