This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X300S, 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 SI160X300S
The AirTAC SI160 Standard Cylinder SI160X300S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 300mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X300S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X300S
- 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 SI160X300S
The AirTAC SI160X300S is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 300mm stroke. It delivers a robust 10053 N push force at 0.5 MPa. The direct replacement is the SAI160X300S, which matches the exact ISO 15552 mounting interface, bore, stroke, output force, G3/4 port and accessories.
The SAI upgrade features a redesigned piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while a Viton H seal option extends operating temperature to 150 C.
Airtac SI160 Standard Cylinder SI160X300S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X300S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X300S |
| Bore size | Ø160 mm |
| Stroke | 300 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 SAI160X300S 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 SAI160X300S 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 SI160X300S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×300 | 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 SI160X300S Is Used
Heavy Press Clamping
Generates up to 14074 N at 0.7 MPa to secure large metal castings or heavy plates during machining and stamping operations.
Injection Molding Extraction
Provides the long 300mm reach and high pull force required to extract bulky molded components from deep industrial tooling.
Replacing the Airtac SI160 Standard Cylinder SI160X300S with the SAI160X300S
To replace this SI160X300S, order the SAI160X300S keeping the identical 160mm bore, 300mm stroke, M36x2 rod thread, G3/4 port, and ISO 15552 mounting. When sizing, check neighbouring bores: a 200mm bore yields 15708 N push at 0.5 MPa, whereas a 125mm bore provides 6136 N. Because this is a 300mm stroke, prevent rod bending by using an external guide to manage side loads. Note that a standard cylinder drifts without live air; the 50mm adjustable cushion only decelerates at stroke ends. For secure load holding, specify an external pilot check valve or the SAIL/BSAI lock variant. The SAI family also adds the SAIF self-valve option.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X300S
- ✓ 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 SI160X300S FAQ
Yes, the SI160X300S is discontinued. The direct replacement is the SAI160X300S. It is dimensionally interchangeable per the ISO 15552 mounting interface, offering the same 160mm bore, 300mm stroke, output force, G3/4 port and mounting accessories.
At 0.5 MPa it provides 10053 N push and 9425 N pull. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X300S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X300S replacement — usually within 7-8 hours.