This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X300, 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 SI160X300
The AirTAC SI160 Standard Cylinder SI160X300 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 SAI160X300, 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 → SAI160X300
- 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 SI160X300
The AirTAC SI160X300 is a discontinued double-acting ISO 15552 profile cylinder, delivering a push force of 10053 N at 0.5 MPa through its 160 mm bore and 300 mm stroke. The direct replacement is the SAI160X300, which preserves the exact interface, porting, and mounting fixtures.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. Note this non-magnet SKU cannot accept a sensor, and the G3/4 port is fixed by the bore size.
Airtac SI160 Standard Cylinder SI160X300 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X300 |
| 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 SAI160X300 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 SAI160X300 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 SI160X300
| 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 SI160X300 Is Used
Heavy Press Forming
Applies the 14074 N push force at 0.7 MPa to form thick metal components, utilizing the 300mm stroke for deep draw operations.
Large Mold Clamping
Secures substantial injection molds using the 160mm bore power, requiring external guides to manage the 300mm stroke length safely.
Replacing the Airtac SI160 Standard Cylinder SI160X300 with the SAI160X300
To replace the SI160X300, order the SAI160X300 ensuring the ISO 15552 mounting interface, 160mm bore, 300mm stroke, and G3/4 port match your fixture. Neighbouring bores are 125mm (6136N push @0.5MPa) and 200mm (15708N push @0.5MPa). Because this is a non-magnet SKU, it cannot take a CS1-B/DS1-B sensor. A plain cylinder drifts on air loss as the 50mm cushion only decelerates; use a pilot check valve or SAIL/BSAI lock variant to hold loads. For this 300mm stroke, use external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X300
- ✓ 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 SI160X300 FAQ
Yes, the SI160X300 is discontinued. The direct replacement is the SAI160X300. It is dimensionally interchangeable per ISO 15552, retaining the same 160mm bore, 300mm stroke, force, G3/4 port, and mounting accessories.
The G3/4 port is fixed by the 160mm bore. At 0.5 MPa it provides 10053 N push and 9425 N pull. At 0.7 MPa push is 14074 N, at 0.9 MPa it is 18095 N, and the theoretical max force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X300 replacement — usually within 7-8 hours.