This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160BX650, 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 SI160BX650
The AirTAC SI160 Standard Cylinder SI160BX650 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 650mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160BX650, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160BX650
- 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 SI160BX650
The AirTAC SI160BX650 is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 650mm stroke. Delivering 10053N push force at 0.5MPa, it features a SUS304 stainless steel rod (B option) and a G3/4 port. AirTAC replaced this EOL unit with the SAI160BX650 direct.
The SAI160BX650 matches the exact bore, stroke, output force, and ISO 15552 mounting interface. It upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure. This SKU lacks a magnet and cannot take a sensor.
Airtac SI160 Standard Cylinder SI160BX650 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160BX650 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160BX650 |
| Bore size | Ø160 mm |
| Stroke | 650 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 SAI160BX650 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 SAI160BX650 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 SI160BX650
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×650 | 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 SI160BX650 Is Used
Heavy Stamping
Drives large presses and stamping fixtures requiring 10053N push force at 0.5MPa with a 650mm stroke.
Large Mold Handling
Shifts heavy industrial molds along a 650mm travel path, relying on the SUS304 rod for corrosion resistance.
Pallet Positioning
Indexes loaded pallets in automated distribution hubs, utilizing the 160mm bore for high thrust capacity.
Replacing the Airtac SI160 Standard Cylinder SI160BX650 with the SAI160BX650
To replace the SI160BX650, order the SAI160BX650. Verify the ISO 15552 mounting interface, 650mm stroke, and G3/4 port. This SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B switches; add the S suffix if sensing is needed. For sizing, the 125mm bore yields 6136N [email protected], while the 200mm bore yields 15708N. 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. At 650mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160BX650
- ✓ 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 SI160BX650 FAQ
Yes, the AirTAC SI160BX650 is discontinued. The direct replacement is the SAI160BX650. It shares the same ISO 15552 mounting interface, 160mm bore, 650mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The 160mm bore features a G3/4 port and M36x2 rod thread. It delivers 10053N push and 9425N pull at 0.5MPa, 14074N push at 0.7MPa, 18095N push at 0.9MPa, and a theoretical max of 2050 kgf at 1.0MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160BX650
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160BX650 replacement — usually within 7-8 hours.