Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-20S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X325-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke325 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 SAIJ200X325-20S
The AirTAC SAIJ200X325-20-S is a double-acting, double-rod ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. Equipped with a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors for precise position feedback. By incorporating a rear adjusting screw, this model allows you to fine-tune the effective stroke within a 305 to 325 mm window, eliminating the need to swap hardware during product changeovers.
The robust 40 mm carbon steel rod and M36x2 thread provide exceptional rigidity, while the extruded aluminum barrel features dual sensor grooves. It supports a standard operating speed of 30-500 mm/s and includes variable air cushions at both ends to decelerate massive loads smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200X325-20S Is Used
Heavy Press Tuning
Dial in the exact 305-325 mm end-stop during heavy press commissioning to accommodate different material thicknesses without changing the cylinder.
Product Size Changeover
Adapt automated assembly lines to new product dimensions rapidly by adjusting the rear stroke screw rather than retooling the entire machine.
Guided Load Handling
Move massive payloads along a guided external rail system, relying on the 40 mm rod for structural integrity and the air cushions for smooth deceleration.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X325-20S the Right Cylinder?
Selecting this 200 mm bore cylinder is ideal when your application demands extreme force alongside positional flexibility. The adjustable 305-325 mm travel window is perfect for machines that require variable end-stops at commissioning without installing external physical stops. Because the stroke is 325 mm, an external guide should be used to support the load and prevent excessive side-loading on the rod.
For an exact ISO 15552 replacement match, verify the 200 mm bore, 325 mm stroke, 20 mm adjustment, PT tapered port thread, and the -S magnet option. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for positive load-holding, consider the SAIL or BSAI series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR configurations.
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 SAIJ200X325-20S FAQ
At the maximum operating pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the nominal 325 mm stroke by up to 20 mm, creating a usable travel window of 305 to 325 mm. It is a stop, not a lock, and cannot hold the load without continuous air pressure.
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