Airtac SAI100 Standard Air Cylinder SAI100BX850S
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100BX850S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm 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
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100BX850S
The AirTAC SAI100X850-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 5497 N push force at 0.7 MPa, this 100mm bore unit is built to handle substantial loads over its 850mm stroke. The extended extruded aluminum barrel includes sensor grooves on both sides, and because this model includes a magnet (-S), it integrates seamlessly with CMSE and DMSE reed switches for precise end-of-stroke positioning.
Configured for demanding environments, this specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance. Fluid ports utilize a PT tapered thread type. As a true ISO 15552 standard cylinder, it provides a dimensionally interchangeable mounting interface, allowing it to serve as a drop-in replacement for other ISO 15552 profile cylinders without requiring mechanical alterations.
Airtac SAI100 Standard Air Cylinder SAI100BX850S Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100BX850S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 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 SAI100BX850S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | 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 SAI100BX850S Is Used
Heavy Stamping Press
Provides the 5497 N push force at 0.7 MPa required to actuate heavy-duty stamping and forming dies in automated metal fabrication lines.
Pallet Diversion
Utilizes the 850mm stroke to extend across wide conveyor belts, pushing heavy product pallets onto parallel routing lanes at high speed.
Large Mold Handling
Deploys the SUS304 stainless steel rod to push heavy injection molds into and out of processing machines, resisting moisture and coolant exposure.
Is the Airtac SAI100 Standard Air Cylinder SAI100BX850S the Right Cylinder?
Selecting this 100mm bore is ideal when a 80mm bore falls short—yielding 2513 N at 0.5 MPa compared to the 100mm bore's 3927 N at the same pressure. At an 850mm stroke, the unsupported rod length is substantial. To prevent rod-bearing bending and premature seal wear under side load, implement an external guide rail or use a dedicated guided cylinder to absorb lateral forces.
This model operates at speeds of 30-800 mm/s. Remember that the standard adjustable air cushions at both ends only decelerate the piston near stroke end; they do not lock the rod. If your application must hold a vertical load without live air pressure, you must integrate an external pilot-operated check valve or select the SAIL or BSAI locking variant. Replacement matching requires a 100mm bore, 850mm stroke, G1/2 port, PT thread, and appropriate mounting accessories like FA flange 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 SAI100 Standard Air Cylinder SAI100BX850S FAQ
At an operating pressure of 0.7 MPa, the push force is 5497 N and the pull force is 3681 N. At 0.5 MPa, the push force is 3927 N.
No, an 850mm stroke creates a long unsupported rod that is vulnerable to bending under side load. You should use an external guide mechanism or a guided cylinder to handle lateral forces and protect the rod bearing.
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