This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X900STC, 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 SI160X900STC
The AirTAC SI160 Standard Cylinder SI160X900STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X900STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X900STC
- 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 SI160X900STC
The AirTAC SI160X900STC is a discontinued double-acting ISO 15552 profile cylinder, delivering a robust 10053 N push force at 0.5 MPa through its 160 mm bore and 900 mm stroke. It features a G3/4 port, an M36x2 rod thread, and a 50 mm adjustable air cushion at each end. AirTAC replaced this legacy unit with the SAI160X900STC, a direct upgrade retaining the exact ISO 15552 mounting interface, TC trunnion mount, and output force.
The SAI successor introduces an upgraded piston seal utilizing two Y-shaped one-way elements for extended lifespan and lower start-up pressure. The original SI-S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family also adds SAIL and BSAI lock variants absent from the SI line.
Airtac SI160 Standard Cylinder SI160X900STC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X900STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X900STC |
| Bore size | Ø160 mm |
| Stroke | 900 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 SAI160X900STC 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 SAI160X900STC 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 SI160X900STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×900 | 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 SI160X900STC Is Used
Heavy Press Actuation
Drives large stamping or forming presses requiring up to 14074 N at 0.7 MPa, utilizing the 50 mm adjustable cushions to absorb high kinetic energy at stroke ends.
Large Mold Transfer
Shifts heavy injection molds or automotive components along production lines, relying on the rigid ISO 15552 TC trunnion mount to handle structural pivoting.
Replacing the Airtac SI160 Standard Cylinder SI160X900STC with the SAI160X900STC
To replace the SI160X900STC, specify the SAI160X900STC and verify the ISO 15552 TC trunnion interface, 900 mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. If downsizing, a 125 mm bore yields 6136 N push at 0.5 MPa; if upsizing, a 200 mm bore provides 15708 N. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. Because 900 mm exceeds typical column lengths, add external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X900STC
- ✓ 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 SI160X900STC FAQ
Yes, the SI160X900STC is discontinued. The direct replacement is the SAI160X900STC. It matches the ISO 15552 mounting interface, 160 mm bore, 900 mm stroke, output force, G3/4 port, and TC trunnion mount, fitting existing fixtures perfectly.
Operating at 30-500 mm/s, it delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa. It uses a G3/4 port and a 50 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X900STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X900STC replacement — usually within 7-8 hours.