This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1750S, 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 SI160X1750S
The AirTAC SI160 Standard Cylinder SI160X1750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1750mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke1750 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X1750S
- 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 SI160X1750S
The AirTAC SI160X1750S is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a built-in magnet. In this 160 mm bore class it delivers 10053 N of thrust at 0.5 MPa via a G3/4 port. Because the 1750 mm stroke exceeds the 1500 mm standard maximum, this is a non-standard, made-to-order unit. AirTAC replaced the SI line with the SAI family; the SAI160X1750S is the direct replacement, matching the original bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. You can also specify rod materials like SUS304 (B) or high-temp Viton H seals (0-150 C). The original -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI160 Standard Cylinder SI160X1750S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X1750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1750S |
| Bore size | Ø160 mm |
| Stroke | 1750 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 SAI160X1750S 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 SAI160X1750S 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 SI160X1750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×1750 | 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 SI160X1750S Is Used
Heavy Stamp Press Feed
Drives robust 1750 mm strokes to feed thick plate material into heavy stamping presses, utilizing 10053 N of thrust at 0.5 MPa.
Palletizer Pusher Array
Indexes loaded pallets across long conveyor distances, where the 512 kg vertical lift capacity and 160 mm bore handle substantial weights.
Long-Stroke Vertical Lift
Deploys large heavy gates or lifting platforms over 1750 mm, requiring external guide rails to prevent rod bending during travel.
Replacing the Airtac SI160 Standard Cylinder SI160X1750S with the SAI160X1750S
To replace the SI160X1750S, order the SAI160X1750S direct equivalent, confirming the ISO 15552 mounting interface, 160 mm bore, 1750 mm non-standard stroke, and G3/4 port. Retain your original mounting accessory (LB, FA, CA, TC, etc.) and thread option (PT, G, or NPT). When sizing, note the neighboring 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore offers 15708 N. A plain cylinder does not hold load without live air; the cushion only decelerates. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Because 1750 mm exceeds the 1500 mm standard, provide an external guide to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X1750S
- ✓ 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 SI160X1750S FAQ
Yes, the SI160X1750S is discontinued. The direct replacement is the SAI160X1750S. It matches the original ISO 15552 mounting interface, 160 mm bore, 1750 mm stroke, output force, and G3/4 port, so it drops directly into existing fixtures.
The 160 mm bore features a G3/4 port and an M36x2 rod thread. 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X1750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1750S replacement — usually within 7-8 hours.