Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 65mm 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
- Stroke65 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S
The AirTAC SAIJ200X65-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, providing 15708N push and 15080N pull at 0.5 MPa. By turning the rear stopper screw, you can trim the nominal 65mm stroke back by up to 40mm, creating a precise 25-65mm usable travel window for exact end-position calibration without adding external stops.
This large-bore unit incorporates a SUS420J2 stainless steel rod for enhanced durability against moisture and minor corrosion. The extruded aluminum barrel includes sensor grooves on both sides, and because this SKU includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-travel signaling. Pneumatic cushioning at both ends manages deceleration across its 30-500mm/s speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 65 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 SAIJ200AX65-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×65 | 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 SAIJ200AX65-40S Is Used
Heavy Press Calibration
Dial in the exact 25-65mm travel window during heavy press commissioning to accommodate varying material thicknesses without swapping out the entire cylinder.
Product Changeover Stops
Quickly adjust the end-position stop on a packaging line when switching between different product sizes, leveraging the 40mm trim range for rapid setup.
High-Force End Positioning
Utilize the 15708N push force at 0.5 MPa to move heavy pallets or industrial molds into place, relying on the rear stopper to fine-tune the final resting position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX65-40S the Right Cylinder?
Selecting this 200mm bore cylinder is necessary when your application requires extremely high force, as it yields up to 3204 kgf at 1.0 MPa. If your setup can operate efficiently on roughly 14074N push at 0.7 MPa, stepping down to a 160mm bore saves significant physical space and air consumption. Conversely, if you need less than 10000N of push force, a 125mm bore offers a much lighter footprint. The adjustable 25-65mm travel window is chosen over a fixed-stroke SAI when a machine requires fine-tuning during commissioning or product changeovers.
When replacing an ISO 15552 cylinder, match the 200mm bore, 65mm nominal stroke, 40mm adjustment range, PT tapered port thread, and the -S magnet. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Because the 65mm stroke is relatively short for this bore, side-loading is less pronounced than with long strokes, but the substantial 40mm rod and M36x2 thread still handle high mechanical stress well. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder.
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 SAIJ200AX65-40S FAQ
At an operating pressure of 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear of the cylinder features an external stopper screw that allows you to shorten the effective stroke by up to 40mm. This turns the nominal 65mm stroke into a 25-65mm adjustable travel window, enabling precise end-position tuning during commissioning without external stops.
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