Airtac SAI40 Standard Air Cylinder SAI40X500
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X500 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- 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 SAI40 Standard Air Cylinder SAI40X500
The AirTAC SAI40X500 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force and 528 N of pull force at 0.5 MPa. Its extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into standardized ISO 15552 mounting footprints. A 500 mm stroke makes this unit well-suited for mid-range linear actuation tasks requiring extended reach.
This configuration features a standard carbon steel piston rod and PT tapered port threads. The barrel incorporates dual sensor grooves, allowing for direct mounting of CMSE or DMSE switches if a magnet is specified later. For environments requiring higher thermal resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) compounds to match specific operating demands.
Airtac SAI40 Standard Air Cylinder SAI40X500 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X500 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 SAI40 Standard Air Cylinder SAI40X500
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 SAI40 Standard Air Cylinder SAI40X500 Is Used
Extended Transfer Pushing
Pushes products or pallets along a 500 mm transfer distance on assembly lines, utilizing 628 N of thrust to move moderate loads smoothly between stations.
Material Diverting
Actuates diverter arms in sorting conveyors where a long stroke is required to redirect packages into specific chutes or processing lanes.
Component Staging
Moves workpieces into machining position from a distant loading area, taking advantage of the 500 mm extension to keep operators safely away from the tooling.
Is the Airtac SAI40 Standard Air Cylinder SAI40X500 the Right Cylinder?
Selecting this 40 mm bore over the smaller 32 mm variant increases your thrust from 402 N to 628 N at 0.5 MPa, providing extra power for heavier payloads. If your application requires even greater force, stepping up to the 50 mm bore yields 982 N. Because this model features a 500 mm stroke, the extended rod is susceptible to bending under side loads; utilize an external guide rail or a guided cylinder to prevent premature rod-bearing wear.
As a standard double-acting actuator, this cylinder relies on continuous air pressure to maintain its position. If air is exhausted, the piston will drift, so applications requiring fail-safe holding should utilize the SAIL locking variant or an external pilot-operated check valve. Replacement is straightforward: match the 40 mm bore, 500 mm stroke, G1/4 port, and your required mounting accessory (such as LB foot or TC trunnion).
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 SAI40 Standard Air Cylinder SAI40X500 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes, the SAI40X500 is dimensionally interchangeable per ISO 15552. It shares standard mounting dimensions with other ISO 15552 profile cylinders, allowing for a direct drop-in replacement.
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