Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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
- Stroke450 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 SAIJ200BX450-40S
The AirTAC SAIJ200X450-40-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks requiring exact end-position tuning. It integrates a rear adjusting screw that permits you to trim the nominal 450 mm stroke back by up to 40 mm, establishing a highly controllable 410-450 mm usable travel window. This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet for use with CMSE reed and DMSE electronic sensors.
Operating at 0.15-1.0 MPa, this 200 mm bore unit generates a substantial 15708 N of push force and 15080 N of pull force at 0.5 MPa. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. It utilizes a PT tapered G3/4 port and a robust M36x2 rod thread, while the variable air cushions at both ends decelerate the 30-500 mm/s motion effectively.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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 SAIJ200BX450-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×450 | 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 SAIJ200BX450-40S Is Used
Heavy Press Tuning
Dial in the exact 410-450 mm end-stop for large metal forming or pressing operations during setup, ensuring precise contact without mechanical overrides.
Product Changeover Stops
Adjust the rear travel stop on the fly to accommodate different pallet or package sizes on a high-capacity handling line without changing hardware.
Large Assembly Positioning
Fine-tune the retraction point of heavy automotive or industrial assembly jigs, using the 15708 N thrust to move substantial fixtures into place.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX450-40S the Right Cylinder?
Select this 200 mm bore model when an application demands immense thrust that smaller bores cannot provide; stepping down to a 160 mm bore would reduce your 0.5 MPa push force to 10053 N. The 40 mm rear adjuster is ideal for fine-tuning the end-of-stroke position during commissioning or product changeover without swapping the cylinder or adding external stops. Remember that the rear adjuster functions purely as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder.
Because this SKU features a 450 mm stroke, the extended 40 mm diameter SUS304 rod will carry significant side loads, but an external guide is still recommended to prevent premature wear. To replace an ISO 15552 cylinder, match the 200 mm bore, 450 mm stroke, 40 mm adjustment range, PT G3/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR.
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 SAIJ200BX450-40S 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. At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the nominal 450 mm stroke by up to 40 mm, creating a 410-450 mm usable travel window. It is used for fine-tuning end positions at commissioning and is not a lock; it will not hold the load without continuous air pressure.
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