This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX75, 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 SI160BX75
The AirTAC Airtac SI160 Standard Cylinder SI160BX75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX75
- 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 SI160BX75
The AirTAC SI160BX75 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 75 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160BX75, matching the interface, bore, stroke, force, and mounting.
This SKU features a SUS304 stainless piston rod (-B) and no magnet, meaning it cannot take a sensor. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
Airtac SI160 Standard Cylinder SI160BX75 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX75 |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAI160BX75 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 SAI160BX75 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 SI160BX75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 SI160BX75 Is Used
Heavy Stamp Pressing
Generates 14074 N of push force at 0.7 MPa to firmly seat large metal panels and heavy components in automated stamping fixtures.
Pallet Positioning
Shifts loaded pallets laterally on conveyors using a robust 40 mm SUS304 stainless rod that withstands harsh industrial environments.
Mold Actuation
Drives heavy molding tools over its 75 mm travel, relying on the 50 mm adjustable air cushions to decelerate the massive 160 mm piston smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160BX75 with the SAI160BX75
To replace the SI160BX75, order the SAI160BX75. Verify the ISO 15552 mounting interface, 75 mm stroke, G3/4 port, and your specific mounting accessory. Because this SKU lacks a magnet (-S), it cannot accept legacy CS1-B/DS1-B sensors; order a magnet-equipped SAI if position detection is required.
Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa (2050 kgf max at 1.0 MPa). If moving down, a 125 mm bore gives 6136 N push. Note that a plain cylinder drifts on air loss—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 → SAI160BX75
- ✓ 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 SI160BX75 FAQ
Yes, the SI160BX75 is discontinued. The direct replacement is the SAI160BX75. It is dimensionally interchangeable per the ISO 15552 mounting interface, offering the exact same 160 mm bore, 75 mm stroke, force, G3/4 port, and mounting compatibility.
This double-acting cylinder uses a G3/4 air port. The thrust ratings are: 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 maximum of 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX75
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX75 replacement — usually within 7-8 hours.