This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X65S, 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 SI160X65S
The AirTAC Airtac SI160 Standard Cylinder SI160X65S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 65mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X65S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X65S
- 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 SI160X65S
The AirTAC SI160X65S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 65 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and a built-in piston magnet for CS1-B/DS1-B sensors. The direct replacement is the current-production SAI160X65S, which shares the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that a plain cylinder drifts on air loss; for load holding, consider the SAIL or BSAI lock variants, or an external pilot check valve.
Airtac SI160 Standard Cylinder SI160X65S Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X65S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X65S |
| Bore size | Ø160 mm |
| Stroke | 65 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 SAI160X65S 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 SAI160X65S 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 SI160X65S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×65 | 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 SI160X65S Is Used
Heavy Press Clamping
Ideal for securing large metal castings or heavy machinery components during machining, utilizing its 10053 N push force at 0.5 MPa to hold workpieces firmly in place.
Stamping Press Feed
Provides the robust actuation needed to drive heavy stamping dies or feed thick plate materials, taking advantage of the 160 mm bore's high thrust and 65 mm short stroke.
Pallet Stopper Gate
Acts as a high-force stopper or heavy-duty diverter gate in automated logistics lines, easily absorbing the impact of loaded pallets with its adjustable 50 mm air cushions.
Replacing the Airtac SI160 Standard Cylinder SI160X65S with the SAI160X65S
To replace the SI160X65S, order the SAI160X65S. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the G3/4 port threads (PT, G, or NPT), and the M36x2 rod end. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAI replacement uses current AirTAC sensors. If you need to size both ways, the neighboring 200 mm bore offers higher force, while the 125 mm bore is smaller. At 0.5 MPa, this 160 mm bore provides 10053 N push and 9425 N pull force. Because the 65 mm stroke is under 300 mm, side-load rod-bending risks are minimal, but always ensure proper guide alignment. Remember that standard cylinders do not hold loads without live air; for secure holding, use the SAIL air-released lock, the BSAI clamp-lock, or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X65S
- ✓ 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 SI160X65S FAQ
Yes, the SI160X65S is discontinued. The direct replacement is the AirTAC SAI160X65S. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 65 mm stroke, 10053 N force, G3/4 port, and mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder features a G3/4 air port and an M36x2 rod thread. 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 force of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X65S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X65S replacement — usually within 7-8 hours.