Airtac SAIJ200 Adjustable Cylinder SAIJ200BX375-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX375-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 375mm 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
- Stroke375 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 SAIJ200BX375-20S
The AirTAC SAIJ200X375-20-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a 375 mm nominal stroke paired with a rear mechanical adjuster that permits up to 20 mm of end-position trimming, establishing a usable travel window between 355 and 375 mm. Delivering 15708 N of push force at 0.5 MPa and 21991 N at 0.7 MPa, it handles massive payloads while operating at speeds of 30-500 mm/s.
This unit integrates a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing via CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward switch mounting. It supports a reduced set of ISO 15552 mounting interfaces—Basic, FA, LB, TC, FTC, TCM1, and TCM2—omitting the FB, CA, CB, and CR options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX375-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX375-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 375 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 SAIJ200BX375-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×375 | 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 SAIJ200BX375-20S Is Used
Heavy Press Tonnage Tuning
Dial in the exact 355-375 mm end-stop during initial commissioning to perfect heavy pressing operations without adding external mechanical spacers.
Product Size Changeovers
Rapidly adapt the stroke window on automated packaging lines when transitioning between large and small product dimensions.
Automated Assembly End-Positioning
Leverage the 21991 N thrust at 0.7 MPa to shift massive jigs into exact alignment, using the rear screw for fine final positioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX375-20S the Right Cylinder?
Select this 200 mm bore actuator when an application requires extreme thrust combined with on-the-fly stroke tuning, such as setting a variable end-stop during product changeovers without physically swapping the cylinder. If the 15080 N pull force at 0.5 MPa is excessive, stepping down to a 160 mm bore yields 9425 N of pull force, whereas remaining at 200 mm maximizes throughput. Because the 375 mm stroke exceeds typical short-travel boundaries, an external guide is strongly recommended to prevent excessive side-loading on the robust 40 mm rod and its M36x2 thread.
When specifying a drop-in replacement, match the 200 mm bore, 375 mm stroke, 20 mm adjustment range, PT tapered port threads, and the -S magnet. Remember that the rear adjuster functions strictly as a travel stop to decelerate the end-of-stroke position; 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 instead.
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 SAIJ200BX375-20S FAQ
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 21991 N.
The rear adjuster screw allows you to shorten the 375 mm nominal stroke by up to 20 mm, creating a usable travel window of 355-375 mm. This stopper fine-tunes the retract end-position at commissioning but does not lock the load without continuous air pressure.
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