This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X275, 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 SI160X275
The AirTAC SI160 Standard Cylinder SI160X275 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 275mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X275, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X275
- 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 SI160X275
The AirTAC SI160X275 is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a 275 mm stroke. Delivering 10053 N push force at 0.5 MPa, it is succeeded by the SAI160X275 direct replacement. This upgrade maintains the exact G3/4 port, M36x2 rod thread, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note this non-magnet SKU cannot accept a sensor. The SAI family also adds SAIL and BSAI lock variants absent from the legacy line.
Airtac SI160 Standard Cylinder SI160X275 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X275 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X275 |
| Bore size | Ø160 mm |
| Stroke | 275 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 SAI160X275 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 SAI160X275 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 SI160X275
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×275 | 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 SI160X275 Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large metal castings during machining operations.
Industrial Door Actuation
Drives heavy automated blast doors or machinery guards requiring substantial push and pull force.
Replacing the Airtac SI160 Standard Cylinder SI160X275 with the SAI160X275
To replace the SI160X275, order the SAI160X275 keeping the identical 160 mm bore, 275 mm stroke, and mounting accessory. Confirm the G3/4 port and ISO 15552 interface match your manifold. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; choose an -S version if position detection is required. For sizing alternatives, dropping to a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore provides 15708 N. A plain cylinder drifts on air loss, so for load holding specify an external pilot check valve or the SAIL/BSAI lock variant. Since the 275 mm stroke is under 300 mm, side-load rod bending is minimal, but standard guide considerations apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X275
- ✓ 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 SI160X275 FAQ
Yes, the AirTAC SI160X275 is discontinued. The direct replacement is the SAI160X275. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160 mm bore, 275 mm stroke, output force, G3/4 port, and mounting accessories.
The 160 mm bore features a G3/4 port and delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X275
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X275 replacement — usually within 7-8 hours.