Airtac SAID40 Double Rod Cylinder SAID40X700S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X700S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 700mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X700S
The AirTAC SAID40X700-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a carbon steel through-rod that exits both end covers. Because the rod occupies both sides of the piston, the annulus area is identical in both directions, yielding an equal push and pull force of 528N at 0.5 MPa. The integrated -S magnet enables position detection via AirTAC CMSE reed or DMSE solid-state switches mounted along the dual sensor grooves.
A rod protruding from the rear cover allows engineers to mount a secondary cam, position flag, or drive a second mechanism independently of the primary workpiece. With a 700 mm stroke, this cylinder requires careful attention to rear-rod clearance and overall envelope dimensions during machine layout.
Airtac SAID40 Double Rod Cylinder SAID40X700S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X700S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40X700S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SAID40 Double Rod Cylinder SAID40X700S Is Used
Symmetric Force Transfer
Drives shuttle mechanisms requiring identical 528N push and pull thrust at 0.5 MPa without speed variation between stroke directions.
Anti-Rotation Slides
The dual through-rods provide high torsional resistance, keeping guided slides perfectly aligned over the 700 mm travel.
Rear-Rod Sensing
The -S magnet pairs with DMSE electronic switches on the rear groove to track a secondary flag rod without interfering with the primary tooling.
Is the Airtac SAID40 Double Rod Cylinder SAID40X700S the Right Cylinder?
Choose this 40 mm bore when an application requires 528N of symmetric force both ways; step down to a 32 mm bore for 345N if payload is lighter, or up to a 50 mm bore for 825N if you need higher thrust. The twin-rod architecture is selected over a single-rod SAI when the mechanism demands superior anti-rotation guidance, dual-side workpiece mounting, or rear-rod position sensing. This unit uses a PT tapered port thread and supports the reduced SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the stroke is 700 mm, the unsupported rod length increases susceptibility to side-load bending and rod-bearing wear; utilizing an external guide rail is strongly recommended. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end and do not hold a load if air pressure is lost. For position holding without live pressure, consider an external pilot-operated check valve or a BSAID clamp-lock cylinder.
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 SAID40 Double Rod Cylinder SAID40X700S FAQ
Because the double-rod design equalizes the piston area on both sides, the output force is identical in extend and retract directions. It provides 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa.
Yes, the SAID40X700-S is dimensionally interchangeable per ISO 15552 profile cylinder standards. It shares the same mounting interface and barrel profile, allowing it to serve as a drop-in replacement for other ISO 15552 double-rod cylinders.
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