Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 85mm 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
- Stroke85 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S
The AirTAC SAIJ100X85-30-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial the usable travel back to a 55-85 mm window. It delivers 5497N of push force at 0.7 MPa and features a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides.
Equipped with a magnet for position detection, this model supports AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock or hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 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 SAIJ100BX85-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SAIJ100BX85-30S Is Used
Product Changeover Dials
Quickly adjust the end-of-stroke position from 85mm down to 55mm to accommodate varying product lengths on the same line without changing cylinders.
Machine Setup Tuning
Fine-tune the retract end position during commissioning to perfectly align parts, using the rear stopper instead of repositioning heavy mount assemblies.
Washdown Handling
Leverage the SUS304 stainless steel rod and 5497N output force for robust pushing tasks in environments requiring high corrosion resistance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-30S the Right Cylinder?
Choose this 100mm bore when an 80mm cylinder's 3518N push force at 0.5 MPa is insufficient, but you want to avoid stepping up to the heavier 125mm size. The 30mm adjustment range is ideal for product changeovers, allowing you to shorten the stroke from 85mm down to 55mm without adding external stops or swapping the cylinder.
For a direct ISO 15552 replacement, match the 100mm bore, 85mm nominal stroke, 30mm adjustment, PT tapered port threads, and the -S magnet requirement. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. If you need true load-holding without live air, consider the 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 SAIJ100BX85-30S FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder generates 5497N of push force and 5181N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear adjuster screw lets you mechanically shorten the nominal 85mm stroke by up to 30mm, creating a usable travel window of 55 to 85mm. This stopper only sets the end position and does not lock the load without live air pressure.
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