Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-75 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 SAIJ100BX85-75
The AirTAC SAIJ100X85-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 3927N of push force at 0.5MPa and 7068N at 0.9MPa. With an 85mm nominal stroke and a 75mm adjustment range, the usable travel window is 10-85mm. This wide trim capacity is ideal for dialing in exact end positions during machine commissioning without swapping hardware.
This model features a SUS304 stainless steel rod (code B) for superior corrosion resistance. It uses a PT tapered G1/2 port and includes variable air cushions at both ends. The rear adjuster acts as a mechanical stop to set the travel end, not a lock, so it will not hold a load without live air pressure. For position holding, consider SAIL or BSAI cylinders.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-75 |
|---|---|
| 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 SAIJ100BX85-75
| 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 SAIJ100BX85-75 Is Used
Product Changeover
Dial in new end positions rapidly when switching product sizes on a packaging line without changing the cylinder.
Commissioning Tuning
Fine-tune the exact 10-85mm travel window during machine setup to perfect positioning without adding external stops.
High-Force Clamping
Leverage 7068N of push force at 0.9MPa for heavy-duty clamping tasks requiring precise stroke limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX85-75 the Right Cylinder?
Choose this 100mm bore when 50mm bore outputs (982N push at 0.5MPa) are insufficient but 125mm (6136N) is overkill. The 75mm adjustment range on an 85mm stroke is perfect for applications needing variable end stops or frequent product-size changeovers, unlike a fixed-stroke SAI cylinder. Since the stroke is under 300mm, side-load risks are minimal, but external guides are still recommended for heavy radial loads.
When replacing an ISO 15552 cylinder, match the 100mm bore, 85mm stroke, 75mm adjustment, PT G1/2 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting options. No magnet is specified, so CMSE or DMSE sensors cannot be used without modification.
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 SAIJ100BX85-75 FAQ
The 85mm nominal stroke can be mechanically dialed back by up to 75mm via a rear adjusting screw, providing a usable travel window of 10-85mm. The adjuster acts as a physical stop and does not lock the load without air pressure.
At 0.5MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At 0.9MPa, the push force increases to 7068N.
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Standard models usually ship in 3-4 days.
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