Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20
The AirTAC SAIJ200X270-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty operations. It yields 15708N push and 15080N pull force at 0.5 MPa, scaling up to 21991N push at 0.7 MPa. By turning the rear stopper screw, you achieve a usable travel window of 250-270 mm, allowing precise end-position tuning without swapping out the entire actuator.
This extruded aluminum profile cylinder features a robust 40mm piston rod with an M36x2 thread, engineered to handle substantial side loads. The rod is constructed from SUS420J2 stainless steel (code A) for enhanced durability against harsh environments. It utilizes PT tapered ports (G3/4) and operates at speeds between 30-500 mm/s, supported by adjustable air cushions at both ends to decelerate heavy masses smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 270 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 SAIJ200AX270-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×270 | 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 SAIJ200AX270-20 Is Used
Heavy-Duty Pressing
Dial in the exact 250-270mm pressing depth during tooling setup to prevent over-travel on dense materials.
Product Changeovers
Quickly adjust the rear stopper screw by up to 20mm to accommodate different product heights on an assembly line without changing cylinders.
Large Assembly Jigs
Leverage the 15708N push force at 0.5 MPa to seat heavy components, fine-tuning the end position to match jig tolerances.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-20 the Right Cylinder?
Select this 200mm bore actuator when an application demands extreme force alongside positional flexibility, such as pressing or heavy clamping setups that require a variable end-stop. If 15708N at 0.5 MPa exceeds your requirements, stepping down to a 160mm bore provides 10053N of push force, optimizing space and air consumption. Conversely, if you need to hold a load securely without continuous live air pressure, a standard SAIJ is insufficient—the rear adjuster acts only as a travel stop, not a lock. In those cases, an AirTAC SAIL or BSAI clamp-lock cylinder is required.
When replacing an ISO 15552 cylinder, match the 200mm bore, 270mm stroke, 20mm adjustment range, G3/4 PT port, and the specific mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting FB, CA, CB, and CR options. Because the 270mm stroke is substantial, always pair this cylinder with an external guide to prevent rod bending under high side-loading conditions.
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 SAIJ200AX270-20 FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. If operated at 0.7 MPa, the push force increases to 21991N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 270mm nominal stroke by up to 20mm. This creates a usable travel window of 250-270mm for fine-tuning the end position at commissioning without adding external stops.
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