This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X340, 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 SI160X340
The AirTAC SI160 Standard Cylinder SI160X340 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 SAI160X340, 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 → SAI160X340
- 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 SI160X340
The AirTAC SI160X340 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 340 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI160X340. This direct successor matches the exact interface, bore, stroke, force, port and mounting, dropping directly into existing fixtures.
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 absent from the SI line. Note this SKU lacks a magnet and cannot take a sensor.
Airtac SI160 Standard Cylinder SI160X340 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X340 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X340 |
| 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 SAI160X340 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 SAI160X340 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 SI160X340
| 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 SI160X340 Is Used
Heavy Press Forming
Applies the 14074 N push force at 0.7 MPa to seat heavy bearings or form thick metal components in automated stamping lines.
Pallet Lift Stations
Lifts loaded pallets up to the 512 kg vertical limit, utilizing the 340 mm stroke to raise goods to ergonomic transfer heights.
Large Mold Handling
Shifts substantial injection molds along the 340 mm travel, relying on the robust 40 mm piston rod to maintain rigidity.
Replacing the Airtac SI160 Standard Cylinder SI160X340 with the SAI160X340
To replace the SI160X340, order the SAI160X340. Confirm the ISO 15552 mounting interface, 160 mm bore, 340 mm stroke, M36x2 rod thread, 50 mm cushions and G3/4 port (PT/G/NPT). Match your mounting accessory (LB, FA, CA, TC) and note this non-magnetic SKU cannot accept CS1-B/DS1-B sensors. Sizing both ways: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. A plain cylinder drifts on air loss as cushions only decelerate; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 340 mm, prevent rod bending by using an external guide to handle side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X340
- ✓ 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 SI160X340 FAQ
Yes, the SI160X340 is discontinued. The direct replacement is the SAI160X340, a true ISO 15552 profile cylinder. It shares the identical mounting interface, 160 mm bore, 340 mm stroke, output force, G3/4 port and accessories, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 air port and a 40 mm rod. 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 max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X340
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X340 replacement — usually within 7-8 hours.