This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X175S, 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 SID Series Double-Rod Cylinder SID80X175S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X175S
- 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 SID Series Double-Rod Cylinder SID80X175S
The AirTAC SID80X175S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. The bore is 80 mm, the rod is Ø25 mm with an M20x1.5 thread, and the air port is G3/8. This discontinued model maps directly to the SAID80X175S direct replacement, sharing the exact same interface, stroke, and mounting. The SAI upgrade uses an advanced two Y-shaped one-way piston seal for low start-up pressure and long life.
Because both faces use the rod-side area, the back rod can carry a sensor cam or drive two tools while resisting rotation. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder drifts on air loss since the 36 mm adjustable cushions only decelerate near stroke end; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID80X175S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X175S |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAID80X175S 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 SAID80X175S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID80X175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SID Series Double-Rod Cylinder SID80X175S Is Used
Dual-Tool Machining Station
Drives two opposing machining heads simultaneously with equal 3175 N @0.7 MPa force on both faces, ensuring perfectly balanced material removal without stroke imbalance.
Anti-Rotation Transfer Gate
Uses the twin rods exiting both ends to rigidly guide a transfer gate on a packaging line, preventing mechanical twist during high-speed 30-800 mm/s actuation.
Symmetric Lift Fixture
Lifts and lowers a 116 kg vertical payload using the equal both-ways force, using the back rod to mount a legacy CS1-B/DS1-B sensor cam for position feedback.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X175S with the SAID80X175S
To replace the SID80X175S, install the SAID80X175S directly—it preserves the 175 mm stroke, G3/8 port, and ISO 15552 mounting holes (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both directions by the equal force: if 3175 N @0.7 MPa is insufficient, step up to the 100 mm bore, or drop to 63 mm (1962 N @0.7 MPa) if lower. Choose a double-rod design when you need anti-rotation stability or must drive two tools simultaneously. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 175 mm stroke, side-load is minimal, but for any stroke >=300 mm, guide the load externally to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X175S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID80X175S FAQ
Yes, the SID80X175S is discontinued. The direct replacement is the SAID80X175S, which shares the same 80 mm bore, 175 mm stroke, G3/8 port, and ISO 15552 mounting interface. The SAI family also adds upgraded piston seals and SAIL/BSAI lock variants.
Because it is a double-rod cylinder, force is equal both ways: 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it features a Ø25 mm rod with M20x1.5 thread and 36 mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X175S replacement — usually within 7-8 hours.