This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X350H, 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 SI160X350H
The AirTAC SI160 Standard Cylinder SI160X350H 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 SAI160X350H, 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 → SAI160X350H
- 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 SI160X350H
The AirTAC SI160X350H 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 G3/4 port, M36x2 rod thread, and a Viton H high-temperature seal (0 to 150 C). Because this SKU lacks a magnet, it cannot accept a position sensor. The direct replacement is the SAI160X350H, sharing the exact ISO 15552 mounting interface, bore, stroke, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. Note that a standard cylinder drifts without live air; the cushion only decelerates. For load holding, consider an external pilot check valve or the SAIL/BSAI lock variants.
Airtac SI160 Standard Cylinder SI160X350H Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X350H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X350H |
| 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 SAI160X350H 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 SAI160X350H 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 SI160X350H
| 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 SI160X350H Is Used
Heavy Stamp Pressing
Drives large stamping dies requiring 10053 N at 0.5 MPa, utilizing the 350 mm stroke to clear bulky tooling during material load and unload cycles.
Automated Welding Fixtures
Actuates heavy-duty clamps in high-temperature environments using the Viton H seal (0-150 C), maintaining reliable clamping without position sensing.
Replacing the Airtac SI160 Standard Cylinder SI160X350H with the SAI160X350H
To replace the discontinued SI160X350H, order the SAI160X350H. Confirm the ISO 15552 mounting interface, the 160 mm bore, the 350 mm stroke, the G3/4 port, and your specific mounting accessory. Because this original SKU has no magnet, it cannot support legacy CS1-B/DS1-B sensors; order a magnet-equipped SAI if position sensing is required. When sizing, the 14074 N push force at 0.7 MPa allows stepping down to a 125 mm bore if 8590 N suffices, or up to a 200 mm bore for 15708 N. The 350 mm stroke mandates external guides to prevent rod-bending under side loads. A plain cylinder does not hold load on air loss; use a pilot-operated check valve or the BSAI clamp-lock variant for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X350H
- ✓ 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 SI160X350H FAQ
Yes, the SI160X350H is discontinued. The direct replacement is the SAI160X350H. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 350 mm stroke, 10053 N force, G3/4 port, and mounting interface.
At 0.5 MPa it provides 10053 N push and 9425 N pull force. 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 SAI160X350H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X350H replacement — usually within 7-8 hours.