Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20S 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 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
- 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 SAIJ200BX325-20S
The AirTAC SAIJ200X325-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 305 to 325 mm. Delivering 15708 N of push force at 0.5 MPa, it handles heavy-duty positioning. This variant includes a SUS304 stainless steel rod and a magnet for CMSE reed and DMSE electronic sensors.
The rear adjustment screw acts purely as a mechanical stop to trim the retract position and must not be confused with a lock. For load-holding without live air pressure, a SAIL or BSAI cylinder is required. This 200 mm bore unit uses G3/4 ports and omits FB, CA, CB, and CR mounts, supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 hardware.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20S |
|---|---|
| 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 | 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 SAIJ200BX325-20S
| 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 SAIJ200BX325-20S Is Used
Heavy Press Tuning
Dial in the exact 305-325 mm end position for large metal forming or press operations during setup.
Product Changeover
Quickly adjust the retract stop to accommodate varying product sizes on a heavy-duty assembly line.
Long-Stroke Guiding
Use the adjustable stop alongside an external guide to manage side loads on 325 mm stroke machinery.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20S the Right Cylinder?
Select this 200 mm bore cylinder when your application requires the maximum thrust class, as stepping down to a 160 mm bore reduces the push force to 10053 N at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI to allow precise end-position tuning during commissioning without adding external stops. Because the 325 mm stroke is long, an external guide is recommended to manage side loads on the M36x2 rod thread.
When matching ISO 15552 dimensions, confirm the 325 mm stroke, 20 mm adjustment range, PT tapered G3/4 ports, SUS304 rod, and the -S magnet for CMSE/DMSE sensors. Remember that neither the rear adjuster nor the variable air cushions will hold the load if air pressure drops.
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 SAIJ200BX325-20S FAQ
It provides 15708 N of push force and 15080 N of pull force at 0.5 MPa, reaching a maximum of 3204 kgf at 1.0 MPa.
The rear adjuster screw trims the effective travel back by up to 20 mm, creating a 305-325 mm usable window. It functions only as a travel stop, not a load lock.
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1-Year Warranty
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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