Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 400mm 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
- Stroke400 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 SAIJ200BX400-40
The AirTAC SAIJ200X400-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers massive thrust, generating 28274N of push force at 0.9 MPa, making it suited for heavy-duty industrial handling. The integrated mechanism provides a usable travel window of 360 to 400 mm, allowing you to dial back the nominal 400 mm stroke by up to 40 mm during machine commissioning.
This unit uses a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments. It features PT tapered port threads (G3/4) and operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE solid-state switches, though this specific SKU is supplied without a magnet.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 400 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 SAIJ200BX400-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SAIJ200BX400-40 Is Used
Heavy Press Tuning
Fine-tune the 360-400 mm travel window during commissioning to achieve exact pressing distances on large metal components without adding external mechanical stops.
Product Changeover
Quickly adapt the end-stop position by up to 40 mm when switching between heavy product variants on an assembly line, minimizing downtime.
Large Material Handling
Leverage the 28274N push force at 0.9 MPa to move substantial loads, using the rear adjuster to compensate for mechanical wear or material thickness variations.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX400-40 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires extreme force, such as 15708N push at 0.5 MPa, and you need precise end-position tuning without swapping components. If your setup only requires 11045N of push force at 0.9 MPa, stepping down to the 125 mm bore saves space and air consumption. The rear adjuster acts solely as a travel stop to fine-tune the 360-400 mm window; it does not hold the load without live air pressure. For true load-holding, consider the SAIL or BSAI series, or use an external pilot-operated check valve.
Because the 400 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread will carry high side loads, but an external guide is still recommended to prevent rod bending. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR mounts.
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 SAIJ200BX400-40 FAQ
At an operating pressure of 0.9 MPa, this 200 mm bore cylinder generates a push force of 28274N and a pull force of 15080N. At 0.5 MPa, it provides 15708N of push force.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the 400 mm nominal stroke down to 360 mm. It decelerates the travel end but does not lock or hold the load without continuous air pressure.
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