Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S 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 SAIJ100BX850-30S
The AirTAC SAIJ100X850-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 850 mm stroke with a 30 mm adjustment range, giving you a precise 820-850 mm usable travel window for exact end-position tuning during commissioning. In the 100 mm bore class, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa, supplying robust power for heavy actuators.
This variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered ports. The extruded aluminum barrel features dual sensor grooves, and the included magnet (-S) directly supports AirTAC CMSE reed and DMSE solid-state switches for precise position detection.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S |
|---|---|
| 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 SAIJ100BX850-30S
| 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 SAIJ100BX850-30S Is Used
Machine Changeovers
Dial in the 820-850 mm travel window during product-size changeovers to set new end positions without physically swapping the cylinder.
Variable End Stops
Fine-tune the retract position on heavy conveyor diverters where the exact 850 mm stroke needs a 30 mm trim to align perfectly.
Assembly Line Setup
Adjust the stroke during initial commissioning to compensate for mechanical tolerances without installing external stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S the Right Cylinder?
Choose this 100 mm bore when a 80 mm bore (2513 N push at 0.5 MPa) lacks the necessary thrust, but a 125 mm bore would be excessive. The 30 mm rear adjuster allows you to fine-tune the retract end-stop without swapping cylinders or adding external stops, which is far more efficient than using a fixed-stroke SAI model. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder. Because the 850 mm stroke is long, an external guide is recommended to prevent excessive side-load on the 25 mm piston rod. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX850-30S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a mechanical stop that shortens the effective travel. For this 850 mm stroke model, it creates a usable 820-850 mm window, allowing precise end-position tuning without changing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.