This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1850, 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 SI160X1850
The AirTAC SI160 Standard Cylinder SI160X1850 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1850mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1850, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke1850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X1850
- 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 SI160X1850
The AirTAC SI160X1850 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1850 mm stroke. Generating 10053 N push force at 0.5 MPa, it is replaced directly by the SAI160X1850. This direct successor shares the exact ISO 15552 mounting interface, G3/4 port, and output force. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this 1850 mm length is a non-standard stroke exceeding the 1500 mm maximum, requiring external guides to prevent rod bending.
Because this specific SKU lacks the -S magnet, it cannot accept a position sensor. For high-temperature environments up to 150 C, specify the Viton H seal option. The SAI family also introduces SAIL and BSAI lock variants absent in the legacy SI line.
Airtac SI160 Standard Cylinder SI160X1850 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X1850 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1850 |
| Bore size | Ø160 mm |
| Stroke | 1850 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 SAI160X1850 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 SAI160X1850 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 SI160X1850
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×1850 | 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 SI160X1850 Is Used
Heavy Material Lifts
Drives large fabricated panels or heavy bulk containers over long 1850 mm vertical distances using 10053 N of thrust at 0.5 MPa.
Large Press Ejection
Ejects formed metal or composite parts from deep hydraulic press beds, utilizing the 50 mm adjustable cushions for smooth deceleration.
Pallet Transfer
Shifts heavy automotive pallets across wide assembly cells, requiring external guide rails to support the extended 1850 mm rod.
Replacing the Airtac SI160 Standard Cylinder SI160X1850 with the SAI160X1850
To replace the SI160X1850, order the SAI160X1850. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.) and the G3/4 air port. This 1850 mm stroke is non-standard (exceeding the 1500 mm max) and made-to-order; you must use an external guide to prevent rod bending and side-load damage over this long distance. Since this SKU has no -S magnet, it cannot take a CS1-B/DS1-B sensor. If you need to downsize, a 125 mm bore yields 6136 N push at 0.5 MPa; if you need more force, a 200 mm bore yields 15708 N. A plain cylinder will not hold a load without air; use an external rod lock or pilot check valve, or choose the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X1850
- ✓ 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 SI160X1850 FAQ
Yes, the AirTAC SI160X1850 is discontinued and end-of-life. The direct replacement is the SAI160X1850. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 1850 mm stroke, G3/4 port, and mounting interface, so it fits existing fixtures directly.
The 160 mm bore features a G3/4 port and a 40 mm rod. 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X1850
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1850 replacement — usually within 7-8 hours.