Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 185mm 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
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S
The AirTAC SAIJ200X185-100-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. By dialing back the travel up to 100mm, this SKU provides a usable stroke window of 85-185mm, allowing you to fine-tune the retract end position at commissioning without swapping out the unit. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5MPa, making it ideal for heavy-duty positioning.
This model is equipped with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear adjuster functions strictly as a travel stop to set deceleration, not as a lock to hold the load without live air.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 185 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 SAIJ200AX185-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×185 | 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 SAIJ200AX185-100S Is Used
Heavy-Duty Press Tuning
Dial in the exact 85-185mm end-stop during machine commissioning to perfect pressing force without machining custom spacers.
Variable Product Changeover
Quickly adapt the retract distance on an automated line when switching between product sizes, using the 100mm adjuster to set new limits.
Large Assembly Positioning
Leverage the 15708N push force at 0.5MPa to move heavy pallets into place, relying on the M36x2 threaded rod for secure tooling attachment.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-100S the Right Cylinder?
Choose this 200mm bore when the 160mm class (10053N push at 0.5MPa) is insufficient for your heavy loads. The 100mm adjustment range is exceptionally wide, perfect for machinery that undergoes frequent product-size changeovers, eliminating the need for external physical stops. Because the 185mm stroke exceeds 300mm? No, but the massive 40mm rod and M36x2 thread handle high side loads; however, for long unsupported travels, an external guide is still recommended.
For drop-in ISO 15552 interchangeability, match the 200mm bore, 185mm stroke, 100mm adjustment, PT tapered port threads, and the -S magnet. If your application requires the cylinder to hold its position without continuous compressed air, the rear stopper here will not act as a brake; you should instead look at the SAIL air-released lock or BSAI clamp-lock series.
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 SAIJ200AX185-100S FAQ
At 0.5MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. It can achieve up to 3204 kgf at its maximum 1.0MPa pressure.
The rear adjuster acts as an external stopper that can shorten the effective travel by up to 100mm. For this 185mm nominal stroke cylinder, it creates an adjustable travel window of 85-185mm, allowing precise end-position tuning without changing the cylinder.
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