This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X335S, 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 SI160X335S
The AirTAC SI160 Standard Cylinder SI160X335S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 335mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X335S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke335 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X335S
- 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 SI160X335S
The AirTAC SI160X335S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 335 mm stroke. It delivers 10053 N push force at 0.5 MPa, utilizing a G3/4 port and M36x2 rod thread. AirTAC replaced this legacy unit with the SAI160X335S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family also introduces SAIL, SAIF, and BSAI lock variants absent from the SI line.
Airtac SI160 Standard Cylinder SI160X335S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X335S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X335S |
| Bore size | Ø160 mm |
| Stroke | 335 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 SAI160X335S 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 SAI160X335S 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 SI160X335S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×335 | 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 SI160X335S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping and forming dies requiring up to 14074 N of push force at 0.7 MPa with stable 160 mm bore rigidity.
Automated Assembly Fixture
Clamps massive structural components into position on automated lines, relying on the 50 mm adjustable end cushions to decelerate heavy masses.
Replacing the Airtac SI160 Standard Cylinder SI160X335S with the SAI160X335S
To replace the SI160X335S, order the SAI160X335S. Confirm the ISO 15552 mounting interface, the 335 mm stroke, and the G3/4 port (available in PT, G, or NPT). Retain your original mounting accessory (LB, FA, TC, etc.) and the -S magnet requirement for current AirTAC switches. When sizing both ways, the neighboring 125 mm bore yields 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. A plain cylinder does not hold load on air loss; the 50 mm cushion only decelerates near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI variant. Because the 335 mm stroke is long, prevent rod bending by using an external guide to absorb side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X335S
- ✓ 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 SI160X335S FAQ
Yes, the AirTAC SI160X335S is discontinued. The direct replacement is the SAI160X335S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 335 mm stroke, G3/4 port, and mounting interface, so it drops directly into existing fixtures.
The 160 mm bore features a G3/4 port, a 40 mm rod, and an M36x2 thread. 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 maximum of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X335S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X335S replacement — usually within 7-8 hours.