This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X160S, 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 SI100 Standard Cylinder SI100X160S
The AirTAC Airtac SI100 Standard Cylinder SI100X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X160S
- 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 SI100 Standard Cylinder SI100X160S
The AirTAC SI100X160S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 160mm stroke. It delivers a thrust of 3927 N at 0.5 MPa and features a G1/2 air port. AirTAC replaced this legacy unit with the SAI100X160S, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended longevity and lower start-up pressure. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, and the SAI family expands capabilities with SAIL, SAIF, and BSAI lock variants the original SI lacked.
Airtac SI100 Standard Cylinder SI100X160S Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X160S |
| Bore size | Ø100 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100X160S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X160S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×160 | 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 SI100 Standard Cylinder SI100X160S Is Used
Heavy Press Clamping
Ideal for securing heavy chassis or machinery components during machining, utilizing the 3927 N push force at 0.5 MPa to hold parts firmly against the tool path.
Automated Forming Stops
Acts as a heavy-duty stopper or positioning block in metal forming lines, absorbing kinetic energy via the 36mm adjustable air cushions at both ends.
Replacing the Airtac SI100 Standard Cylinder SI100X160S with the SAI100X160S
To replace the SI100X160S, order the SAI100X160S. Verify your existing fixture's ISO 15552 mounting interface, the 100mm bore, 160mm stroke, G1/2 port (available in PT, G, or NPT threads), and your specific mounting accessory (LB, FA, FB, CA, CB, TC, etc.). The -S suffix indicates a piston magnet, so confirm your sensor compatibility; the SI used legacy CS1-B/DS1-B switches, while the SAI uses current AirTAC sensors. For sizing alternatives, a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, whereas stepping up to 125mm provides 6136 N. Remember that a standard cylinder does not hold load without live air; the cushions only decelerate. For load holding on air loss, consider an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants. Since this 160mm stroke is under 300mm, severe rod-bending side loads are less critical, but always guide the load to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X160S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X160S FAQ
Yes, the AirTAC SI100X160S is discontinued and end-of-life. The direct replacement is the SAI100X160S. It shares the identical ISO 15552 mounting interface, 100mm bore, 160mm stroke, output force, G1/2 port, and mounting accessories, fitting directly into your existing fixtures.
This 100mm bore double-acting cylinder features a G1/2 air port and a 25mm piston rod. The thrust ratings are: push 3927 N and pull 3681 N at 0.5 MPa; push 5497 N at 0.7 MPa; push 7068 N at 0.9 MPa; with a theoretical maximum force of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X160S replacement — usually within 7-8 hours.