Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-100S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX850-100S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ100 Adjustable Cylinder SAIJ100AX850-100S
The AirTAC SAIJ100X850-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial the effective travel back by up to 100 mm. This yields a usable stroke window of 750 to 850 mm, providing immense flexibility for fine-tuning end positions during machine commissioning or product changeovers without swapping the physical cylinder. It delivers substantial thrust, pushing 7068 N at 0.9 MPa.
This unit includes a magnetic piston for position detection via CMSE reed or DMSE electronic sensors, and features an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance. The extruded aluminum barrel incorporates sensor grooves on three sides, and the PT tapered port threads match the G1/2 standard for this bore size.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-100S |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-100S
| 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 SAIJ100AX850-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 750-850 mm window during machine commissioning to accommodate varying product lengths without disassembling the actuator.
Product Changeover Systems
Rapidly adjust the stroke end-position on packaging or conveyor lines when switching to a different package size, using the rear screw to set the new travel limit.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX850-100S the Right Cylinder?
Selecting this 100 mm bore over the 80 mm variant provides a significant force jump, moving from 4523 N to 7068 N at 0.9 MPa, while stepping up further to 125 mm yields 11045 N. The adjustable rear stopper is ideal for setups requiring exact end-position tuning without adding external mechanical stops. However, the adjuster acts purely as a travel stop and does not lock the load; if position holding without live air pressure is required, consider the SAIL or BSAI series.
For an exact ISO 15552 interchangeability replacement, match the 100 mm bore, 850 mm nominal stroke, 100 mm adjustment range, G1/2 PT ports, and the -S magnet option. Because the 850 mm stroke is long and the 25 mm rod carries high side-load capacity, an external guide rail is strongly recommended to prevent rod binding and premature seal wear.
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 SAIJ100AX850-100S FAQ
The maximum thrust at 1.0 MPa is 801 kgf.
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 850 mm stroke by up to 100 mm, providing an effective travel range of 750 to 850 mm. It only sets the end position and does not hold the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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