Airtac SAIJ200 Adjustable Cylinder SAIJ200BX180-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX180-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 180mm 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
- Stroke180 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 SAIJ200BX180-40S
The AirTAC SAIJ200X180-40-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. Equipped with a rear adjusting screw, this model allows you to trim the nominal 180 mm stroke back by up to 40 mm, creating a precise 140-180 mm usable travel window without swapping hardware. It delivers substantial thrust, generating 15708 N of push force and 15080 N of pull force at 0.5 MPa.
Built for demanding environments, this variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches. Fluid must be filtered to 40 um, and the cylinder utilizes variable air cushions at both ends to decelerate the massive 3204 kgf maximum load safely.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX180-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX180-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 180 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 SAIJ200BX180-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×180 | 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 SAIJ200BX180-40S Is Used
Heavy Machinery Changeover
Dial in the 140-180 mm stroke window during product size changes on large presses, avoiding the need to physically swap out heavy ISO 15552 cylinders.
High-Force Positioning
Leverage the 15708 N push force at 0.5 MPa to move massive jigs, using the rear stopper to fine-tune the exact end-of-stroke position at commissioning.
Corrosive Metal Forming
Utilize the SUS304 stainless steel rod in humid or washdown forming environments where carbon steel rods would degrade, ensuring consistent 30-500 mm/s operation.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX180-40S the Right Cylinder?
Select this 200 mm bore cylinder when your application requires extreme force—stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N, whereas this SAIJ200X180-40-S provides 15708 N. The adjustable stroke is ideal for product changeovers on heavy machinery, allowing you to dial in the 140-180 mm travel window during commissioning rather than adding external mechanical stops. Because the stroke is 180 mm, side-load risks are moderate, but always ensure adequate external guiding for the 40 mm diameter rod.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 180 mm nominal stroke, 40 mm adjustment, and PT tapered ports. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For dead-load holding, use an external rod lock, a pilot-operated check valve, or transition to an AirTAC SAIL or BSAI series cylinder.
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 SAIJ200BX180-40S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum rated pressure of 1.0 MPa, it can deliver up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 180 mm nominal stroke by up to 40 mm. This creates a usable travel window of 140-180 mm for fine-tuning end positions without changing the cylinder.
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