Airtac SAID80 Double Rod Cylinder SAID80X400S
The AirTAC Airtac SAID80 Double Rod Cylinder SAID80X400S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
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About the Airtac SAID80 Double Rod Cylinder SAID80X400S
The AirTAC SAID80X400-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 400mm stroke and an 80mm bore. Because the piston rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 2268N of thrust and retraction force at 0.5MPa. This symmetric output is ideal for mechanisms requiring consistent dynamic performance in both travel directions.
Equipped with a magnetic piston (-S), it supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed within the dual-side extruded barrel grooves. The standard carbon steel rod provides durable service, while the PT tapered port threads ensure a tight pneumatic seal. Note that the through-rod design extends past the rear cover, requiring additional clearance in your machine layout.
Airtac SAID80 Double Rod Cylinder SAID80X400S Technical Specifications
| Model | Airtac SAID80 Double Rod Cylinder SAID80X400S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID80 Double Rod Cylinder SAID80X400S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID80 Double Rod Cylinder SAID80X400S Is Used
Symmetric Force Transfer
Drives shuttle mechanisms where equal 2268N push and pull forces are required to move payloads smoothly in both directions without speed discrepancies.
Anti-Rotation Slides
The twin-rod geometry prevents piston twisting, guiding heavy vertical lifts or precision presses where a single rod would allow unwanted rotational play.
Dual-Station Actuation
Mounts the primary workpiece on the front rod end and a rear cam or position flag on the opposing end to trigger DMSE electronic sensors behind the cylinder.
Is the Airtac SAID80 Double Rod Cylinder SAID80X400S the Right Cylinder?
Select this 80mm bore when an application demands identical push and pull forces, such as 2268N at 0.5MPa, or step down to the 63mm bore (1402N) if your load is lighter. The double-rod architecture is chosen over a single-rod SAI when you need to mount a secondary tool, a position flag, or achieve superior anti-rotation guidance for the payload. At a 400mm stroke, the extended unsupported rod length increases susceptibility to side-load bending; always use an external linear guide to support heavy off-center loads.
As a true ISO 15552 profile cylinder, it provides a drop-in dimensional replacement for other standard double-rod units, utilizing a specific mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Keep in mind the adjustable air cushions only decelerate the piston near stroke ends; they do not hold the load. If pressure is lost, the cylinder will drift, requiring an external rod lock or a BSAID clamp-lock cylinder for secure positioning.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID80 Double Rod Cylinder SAID80X400S FAQ
Because it is a double-rod cylinder, the effective piston area is identical in both directions. It provides an equal push and pull force of 2268N at 0.5MPa, 3175N at 0.7MPa, and 4082N at 0.9MPa.
Yes, the SAID80X400-S is dimensionally interchangeable per ISO 15552 profile standards. It uses the same mounting interface and accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2) as comparable cylinders, though you must account for the rear rod protrusion clearance.
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