Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75 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
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75
The AirTAC SAIJ200X85-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, generating 21991N of push force and 15080N of pull force at 0.7 MPa. The integrated adjustment screw allows you to trim the nominal 85mm stroke back by up to 75mm, creating a highly versatile 10-85mm usable travel window without swapping out the physical cylinder.
This pneumatic actuator uses a robust 40mm diameter piston rod with an M36x2 thread to manage high side loads effectively. The rod is constructed from SUS420J2 stainless steel (material code A) for superior corrosion resistance. Equipped with PT tapered G3/4 ports and variable air cushions at both ends, this extruded aluminum barrel design ensures controlled deceleration even at the maximum operating speed of 30-500mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75 |
|---|---|
| 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 SAIJ200AX85-75
| 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 SAIJ200AX85-75 Is Used
Heavy Press Tuning
Dial in the exact 10-85mm compression distance during machine setup to accommodate varying material thicknesses without changing tooling.
Product Changeover
Quickly adjust the rear stopper on the assembly line to shift end-positions for new product sizes, drastically reducing mechanical retrofit downtime.
Variable End-Stop Actuation
Provides a customizable travel limit for heavy-duty ejection systems where the final ejection distance must be fine-tuned per batch.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-75 the Right Cylinder?
Select this 200mm bore actuator when an application demands extreme force alongside precise end-position tuning at commissioning. If you need slightly less thrust, stepping down to a 160mm bore yields 14074N push force at 0.7 MPa, but the SAIJ200X85-75 guarantees maximum output for heavy-duty pressing. The rear adjuster acts solely as a mechanical stop to decelerate the travel end; it does not hold the load without live air. For true load-holding without continuous air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
To match this ISO 15552 dimensionally interchangeable cylinder, specify: 200mm bore, 85mm stroke, 75mm adjustment range, PT G3/4 port thread, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting options, and no position magnet. Note that while the 40mm rod handles significant bending loads, any application pushing toward the upper travel limits should still utilize an external guide rail to prevent rod distortion.
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 SAIJ200AX85-75 FAQ
At an operating pressure of 0.7 MPa, this 200mm bore cylinder provides a push force of 21991N and a pull force of 15080N. It can deliver a maximum push force of 28274N at 1.0 MPa.
The rear adjusting screw acts as a mechanical stop that allows you to shorten the nominal 85mm stroke by up to 75mm, creating a usable travel window of 10-85mm. It functions alongside the air cushion to set the end position, but it is not a lock and will not hold the load without live air pressure.
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