Airtac SAIJ200 Adjustable Cylinder SAIJ200BX250-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX250-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 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 SAIJ200BX250-20S
The AirTAC SAIJ200X250-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 230-250 mm usable travel window by allowing you to dial back the 250 mm nominal stroke by up to 20 mm. In the 200 mm bore class, it delivers a robust push force of 15708 N and a pull force of 15080 N at 0.5 MPa. The unit includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for position sensing.
This model uses PT tapered ports and achieves a maximum thrust of 3204 kgf at 1.0 MPa. The rear adjuster acts strictly as a travel stop for fine end-position tuning during commissioning. It does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX250-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX250-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200BX250-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200BX250-20S Is Used
Heavy Press Tuning
Dial in the exact 230-250 mm end position for high-force pressing operations without adding external mechanical stops.
Product Changeover
Quickly adjust the travel window on automated lines when product sizes change, saving setup time.
Large Clamp Setup
Fine-tune the clamping reach on large fixtures using the rear stopper while relying on the 15708 N force.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX250-20S the Right Cylinder?
Choose this 200 mm bore when your application requires extreme force, such as 15708 N at 0.5 MPa, stepping up significantly from the 160 mm bore which provides 10053 N. The adjustable stroke is ideal for product changeovers, letting you fine-tune the end stop from 230 to 250 mm without swapping cylinders or adding external stops. Unlike a fixed SAI cylinder, this built-in adjuster simplifies machine setup. Since the 250 mm stroke exceeds 300 mm? No, but even at 250 mm, the heavy 40 mm rod and M36x2 thread handle high stress, though an external guide is recommended for heavy loads. For load-holding without live air, use SAIL or BSAI. It is dimensionally interchangeable per ISO 15552.
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 SAIJ200BX250-20S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers a maximum thrust of 3204 kgf.
The rear adjuster lets you shorten the 250 mm nominal stroke by up to 20 mm, creating a 230-250 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not hold the load without live air.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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