This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X150TC, 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 SI80 Standard Air Cylinder SI80X150TC
The AirTAC SI80 Standard Air Cylinder SI80X150TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X150TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X150TC
- 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 SI80 Standard Air Cylinder SI80X150TC
The AirTAC SI80X150TC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 150 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X150TC, matching the bore, stroke, force, port, and ISO 15552 TC trunnion mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Note this SKU lacks a magnet, so it cannot take a sensor.
Airtac SI80 Standard Air Cylinder SI80X150TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X150TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X150TC |
| Bore size | Ø80 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X150TC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X150TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X150TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SI80 Standard Air Cylinder SI80X150TC Is Used
Mid-Tonnage Pressing
Applies up to 3518 N of push force at 0.7 MPa for seating bearings, stamping light sheet metal, or clinching components in automated assembly lines.
Pallet Diversion
Uses the 150 mm stroke and TC trunnion mount to actuate heavy-duty routing gates or pop-up stops, handling pallets safely within a 1508 N working load.
Replacing the Airtac SI80 Standard Air Cylinder SI80X150TC with the SAI80X150TC
To replace the SI80X150TC, order the SAI80X150TC. It drops directly into existing fixtures via the ISO 15552 TC trunnion mount, keeping the 80 mm bore, 150 mm stroke, G3/8 port, and M20x1.5 rod thread. When sizing, consider neighbouring bores: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. This non-magnet SKU cannot accept CS1-B/DS1-B sensors.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X150TC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X150TC FAQ
Yes, the SI80X150TC is discontinued. The direct replacement is the SAI80X150TC. It is dimensionally interchangeable per ISO 15552, retaining the identical 80 mm bore, 150 mm stroke, G3/8 port, and TC trunnion mount, so it fits existing fixtures directly.
At 0.5 MPa it provides 2513 N push and 2268 N pull; at 0.7 MPa it pushes 3518 N, and at 0.9 MPa it pushes 4523 N. The theoretical max force is 513 kgf at 1.0 MPa. It operates at 30-800 mm/s, uses a G3/8 port, and has a 36 mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X150TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X150TC replacement — usually within 7-8 hours.