This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X340S, 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 SI160X340S
The AirTAC SI160 Standard Cylinder SI160X340S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 340mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X340S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke340 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X340S
- 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 SI160X340S
The AirTAC SI160X340S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 340 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X340S, retaining identical ISO 15552 mounting dimensions, stroke, output force, and accessories.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also adds SAIL lock and BSAI clamp-lock variants the SI lacked. This -S SKU includes a magnet for CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160X340S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X340S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X340S |
| Bore size | Ø160 mm |
| Stroke | 340 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 SAI160X340S 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 SAI160X340S 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 SI160X340S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×340 | 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 SI160X340S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 10053 N push force at 0.5 MPa with robust 50 mm cushions.
Automated Assembly Fixture
Clamps large fabricated frames in welding cells, utilizing the 340 mm stroke to clear bulky parts.
Replacing the Airtac SI160 Standard Cylinder SI160X340S with the SAI160X340S
To replace the SI160X340S, order the SAI160X340S. Confirm the ISO 15552 mounting interface, 160 mm bore, 340 mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. Sizing both ways: the 125 mm bore yields 6136 N [email protected], while the 200 mm bore yields 15708 N. Note that a plain cylinder drifts on air loss as cushions only decelerate; for load holding use the SAIL or BSAI lock variant, or an external pilot check valve. At 340 mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X340S
- ✓ 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 SI160X340S FAQ
Yes, the SI160X340S is discontinued. The direct replacement is the SAI160X340S. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 340 mm stroke, G3/4 port, and mounting interface.
It uses a G3/4 port. Force output is 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X340S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X340S replacement — usually within 7-8 hours.