Airtac SAIJ200 Adjustable Cylinder SAIJ200X55-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200X55-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 55mm 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
- Stroke55 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 SAIJ200X55-40
The AirTAC SAIJ200X55-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, designed to provide massive thrust in a compact footprint. It features a 200mm bore and a 55mm nominal stroke, yielding a usable travel window of 15 to 55mm. This specific adjustment range allows operators to dial in exact end positions during machine commissioning without needing external stops. At 0.5 MPa operating pressure, it generates 15708N of push force and 15080N of pull force.
This extruded aluminum profile cylinder includes sensor grooves on both sides for straightforward position feedback integration. It uses a G3/4 port and a robust 40mm carbon steel rod with an M36x2 thread, providing high resistance against side loads. The unit features variable air cushions at both ends to manage deceleration of heavy loads, operating effectively at speeds between 30 and 500 mm/s.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X55-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X55-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 55 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 SAIJ200X55-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×55 | 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 SAIJ200X55-40 Is Used
Heavy Duty Pressing
Ideal for high-force pressing operations where the exact bottoming position must be tuned within a 15-55mm window to prevent workpiece damage.
Machine Setup Changeover
Enables rapid adjustment of the retract end-position during product changeovers, eliminating the need to physically swap out cylinders or add shims.
Short-Stroke Clamping
Provides robust clamping force for large components, allowing operators to fine-tune the clamping depth directly at the rear stopper.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X55-40 the Right Cylinder?
Selecting this 200mm bore model is appropriate when an application demands extremely high force, such as 15708N push at 0.5 MPa, within a very short travel distance. If the application requires less force, stepping down to a 160mm bore provides 10053N of push force at 0.5 MPa, which might avoid oversizing. The adjustable stroke is chosen over a fixed SAI cylinder when the exact end-of-travel position needs fine-tuning on the fly, such as accommodating slight variations in workpiece dimensions during setup.
Because this cylinder features a 55mm stroke, it is well below the 300mm threshold where external side-load guides become strictly necessary, though the heavy 40mm rod naturally handles substantial loads. It is important to note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider the SAIL or BSAI series. This configuration uses PT tapered ports, carbon steel rod material, and no magnet. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ200X55-40 FAQ
At a standard 0.5 MPa operating pressure, this 200mm bore cylinder generates a push force of 15708N and a pull force of 15080N. It can reach a maximum push force of 28274N at 0.9 MPa.
The rear adjuster allows you to shorten the 55mm nominal stroke by up to 40mm, creating a usable travel window of 15 to 55mm. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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