This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X140S, 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 SI160X140S
The AirTAC SI160 Standard Cylinder SI160X140S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X140S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X140S
- 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 SI160X140S
The AirTAC SI160X140S is a discontinued double-acting ISO 15552 profile cylinder. Delivering 10053 N of push force at 0.5 MPa through a 160 mm bore, it is replaced by the SAI160X140S. This direct successor shares the exact interface, 140 mm stroke, G3/4 port, and mounting hardware.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds variants the SI lacked, like the SAIL lock and BSAI clamp-lock. The original -S magnet supports CS1-B/DS1-B sensors.
Airtac SI160 Standard Cylinder SI160X140S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X140S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X140S |
| Bore size | Ø160 mm |
| Stroke | 140 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 SAI160X140S 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 SAI160X140S 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 SI160X140S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×140 | 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 SI160X140S Is Used
Heavy Stamping
Drives large presses and stamping dies requiring 10053 N of push force at 0.5 MPa with stable 160 mm bore rigidity.
Pallet Handling
Shifts heavy loaded pallets on conveyors, utilizing the 140 mm stroke to push goods onto diverter lanes smoothly.
Automated Clamping
Secures large fabricated steel frames during welding, holding parts firmly with 9425 N of pull force at 0.5 MPa.
Replacing the Airtac SI160 Standard Cylinder SI160X140S with the SAI160X140S
To replace the SI160X140S, order the SAI160X140S. It drops into existing fixtures per the ISO 15552 mounting interface, matching the 160 mm bore, 140 mm stroke, G3/4 port, and M36x2 rod thread. Confirm your mounting accessory (like TC trunnion or FA flange) and thread type (PT/G/NPT). If you need to size down, the 125 mm bore yields 6136 N push at 0.5 MPa. If sizing up, the 200 mm bore offers 15708 N. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The 140 mm stroke is under the 300 mm side-load threshold, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X140S
- ✓ 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 SI160X140S FAQ
Yes, the SI160X140S is discontinued. The direct replacement is the SAI160X140S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160 mm bore, 140 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder features a G3/4 air port. 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. The speed range is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X140S replacement — usually within 7-8 hours.