Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-40 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 SAIJ200AX270-40
The AirTAC SAIJ200X270-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 230 to 270 mm, allowing you to dial back the nominal stroke by up to 40 mm during commissioning. Operating at 0.7 MPa, this massive 200 mm bore unit generates 21991 N of push force, while the SUS420J2 stainless steel rod (code A) provides excellent corrosion resistance and high side-load capacity.
The rear adjuster functions strictly as a mechanical stop to fine-tune the retract end position without adding external stops or swapping the cylinder. It is not a locking device and will not hold a load without live air pressure. For true load-holding requirements, consider the related SAIL or BSAI series. This model omits FB, CA, CB, and CR mounts, utilizing a reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) for simplified installation.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-40 |
|---|---|
| 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 SAIJ200AX270-40
| 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 SAIJ200AX270-40 Is Used
Heavy Press Fine-Tuning
Dial in the exact 230-270 mm retract position for heavy pressing tasks without physically swapping out the cylinder.
Product Changeover
Quickly adapt end-stops on a packaging line when product sizes change, using the 40 mm adjustment range for rapid setup.
Large Assembly Jigs
Provide massive 21991 N clamping force at 0.7 MPa while allowing operators to trim the stroke for different jig heights.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX270-40 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires immense thrust, delivering 21991 N at 0.7 MPa. If you need slightly less force, stepping down to a 160 mm bore yields 14074 N at the same pressure. The 230-270 mm adjustable travel window is ideal for product changeovers on automated lines, letting operators fine-tune end stops quickly. Since the total stroke is 270 mm, no external side-load guide is strictly required, but the heavy 40 mm rod and M36x2 thread handle substantial loads well.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 270 mm stroke, 40 mm adjustment, PT G3/4 port, and SUS420J2 rod material. Without a magnet (-S), this model cannot use CMSE or DMSE sensors. Remember that the rear adjuster and air cushions only decelerate the travel end; they do not hold the load pneumatically without continuous air supply.
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 SAIJ200AX270-40 FAQ
At 0.7 MPa, this 200 mm bore cylinder provides a push force of 21991 N and a pull force of 15080 N. It can deliver up to 28274 N push at 0.9 MPa.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from 270 mm down to 230 mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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