Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-20S 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 SAIJ200AX85-20S
The AirTAC SAIJ200X85-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, pushing 28274N at 0.9 MPa, while its external stopper allows you to dial back the 85mm nominal stroke by up to 20mm, creating a precise 65-85mm usable travel window for exact end-position tuning.
This unit includes a SUS420J2 stainless steel rod (option A) for corrosion resistance and carries the -S magnet option for seamless integration with CMSE reed and DMSE electronic sensors. It uses PT tapered ports (G3/4) and relies on variable air cushions at both ends to decelerate the heavy 40mm rod, though it will not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-20S |
|---|---|
| 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 SAIJ200AX85-20S
| 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 SAIJ200AX85-20S Is Used
Heavy Pressing Operations
Provides up to 28274N of thrust for heavy-duty pressing, with the 65-85mm adjustable window allowing precise bottoming-out depth calibration per workpiece.
Product Size Changeovers
Quickly fine-tune the retract end-position during packaging line format changes without replacing the cylinder or adding mechanical external stops.
Automated Assembly Stops
Acts as a robust, high-force end-stop in automated assembly lines, using the rear adjuster to set the exact 65-85mm travel distance for varied component heights.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX85-20S the Right Cylinder?
Select this 200mm bore cylinder when your application requires extreme force that a 160mm bore cannot provide, as the 160mm option only yields 18095N at 0.9 MPa. The adjustable 65-85mm stroke is ideal for machine changeovers where the exact end-stop varies slightly by product size, eliminating the need to physically swap cylinders or bolt on external stops. Remember that the rear adjuster acts only as a travel stop, not a lock; for fail-safe load holding without live air, select the SAIL or BSAI series instead. When matching your ISO 15552 interchangeability, ensure you specify the 200mm bore, 85mm stroke, 20mm adjustment, PT ports, SUS420J2 rod, and the -S magnet.
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 SAIJ200AX85-20S FAQ
At 0.9 MPa, this 200mm bore cylinder generates a push force of 28274N and a pull force of 15080N. It can deliver a maximum force of 3204 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 85mm nominal stroke by up to 20mm, providing a usable travel window of 65 to 85mm. This allows you to fine-tune the end-position at commissioning without swapping 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 SAIJ200 Adjustable Cylinder SAIJ200AX85-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.