This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X650, 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 SI160X650
The AirTAC SI160 Standard Cylinder SI160X650 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 SAI160X650, 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 → SAI160X650
- 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 SI160X650
The AirTAC SI160X650 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 650 mm stroke, delivering 10053 N push force at 0.5 MPa. It features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. As an end-of-line product, it is replaced by the SAI160X650.
The SAI160X650 is a direct replacement retaining the exact ISO 15552 mounting interface, output force, and porting. It upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This non-magnet SKU cannot accept a sensor.
Airtac SI160 Standard Cylinder SI160X650 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X650 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X650 |
| 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 SAI160X650 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 SAI160X650 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 SI160X650
| 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 SI160X650 Is Used
Heavy Press Demolding
Generates 14074 N at 0.7 MPa to break large injection-molded parts loose from deep tooling cavities during automated extraction cycles.
Large Assembly Actuation
Drives heavy-duty clamping arms and positioning fixtures in automotive assembly lines where high push force and robust 40 mm rods are essential.
Replacing the Airtac SI160 Standard Cylinder SI160X650 with the SAI160X650
To replace the SI160X650, order the SAI160X650 ensuring the ISO 15552 mounting accessories, 650 mm stroke, and G3/4 port match your fixture. The SAI family adds SAIL air-released lock and BSAI clamp-lock variants absent from the SI line; use these or external pilot check valves if you need load holding, as standard cushions only decelerate. If downsizing, a 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. Rod material options include carbon steel, SUS420J2 (A), and SUS304 (B). With a 650 mm stroke, use external guides to prevent rod bending and side-load wear. This SKU lacks a magnet, so it cannot support CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X650
- ✓ 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 SI160X650 FAQ
Yes, the SI160X650 is discontinued. The direct replacement is the SAI160X650, which shares the same ISO 15552 mounting interface, 160 mm bore, 650 mm stroke, force, and G3/4 port. It fits existing fixtures directly and features an upgraded piston seal.
This double-acting cylinder 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. Operating speed is 30-500 mm/s. It uses a G3/4 port and has a 50 mm adjustable air cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X650
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X650 replacement — usually within 7-8 hours.