Airtac SAID40 Double Rod Cylinder SAID40X180
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X180 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X180
The AirTAC SAID40X180 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 180mm stroke. Because a piston rod exits both end covers, the annulus area is identical on both sides, yielding exactly 528 N of output force in both extend and retract directions at 0.5 MPa. The barrel is extruded aluminum with sensor grooves machined on both sides for flexible mounting of CMSE or DMSE switches.
This through-rod architecture allows you to mount the primary workpiece on the front rod while using the rear protrusion for anti-rotation guidance, a cam, or a position flag. It uses standard PT tapered ports (G1/4) and features adjustable air cushioning at both ends to decelerate the piston smoothly. The standard carbon steel rod provides durable service in general industrial pneumatics.
Airtac SAID40 Double Rod Cylinder SAID40X180 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X180 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 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 SAID40X180
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×180 | 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 SAID40X180 Is Used
Twin-Station Actuation
Drives two separate operations from one cylinder, using the equal 528 N force on both the extend and retract strokes to power synchronous workstations.
Anti-Rotation Slides
The dual-rod design prevents piston rotation during travel, providing stable guidance for precision sliding fixtures without external guides.
Through-Rod Sensing
Mounts the workpiece on the front rod while utilizing the rear rod protrusion to trigger a physical limit flag or cam for external sequencing.
Is the Airtac SAID40 Double Rod Cylinder SAID40X180 the Right Cylinder?
Select this 40mm bore double-rod cylinder when an application requires symmetric force and speed both ways, offering 528 N at 0.5 MPa. If your mechanism needs less force, step down to the 32mm bore (345 N); if you need more thrust, step up to the 50mm bore (1154 N at 0.7 MPa). Choose the SAID over a single-rod SAI when you need dual-side guidance to prevent rotation or require a rear rod end for secondary mechanism timing.
This model is dimensionally interchangeable per ISO 15552, making it a drop-in replacement for other ISO 15552 double-rod cylinders. To configure, specify the 40mm bore, 180mm stroke, PT port thread, and choose mounting accessories from the SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this double-rod variant. The standard version lacks a magnet; add the -S suffix if you require position sensing. Since this is a standard double-acting cylinder, it will not hold a load if air pressure is lost—look to SAIL or BSAID variants if pneumatic locking is required.
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 SAID40X180 FAQ
The SAID40X180 provides equal force in both directions because the rod occupies both sides of the piston. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes, it is dimensionally interchangeable with ISO 15552 profile cylinders. However, the SAID mounting set is reduced to Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits the FB, CA, CB, and CR mounts found on single-rod variants.
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