This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X550TC, 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 SI160X550TC
The AirTAC SI160 Standard Cylinder SI160X550TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 550mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X550TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X550TC
- 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 SI160X550TC
The AirTAC SI160X550TC is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 550mm stroke. It delivers 10053N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI160X550TC, retaining the exact TC trunnion mounting, M36x2 thread, and dimensions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150C.
Airtac SI160 Standard Cylinder SI160X550TC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X550TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X550TC |
| Bore size | Ø160 mm |
| Stroke | 550 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 SAI160X550TC 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 SAI160X550TC 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 SI160X550TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×550 | 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 SI160X550TC Is Used
Heavy Stamp Pressing
Drives large stamping dies with 10053N push force at 0.5MPa, utilizing the 550mm stroke for deep-draw operations.
Large Mold Handling
Shifts substantial injection molds along the 550mm travel path, requiring external guides to prevent rod bending.
Replacing the Airtac SI160 Standard Cylinder SI160X550TC with the SAI160X550TC
To replace the SI160X550TC, order the SAI160X550TC and confirm the ISO 15552 TC trunnion mount, 550mm stroke, G3/4 port, and M36x2 rod thread. This SKU has no magnet (-S), meaning it cannot support CS1-B/DS1-B switches. For sizing, the 160mm bore yields 10053N push at 0.5MPa; dropping to a 125mm bore gives 6136N, while increasing pressure to 0.7MPa yields 14074N. The 550mm stroke requires an external guide to prevent rod bending under side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. Speed is 30-500mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X550TC
- ✓ 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 SI160X550TC FAQ
Yes, the SI160X550TC is discontinued. The direct replacement is the SAI160X550TC. It is dimensionally interchangeable per ISO 15552, matching the 160mm bore, 550mm stroke, G3/4 port, TC mount, and output force.
The G3/4 port feeds a 40mm rod. At 0.5MPa it pushes 10053N and pulls 9425N. At 0.7MPa push is 14074N, and at 0.9MPa it is 18095N. The theoretical max force is 2050kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X550TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X550TC replacement — usually within 7-8 hours.