Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-100 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 SAIJ100 Adjustable Cylinder SAIJ100X850-100
The AirTAC SAIJ100X850-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers robust thrust, generating 7068N of push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
This model features a nominal 850 mm stroke that can be fine-tuned down by up to 100 mm, creating a precise 750-850 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides, and the carbon steel rod paired with an M20x1.5 thread provides excellent structural rigidity for demanding industrial environments.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-100 |
|---|---|
| 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 SAIJ100 Adjustable Cylinder SAIJ100X850-100
| 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 SAIJ100 Adjustable Cylinder SAIJ100X850-100 Is Used
Heavy-Duty Machining Stops
Provides a rigid, adjustable end-stop for large machining fixtures, allowing operators to fine-tune the 750-850 mm travel window during part setup without external spacers.
Pallet Size Changeovers
Enables quick reconfiguration of automated conveyor lines handling varying pallet widths by simply turning the rear adjuster screw to modify the retraction point.
Large Assembly Presses
Delivers 7068N of push force at 0.9 MPa for pressing components, while the 100 mm adjustment range accommodates different assembly heights on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-100 the Right Cylinder?
Choose this 100 mm bore cylinder when an application requires substantial force that a smaller bore cannot provide; for context, an 80 mm bore yields 4523N of push force at 0.9 MPa, whereas this 100 mm unit reaches 7068N. The adjustable stroke is ideal for product-size changeovers, allowing operators to dial in the exact end position without swapping cylinders or adding external stops. Because the 850 mm stroke is relatively long, an external guide should be used to prevent excessive rod side-loading and premature seal wear.
To match this ISO 15552 dimensionally interchangeable cylinder, confirm a 100 mm bore, 850 mm stroke, 100 mm adjustment range, PT tapered port thread, and a carbon steel rod. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI series 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 SAIJ100 Adjustable Cylinder SAIJ100X850-100 FAQ
The rear adjuster screw acts as a mechanical stop that shortens the effective stroke. For this model, you can trim the nominal 850 mm stroke back by up to 100 mm, providing a usable travel window of 750 to 850 mm for precise end-position tuning.
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates a push force of 7068N and a pull force of 3681N. It operates efficiently at speeds between 30 and 800 mm/s.
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Standard models usually ship in 3-4 days.
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