This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X350, 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 SI160X350
The AirTAC SI160 Standard Cylinder SI160X350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X350
- 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 SI160X350
The AirTAC SI160X350 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 350 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm rod, M36x2 thread, and a G3/4 air port. This SKU lacks a magnet and cannot accept a position sensor.
The direct replacement is the SAI160X350. It shares the same ISO 15552 mounting interface, output force, and porting. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure, and introduces SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI160 Standard Cylinder SI160X350 Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X350 |
| Bore size | Ø160 mm |
| Stroke | 350 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 SAI160X350 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 SAI160X350 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 SI160X350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×350 | 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 SI160X350 Is Used
Heavy Machinery Forming
Drives large press beds or forming dies requiring up to 18095 N thrust at 0.7 MPa within heavy industrial fixtures.
Large Component Clamping
Secures oversized metal castings for machining operations, utilizing the 50 mm adjustable cushions to halt heavy masses smoothly.
Replacing the Airtac SI160 Standard Cylinder SI160X350 with the SAI160X350
To replace the SI160X350, order the SAI160X350. Verify the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/4 port thread (PT/G/NPT), and the 350 mm stroke. Because this specific SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; order a magnet-equipped SAI if sensing is needed. Sizing both ways: the 160 mm bore yields 10053 N push at 0.5 MPa (max 2050 kgf at 1.0 MPa); if less force is required, a 125 mm bore provides 6136 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 350 mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X350
- ✓ 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 SI160X350 FAQ
Yes, the AirTAC SI160X350 is discontinued. The direct replacement is the SAI160X350. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 160 mm bore, 350 mm stroke, force, G3/4 port, and mounting accessories.
The bore is 160 mm with a G3/4 port and 40 mm rod. At 0.5 MPa it pushes 10053 N and pulls 9425 N. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical max force is 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X350
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X350 replacement — usually within 7-8 hours.