This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1200S, 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 SI160X1200S
The AirTAC SI160 Standard Cylinder SI160X1200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1200mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke1200 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X1200S
- 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 SI160X1200S
The AirTAC SI160X1200S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 1200 mm stroke. It delivers 10053 N push force at 0.5 MPa, utilizes a G3/4 port, and includes a magnetic piston for position sensing. AirTAC replaced this legacy unit with the SAI160X1200S, a direct upgrade retaining the exact ISO 15552 mounting interface, stroke, and output force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original SI utilized CS1-B/DS1-B sensors, whereas the current SAI family uses modern AirTAC switches and introduces SAIL and BSAI lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160X1200S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X1200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1200S |
| Bore size | Ø160 mm |
| Stroke | 1200 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 SAI160X1200S 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 SAI160X1200S 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 SI160X1200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×1200 | 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 SI160X1200S Is Used
Heavy Press Actuation
Drives large press dies requiring high force, utilizing the 10053 N push capacity at 0.5 MPa to form or stamp heavy industrial materials.
Pallet Diversion
Extends 1200 mm to shift massive pallets between parallel heavy-duty conveyor lines, relying on the 512 kg vertical lift margin for safe load manipulation.
Large Lift Gates
Actuates oversized loading dock gates or industrial scissor lifts, taking advantage of the long stroke and ISO 15552 profile barrel rigidity.
Replacing the Airtac SI160 Standard Cylinder SI160X1200S with the SAI160X1200S
To replace the discontinued SI160X1200S, order the SAI160X1200S ensuring the ISO 15552 mounting interface, 160 mm bore, 1200 mm stroke, and G3/4 port match your existing fixture. Confirm your thread standard (PT, G, or NPT) and mounting accessory (LB, FA, TC, etc.). The -S suffix indicates a magnetic piston, so verify you are using compatible switches; the legacy CS1-B/DS1-B sensors are superseded by current AirTAC switches on the SAI. If sizing alternatives, a 200 mm bore offers more force, while a 125 mm bore provides 6136 N push at 0.5 MPa. Because this is a 1200 mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. A plain cylinder will not hold a load on air loss; for secure holding, consider the SAIL or BSAI lock variants, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X1200S
- ✓ 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 SI160X1200S FAQ
Yes, the SI160X1200S is discontinued. The direct replacement is the AirTAC SAI160X1200S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 1200 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The cylinder operates at 30-500 mm/s. Force ratings include 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 of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X1200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1200S replacement — usually within 7-8 hours.