Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 85mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke85 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 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 SAIJ200 Adjustable Cylinder SAIJ200BX85-75
The AirTAC SAIJ200X85-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5 MPa, making it suited for heavy-duty actuation. The integrated rear stopper allows you to dial back the nominal 85mm stroke by up to 75mm, creating a highly versatile 10-85mm usable travel window for precise end-position tuning during commissioning.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a PT tapered port thread. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts strictly as a travel stop to decelerate the load; it does not lock or hold the cylinder position without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | 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 SAIJ200 Adjustable Cylinder SAIJ200BX85-75 Is Used
Heavy Press Tuning
Fine-tune the 10-85mm travel window during heavy pressing operations to accommodate different material thicknesses without changing the cylinder.
Variable End Stops
Use the rear adjuster to set precise retraction endpoints on the fly during machine setup, eliminating the need to bolt on external mechanical stops.
Product Changeover
Rapidly adjust the actuation length on automated lines when switching between product sizes, leveraging the 75mm adjustment range for quick line conversions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX85-75 the Right Cylinder?
Choose this 200mm bore model when your application requires maximum force, as it delivers up to 3204 kgf at 1.0 MPa. If your thrust requirements are lower, stepping down to a 160mm bore yields 10053N push force at 0.5 MPa, which may optimize space and air consumption. The adjustable 10-85mm travel window is ideal for machine setups requiring variable end-stops or product changeovers without physically swapping cylinders, unlike a fixed-stroke SAI model.
For ISO 15552 interchangeability, match the 200mm bore, 85mm stroke, 75mm adjustment, PT G3/4 port, and standard mounting options (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is relatively short at 85mm, side-loading stress is minimized, but an external guide is still recommended for heavy loads. If you need true load-holding without live air, consider the SAIL or BSAI series, as this adjuster is not a brake.
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 SAIJ200 Adjustable Cylinder SAIJ200BX85-75 FAQ
At a 0.5 MPa operating pressure, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At its maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the effective stroke from its 85mm nominal length down to 10mm. This creates a 10-85mm adjustable travel window for precise commissioning without replacing the cylinder.
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