This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X250TC, 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 SI160X250TC
The AirTAC SI160 Standard Cylinder SI160X250TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 250mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X250TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X250TC
- 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 SI160X250TC
The AirTAC SI160X250TC is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 250 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI160X250TC, which shares the exact TC trunnion mount, M36x2 rod thread, and 50 mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU lacks a magnet (-S), so it cannot take CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI160 Standard Cylinder SI160X250TC Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X250TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X250TC |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAI160X250TC 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 SAI160X250TC 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 SI160X250TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SI160X250TC Is Used
Heavy Press Clamping
Generates 14074 N at 0.7 MPa to secure large steel fabrications during machining or welding operations.
Injection Mold Ejection
Uses the 50 mm adjustable air cushions to smoothly decelerate the 40 mm rod when ejecting bulky molded components.
Replacing the Airtac SI160 Standard Cylinder SI160X250TC with the SAI160X250TC
To replace the SI160X250TC, order the SAI160X250TC. It is dimensionally interchangeable per ISO 15552, matching the TC trunnion mount, 160 mm bore, 250 mm stroke, and G3/4 port. Because this specific SKU has no magnet, it cannot support position sensing; order an SAI variant with S if switches are needed. For sizing alternatives, a 200 mm bore offers more thrust, while a 125 mm bore provides 6136 N push at 0.5 MPa. 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 variants. At 250 mm stroke, guide side-loads to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X250TC
- ✓ 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 SI160X250TC FAQ
Yes, the SI160X250TC is discontinued. The direct replacement is the SAI160X250TC. It shares the same ISO 15552 mounting interface, TC trunnion, 160 mm bore, 250 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 port and delivers 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N at 0.9 MPa, and a maximum theoretical force of 2050 kgf at 1.0 MPa. The operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X250TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X250TC replacement — usually within 7-8 hours.