This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X500STC, 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 SI160X500STC
The AirTAC SI160 Standard Cylinder SI160X500STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X500STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X500STC
- 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 SI160X500STC
The AirTAC SI160X500STC is a discontinued double-acting ISO 15552 profile cylinder with a 160mm bore and 500mm stroke. It delivers 10053N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI160X500STC, which retains the exact same interface, M36x2 rod thread and 50mm cushions.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds BSAI clamp-lock and SAIL air-released lock variants absent in the SI line.
Airtac SI160 Standard Cylinder SI160X500STC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X500STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X500STC |
| Bore size | Ø160 mm |
| Stroke | 500 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 SAI160X500STC 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 SAI160X500STC 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 SI160X500STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×500 | 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 SI160X500STC Is Used
Heavy Press Actuation
Drives large stamping or forming presses requiring 10053N push force at 0.5MPa, utilizing the 50mm adjustable cushions to absorb heavy end-of-stroke impacts.
Large Mold Handling
Shifts heavy injection molds along the 500mm stroke, where the G3/4 air port supplies the volume needed to move the 160mm bore within the 30-500mm/s speed range.
Replacing the Airtac SI160 Standard Cylinder SI160X500STC with the SAI160X500STC
To replace this SI160X500STC, order the SAI160X500STC. Verify the ISO 15552 TC trunnion mount, 500mm stroke, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). If sizing down, a 125mm bore yields 6136N push at 0.5MPa; sizing up to 200mm provides 15708N. Note that a 500mm stroke requires external guides to prevent rod bending under side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the BSAI clamp-lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X500STC
- ✓ 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 SI160X500STC FAQ
Yes, the SI160X500STC is discontinued. The direct replacement is the SAI160X500STC. It is dimensionally interchangeable per ISO 15552, matching the 160mm bore, 500mm stroke, G3/4 port, and TC mounting interface.
At 0.5MPa it pushes 10053N and pulls 9425N. At 0.7MPa push is 14074N, and at 0.9MPa it is 18095N. The theoretical max is 2050kgf at 1.0MPa. Operating speed is 30-500mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X500STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X500STC replacement — usually within 7-8 hours.