Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-10 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 SAIJ100BX850-10
The AirTAC SAIJ100X850-10 is a double-acting ISO 15552 profile cylinder engineered with a rear mechanical stopper that allows you to fine-tune the retract position. Outfitted with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 7068N of push force at 0.9 MPa. The integrated -10 adjustment screw provides a usable travel window of 840 to 850 mm, enabling precise end-position calibration without adding external stops.
This 100 mm bore profile cylinder features variable air cushions at both ends to manage deceleration across its 850 mm stroke. The extruded aluminum barrel includes dual-side sensor grooves for straightforward position feedback. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, intentionally omitting the FB, CA, CB, and CR styles found on non-adjustable variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-10 |
|---|---|
| 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 SAIJ100BX850-10
| 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 SAIJ100BX850-10 Is Used
Machine Setup Calibration
Fine-tune the 840-850 mm retract end-position during initial commissioning to perfectly dial in tooling distances without machining new spacer blocks.
Product Changeover
Quickly adapt a packaging line for different carton sizes by turning the rear adjustment screw to modify the effective stroke on the fly.
Long-Stroke Assembly Press
Leverage the 7068N push force at 0.9 MPa to drive long-travel seating operations, using the adjustable stop to account for material thickness variations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-10 the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm option doubles the available thrust, jumping from 4523N to 7068N at 0.9 MPa. The 10 mm rear adjuster is ideal for machine setup and product changeover, letting you dial in the exact 840-850 mm travel limit on the fly rather than swapping to a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, confirm the 100 mm bore, 850 mm stroke, PT port threads, SUS304 (B) rod material, and the 10 mm adjustment range.
Because the 850 mm stroke is substantial, an external guide rail is strongly recommended to prevent rod side-loading and premature seal wear. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air; for true pneumatic locking without pressure, consider the AirTAC SAIL or BSAI series instead.
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 SAIJ100BX850-10 FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 10 mm. This creates a usable travel window of 840 to 850 mm, which is set at commissioning without needing to swap the cylinder.
The 100 mm bore generates 7068N of push force at 0.9 MPa and 5497N at 0.7 MPa. The maximum operating speed is 800 mm/s, supported by adjustable air cushions at both ends to control deceleration.
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