This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X300FTC, 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 SI160X300FTC
The AirTAC SI160 Standard Cylinder SI160X300FTC 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 SAI160X300FTC, 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 → SAI160X300FTC
- 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 SI160X300FTC
The AirTAC SI160X300FTC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 300 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X300FTC, matching the bore, stroke, force, and FTC trunnion mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure, and introduces SAIL, SAIF, and BSAI lock variants the SI lacked. This no-magnet SKU cannot take a sensor, unlike the CS1-B/DS1-B used on -S models.
Airtac SI160 Standard Cylinder SI160X300FTC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X300FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X300FTC |
| 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 SAI160X300FTC 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 SAI160X300FTC 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 SI160X300FTC
| 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 SI160X300FTC Is Used
Heavy Machinery Forming
Drives large presses and forming fixtures requiring up to 18095 N thrust at 0.7 MPa, utilizing the 300 mm stroke to actuate heavy tooling.
Automated Clamp Systems
Secures large fabricated components during machining, relying on the rigid FTC trunnion mount to handle substantial reaction forces.
Replacing the Airtac SI160 Standard Cylinder SI160X300FTC with the SAI160X300FTC
To replace the SI160X300FTC, order the SAI160X300FTC. Verify the ISO 15552 FTC trunnion interface, 160 mm bore, 300 mm stroke, and G3/4 port. Because this SKU lacks the -S magnet, it cannot accept position sensors; if sensing is needed, specify an SAI160X300FTCS. For sizing, neighboring bores (125 mm or 200 mm) offer different footprints, but this 160 mm bore yields a theoretical max of 2050 kgf at 1.0 MPa. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or choose the SAIL/BSAI lock variant. At 300 mm stroke, use external guides to prevent rod bending from side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X300FTC
- ✓ 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 SI160X300FTC FAQ
Yes, the SI160X300FTC is discontinued. The direct replacement is the SAI160X300FTC. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 300 mm stroke, G3/4 port, and FTC trunnion mounting.
This double-acting cylinder 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 max force of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X300FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X300FTC replacement — usually within 7-8 hours.