This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1420S, 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 SI160X1420S
The AirTAC SI160 Standard Cylinder SI160X1420S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1420mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1420S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke1420 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X1420S
- 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 SI160X1420S
The AirTAC SI160X1420S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1420 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160X1420S, matching the interface, bore, stroke, force and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked. This -S model has a piston magnet for CS1-B/DS1-B switches; the SAI uses current AirTAC switches.
Airtac SI160 Standard Cylinder SI160X1420S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X1420S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1420S |
| Bore size | Ø160 mm |
| Stroke | 1420 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 SAI160X1420S 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 SAI160X1420S 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 SI160X1420S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×1420 | 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 SI160X1420S Is Used
Heavy Press Forming
Applies the 14074 N push force at 0.7 MPa to form thick metal components, utilizing the long 1420 mm stroke for deep-draw operations.
Large Fixture Clamping
Secures oversized aerospace or automotive molds during machining, relying on the 50 mm adjustable air cushions to decelerate the heavy 160 mm piston.
Replacing the Airtac SI160 Standard Cylinder SI160X1420S with the SAI160X1420S
To replace the SI160X1420S, order the SAI160X1420S. Confirm the ISO 15552 mounting interface, 160 mm bore, 1420 mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. The -S suffix means a magnet is present for CS1-B/DS1-B sensors; a no-S SKU cannot take a sensor. Sizing both ways: a 200 mm bore gives more force, while a 125 mm bore offers 6136 N [email protected] MPa. At 1420 mm, prevent rod bending by using an external guide to handle side loads. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X1420S
- ✓ 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 SI160X1420S FAQ
Yes, the SI160X1420S is discontinued. The direct replacement is the SAI160X1420S. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 1420 mm stroke, G3/4 port, and mounting interface.
This double-acting cylinder has a 40 mm rod, M36x2 thread, and G3/4 port. Force outputs are 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s, with a 50 mm adjustable cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X1420S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1420S replacement — usually within 7-8 hours.