This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX140S, 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 SI160BX140S
The AirTAC SI160 Standard Cylinder SI160BX140S 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 SAI160BX140S, 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 → SAI160BX140S
- 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 SI160BX140S
The AirTAC SI160BX140S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 140 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI160BX140S, matching the interface, bore, stroke, force, and mounting exactly.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This specific SI unit includes a -B SUS304 stainless rod and -S magnet for CS1-B/DS1-B switches.
Airtac SI160 Standard Cylinder SI160BX140S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX140S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX140S |
| 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 SAI160BX140S 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 SAI160BX140S 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 SI160BX140S
| 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 SI160BX140S Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel plates during machining or welding operations.
Injection Molding Extraction
Extracts bulky molded parts from presses, utilizing the 40 mm SUS304 stainless rod for corrosion resistance.
Replacing the Airtac SI160 Standard Cylinder SI160BX140S with the SAI160BX140S
To replace this SI with the SAI160BX140S, verify the ISO 15552 mounting interface, 160 mm bore, 140 mm stroke, G3/4 port, and your specific mounting accessory. This unit has the -B SUS304 stainless rod and -S magnet for legacy CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). A plain cylinder drifts on air loss as the cushion only decelerates—for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX140S
- ✓ 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 SI160BX140S FAQ
Yes, the SI160BX140S is discontinued. The direct replacement is the SAI160BX140S, which is dimensionally interchangeable per ISO 15552 and matches the bore, stroke, force, G3/4 port, and mounting.
It delivers 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. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX140S replacement — usually within 7-8 hours.