This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX500, 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 SI160AX500
The AirTAC Airtac SI160 Standard Cylinder SI160AX500 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 SAI160AX500, 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 → SAI160AX500
- 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 SI160AX500
The AirTAC SI160AX500 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 500 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a Ø40 mm rod, M36x2 thread, 50 mm cushions, a G3/4 port, and an SUS420J2 stainless rod. This SKU lacks a magnet and cannot accept a sensor.
Order the direct replacement SAI160AX500: it matches the ISO 15552 mounting interface, bore, stroke, force and port. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure. For load holding, note the cushion only decelerates; use an external rod lock or SAIL/BSAI variant.
Airtac SI160 Standard Cylinder SI160AX500 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160AX500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX500 |
| 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 SAI160AX500 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 SAI160AX500 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 SI160AX500
| 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 SI160AX500 Is Used
Heavy Stamp Press Feed
Drives robust 500 mm displacement to load thick steel blanks into large stamping presses, utilizing the 10053 N push force at 0.5 MPa.
Pallet Dispenser Unit
Cycles empty or full heavy-duty pallets over 500 mm strokes in automated packaging lines, relying on the 9425 N pull force.
Replacing the Airtac SI160 Standard Cylinder SI160AX500 with the SAI160AX500
To replace this SI160AX500, order the SAI160AX500. Verify the ISO 15552 mounting interface, 500 mm stroke, G3/4 port, and your mounting accessory. This SKU has no -S magnet, so it cannot take CS1-B/DS1-B sensors; order a magnet-equipped SAI if sensing is needed. Sizing both ways: a 125 mm bore yields 6136 N [email protected], while a 200 mm bore yields 15708 N. At 0.7 MPa this 160 mm bore pushes 14074 N. For the 500 mm stroke, use external guides to prevent rod-bending side loads. A plain cylinder drifts on air loss; for held loads use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160AX500
- ✓ 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 SI160AX500 FAQ
Yes, the SI160AX500 is discontinued. The direct replacement is the SAI160AX500. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the exact same 160 mm bore, 500 mm stroke, 10053 N force, G3/4 port, and mounting fixtures.
The 160 mm bore features a G3/4 air port. Force 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 max of 2050 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160AX500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX500 replacement — usually within 7-8 hours.