Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20
The AirTAC SAIJ200X325-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 325mm nominal stroke that can be fine-tuned backward by up to 20mm, yielding a usable travel window of 305 to 325mm. This allows operators to dial in exact end positions during commissioning without adding external physical stops.
Belonging to the 200mm bore class, it generates a substantial 21991N of push force at 0.7 MPa and 15080N of pull force. The piston rod utilizes a 40mm diameter SUS420J2 stainless steel construction (material code A) paired with an M36x2 thread, delivering high rigidity to withstand side loads. It uses a PT tapered G3/4 port and operates at speeds between 30 and 500 mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20 |
|---|---|
| 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 | 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 SAIJ200AX325-20
| 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 SAIJ200AX325-20 Is Used
Press Tooling Setup
Fine-tune the 305-325mm stroke window during machine commissioning to set precise pressing depths without swapping out the entire cylinder.
Product Changeovers
Quickly adjust the retract end-position on automated lines when transitioning between different product sizes or package formats.
Heavy Material Bending
Leverage the 21991N push force at 0.7 MPa for heavy-duty bending or forming tasks, using the rear stop to dial in the exact deflection limit.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-20 the Right Cylinder?
Choose this 200mm bore adjustable-stroke cylinder when your application requires massive thrust along with variable end-stop positioning for product size changeovers. If you need less force, stepping down to the 160mm bore yields 14074N of push force at 0.7 MPa, which might better suit mid-sized tooling. Because the 325mm stroke is relatively long, ensure you provide an external guide to support the load and prevent rod binding. The rear adjuster acts solely as a travel stop for deceleration and does not hold the load without live air pressure; for true fail-safe load holding, select the SAIL or BSAI series instead. This unit is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200AX325-20 FAQ
At an operating pressure of 0.7 MPa, this 200mm bore cylinder generates 21991N of push force and 15080N of pull force. It can reach a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 325mm nominal stroke by up to 20mm. This creates a usable stroke window of 305 to 325mm, enabling fine-tuning of the end position at commissioning. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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