This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X75S, 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 SID80X75S
The AirTAC Airtac SID Series Double-Rod Cylinder SID80X75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAID80X75S
- 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 SID80X75S
The AirTAC SID80X75S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, meaning push and pull force are equal at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. This SID model is discontinued and end-of-life; the direct replacement is the SAID80X75S. It shares the same G3/8 port, M20x1.5 rod thread, and 36mm cushion. The SAI family uses an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life.
The dual-rod design prevents rotation and lets the back rod carry a sensor cam or drive a second tool. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the cushion only decelerates. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SID Series Double-Rod Cylinder SID80X75S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID80X75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X75S |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAID80X75S 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 SAID80X75S 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 SID80X75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SID80X75S Is Used
Dual-Tool Transfer
Drives two independent end-effectors simultaneously from a single piston, utilizing the equal push and pull force to transfer parts between workstations without rotational drift.
Symmetric Edge Guiding
Uses the opposing rods to align and pinch material from both ends, relying on the anti-rotation properties of the double-rod layout to maintain parallelism.
Cam-Driven Sensing
The rear extension rod carries a sensor cam, triggering legacy CS1-B/DS1-B switches to confirm mid-stroke positions while the front rod performs the primary work.
Replacing the Airtac SID Series Double-Rod Cylinder SID80X75S with the SAID80X75S
To replace the discontinued SID80X75S, install the direct replacement SAID80X75S, reusing the exact ISO 15552 mounting interface (Basic, FA, LB, or TC) without bracket changes. Size both ways by checking equal force: if 3175 N @0.7 MPa is insufficient, step up to the 100mm bore (5153 N), or drop to the 63mm bore (1962 N) if lower force is needed. A double rod is right when you need anti-rotation stability or dual-end actuation. The -S magnet enables position sensing. For this 75mm stroke, side-load is minimal, but for strokes >=300mm, ensure guide alignment to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID80X75S
- ✓ 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 SID80X75S FAQ
Yes, the SID80X75S is discontinued. The direct replacement is the SAID80X75S, which matches the ISO 15552 mounting interface, 80mm bore, 75mm stroke, G3/8 port, and equal both-ways force.
Force is equal both ways at 2268 N @0.5 MPa, 3175 N @0.7 MPa, and 4082 N @0.9 MPa. Speed is 30-800 mm/s. The bore dictates the G3/8 port and M20x1.5 rod thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAID80X75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X75S replacement — usually within 7-8 hours.