This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X320TC, 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 SI160X320TC
The AirTAC SI160 Standard Cylinder SI160X320TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 320mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X320TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke320 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X320TC
- 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 SI160X320TC
The AirTAC SI160X320TC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 320 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X320TC, a direct sharing the exact ISO 15552 TC trunnion mounting interface, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI160 Standard Cylinder SI160X320TC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X320TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X320TC |
| Bore size | Ø160 mm |
| Stroke | 320 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 SAI160X320TC 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 SAI160X320TC 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 SI160X320TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×320 | 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 SI160X320TC Is Used
Heavy Stamp Presses
Drives large stamping dies requiring 10053 N of push force at 0.5 MPa, utilizing the 320 mm stroke to clear bulky tooling.
Automated Welding Fixtures
Positions heavy chassis components on an ISO 15552 TC trunnion mount, absorbing side loads when clamping large assemblies.
Replacing the Airtac SI160 Standard Cylinder SI160X320TC with the SAI160X320TC
To replace the SI160X320TC, order the SAI160X320TC. Confirm the ISO 15552 TC trunnion interface, 160 mm bore, 320 mm stroke, G3/4 port, and M36x2 thread. Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, specify a magnet on the SAI. At 0.5 MPa it pushes 10053 N; if you need less force, step down to a 125 mm bore (6136 N), or up to 200 mm (15708 N). With a 320 mm stroke, prevent rod bending by guiding the load externally. A plain cylinder drifts on air loss; for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X320TC
- ✓ 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 SI160X320TC FAQ
Yes, the SI160X320TC is discontinued. The direct replacement is the SAI160X320TC. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 320 mm stroke, G3/4 port, TC trunnion mount, and 10053 N output force. You simply order the SAI model for existing fixtures.
The 160 mm bore uses a G3/4 port. It delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. The piston rod is 40 mm with an M36x2 thread, and speed ranges from 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X320TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X320TC replacement — usually within 7-8 hours.