This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X336S, 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 SI160X336S
The AirTAC SI160 Standard Cylinder SI160X336S 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 SAI160X336S, 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 → SAI160X336S
- 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 SI160X336S
The AirTAC SI160X336S is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a 336 mm stroke. In this force class it delivers 10053 N of push force at 0.5 MPa through its G3/4 port. The direct replacement is the SAI160X336S, matching the original bore, stroke, output force, porting, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. If your application requires heat resistance, Viton H seals raise the operating range to 150 C. To hold a load securely without live air, consider the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI160 Standard Cylinder SI160X336S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X336S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X336S |
| 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 SAI160X336S 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 SAI160X336S 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 SI160X336S
| 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 SI160X336S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring high thrust, utilizing the 14074 N push force at 0.7 MPa to form thick metal plates.
Large Assembly Fixture
Clamps heavy machinery frames during welding or machining, relying on the robust 160 mm bore and 336 mm stroke to clear large workpieces.
Replacing the Airtac SI160 Standard Cylinder SI160X336S with the SAI160X336S
To replace the discontinued SI160X336S, order the SAI160X336S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/4 port thread (PT, G, or NPT), and the M36x2 rod-end thread. Because this unit includes the -S magnet, it supports legacy CS1-B/DS1-B sensors, while the SAI replacement uses current AirTAC switches. When sizing, note the 10053 N push force at 0.5 MPa; dropping to a 125 mm bore reduces force to 6136 N, whereas a 200 mm bore increases it to 15708 N. For this 336 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, specify an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X336S
- ✓ 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 SI160X336S FAQ
Yes, the SI160X336S is discontinued. The direct replacement is the SAI160X336S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 336 mm stroke, force, G3/4 port, and mounting interface.
The SI160X336S provides 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 of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X336S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X336S replacement — usually within 7-8 hours.