Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S
The AirTAC SAIJ200X650-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, engineered to deliver immense thrust up to 15708N at 0.5 MPa. By integrating a 75mm adjustment mechanism, this model transforms the fixed 650mm stroke into a highly versatile 575-650mm usable travel window, allowing operators to dial in exact retract positions without external stops. The extruded aluminum barrel design incorporates sensor grooves on both sides, and the -S magnet option enables precise position detection via AirTAC CMSE reed or DMSE electronic sensors.
This heavy-duty actuator features a robust 40mm piston rod constructed from SUS420J2 stainless steel (code A) for superior corrosion resistance, paired with PT tapered port threads. While the rear adjuster and standard variable air cushions effectively decelerate the load at travel ends, neither component functions as a lock; the SAIJ cannot hold position without live air pressure. For applications requiring load-holding redundancy, AirTAC SAIL or BSAI clamp-lock cylinders are recommended.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 650 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 SAIJ200AX650-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×650 | 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 SAIJ200AX650-75S Is Used
Heavy Press Tuning
Fine-tune the 575-650mm retract position during heavy press commissioning to accommodate varying tool stack-ups without machining new spacers.
Product Size Changeover
Adjust the end-stop on the fly during automated line changeovers to handle different large-scale product dimensions while maintaining 15708N of clamping force.
Long-Stroke Alignment
Dial in exact material positioning over a 650mm stroke for heavy-duty alignment tasks, using the 40mm SUS420J2 rod to withstand harsh industrial environments.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX650-75S the Right Cylinder?
Selecting this 200mm bore actuator is ideal when your application requires maximum push force (up to 3204 kgf at 1.0 MPa) alongside frequent product changeovers, as the 75mm adjustment window accommodates varying material lengths without swapping hardware. If your process demands less thrust, stepping down to a 160mm bore yields 10053N of push force at 0.5 MPa, whereas moving up is unnecessary since this is the largest standard ISO 15552 profile size available. To ensure a true drop-in replacement, verify your ISO 15552 mounting dimensions, 650mm stroke, 75mm adjustment, PT port threads, and the -S magnet requirement.
Because this unit features a 650mm stroke, the 40mm SUS420J2 rod experiences significant extension; despite the substantial rod diameter handling high side loads, an external guide rail should be integrated to prevent rod bending and premature seal wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Operating speed is capped at 30-500 mm/s to maintain dynamic stability.
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 SAIJ200AX650-75S FAQ
This 200mm bore cylinder generates a push force of 15708N and a pull force of 15080N at 0.5 MPa, reaching a maximum of 3204 kgf at 1.0 MPa. The operational speed range is 30-500 mm/s.
The rear adjuster screw allows you to shorten the effective stroke by up to 75mm, creating a usable travel window of 575-650mm. This stopper fine-tunes the retract end-position at commissioning but does not lock the load without live air pressure.
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