Airtac SAI100 Standard Air Cylinder SAI100AX550S
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100AX550S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke550 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100AX550S
The AirTAC SAI100X550-S is a double-acting ISO 15552 profile cylinder engineered for substantial actuation tasks. It delivers a robust 5497 N push force at 0.7 MPa, making it well-suited for moving heavy assemblies over its 550 mm stroke. The extruded aluminum barrel omits tie rods, presenting a clean exterior that drops into standard ISO 15552 mounting interfaces.
This specific configuration incorporates a SUS420J2 stainless steel rod (material code A) for enhanced resistance to corrosion and surface scoring. The -S suffix denotes an integrated magnet, allowing seamless operation with CMSE or DMSE reed switches housed in the barrel's dual-side sensor grooves. Fluid routing utilizes PT tapered port threads, and the unit relies on adjustable air cushions at both ends to decelerate the piston smoothly.
Airtac SAI100 Standard Air Cylinder SAI100AX550S Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100AX550S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI100 Standard Air Cylinder SAI100AX550S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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 SAI100 Standard Air Cylinder SAI100AX550S Is Used
Heavy Stamping
Provides the 5497 N of thrust required to actuate large metal forming presses and heavy-duty stamping dies over a 550 mm travel distance.
Pallet Diversion
Shifts heavy palletized loads across material handling lines, utilizing the integrated magnet for mid-stroke position sensing.
Automated Welding
Positions large automotive sub-assemblies into robotic welding cells, where the SUS420J2 stainless rod withstands weld spatter and plant debris.
Is the Airtac SAI100 Standard Air Cylinder SAI100AX550S the Right Cylinder?
When sizing this actuator, stepping down to a 80 mm bore reduces the 0.5 MPa push force to 2513 N, whereas moving up to a 125 mm bore increases it to 6136 N. Because this model features a 550 mm stroke, the extended rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and cylinder failure, mount external linear guides or utilize a dedicated guided cylinder to absorb lateral forces.
The adjustable air cushion strictly decelerates the piston near the stroke endpoints and does not function as a braking mechanism. If your machinery loses air pressure or the control valve is centered, the piston will drift and drop the load. For vertical applications requiring true fail-safe holding, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. This SAI model is dimensionally interchangeable per ISO 15552 and accepts standard FA, FB, and TC mounting accessories.
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 SAI100 Standard Air Cylinder SAI100AX550S FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder generates a push force of 5497 N and a pull force of 3681 N. At 0.5 MPa, the push force is 3927 N.
No, the standard SAI cylinder lacks a physical lock. The adjustable air cushion only slows the piston near stroke ends but cannot hold a load if pressure is lost. For vertical load holding, use the SAIL (air-released lock) or BSAI (clamp-lock) variants.
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