This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X336, 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 SI160X336
The AirTAC SI160 Standard Cylinder SI160X336 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 336mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X336, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke336 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X336
- 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 SI160X336
The AirTAC SI160X336 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 336 mm stroke. Delivering 10053 N push force at 0.5 MPa through a G3/4 port, it is replaced by the SAI160X336. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI lock variants the SI lacked. Note this specific SKU lacks a magnet, so it cannot accept CS1-B or DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X336 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X336 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X336 |
| Bore size | Ø160 mm |
| Stroke | 336 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 SAI160X336 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 SAI160X336 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 SI160X336
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×336 | 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 SI160X336 Is Used
Heavy Press Forming
Drives large stamping and forming presses requiring 10053 N of push force at 0.5 MPa with stable 336 mm travel.
Industrial Clamp Rigging
Secures large fabricated steel components during welding, utilizing the 160 mm bore's 9425 N pull force.
Replacing the Airtac SI160 Standard Cylinder SI160X336 with the SAI160X336
To replace the SI160X336, order the SAI160X336. Confirm the ISO 15552 mounting interface, the 336 mm stroke, the G3/4 port, and your mounting accessory (LB, FA, TC, etc.). Because this SKU has no -S magnet, it cannot support position sensing; if you need switches, select a magnet-equipped SAI. At 0.5 MPa this bore pushes 10053 N; if you need less force, step down to a 125 mm bore (6136 N), or move up to 200 mm (15708 N). The 336 mm stroke requires external guides to prevent rod bending under side loads. For load holding on air loss, add an external rod lock or pilot check valve, as the cushion only decelerates.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X336
- ✓ 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 SI160X336 FAQ
Yes, the SI160X336 is discontinued. The direct replacement is the AirTAC SAI160X336. It shares the identical ISO 15552 mounting interface, 160 mm bore, 336 mm stroke, output force, and G3/4 port, fitting directly into existing fixtures.
The 160 mm bore features a G3/4 port and delivers 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa it pushes 14074 N, and 18095 N at 0.9 MPa. 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 SAI160X336
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X336 replacement — usually within 7-8 hours.