Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S
The AirTAC SAIJ63X200-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 125 to 200 mm, allowing you to trim the nominal 200 mm stroke by up to 75 mm during commissioning. This bore delivers 1559 N of pull force at 0.5 MPa, making it well-suited for medium-duty positioning tasks.
Equipped with a -S magnet, the barrel works seamlessly with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side sensor grooves. This specific SKU utilizes a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the end position; it does not lock or hold the load without sustained air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×200 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S Is Used
Changeover Calibration
Dial in the exact retract distance during product size changeovers using the 75 mm rear stopper screw, avoiding the need to physically swap out the cylinder.
End-Position Trimming
Fine-tune the final retract position within the 125 to 200 mm travel window during machine commissioning to perfect part seating and clamping.
Sensor-Driven Sorting
Leverage the integrated -S magnet alongside DMSE electronic sensors to confirm piston position for automated sorting and logic sequencing.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S the Right Cylinder?
Selecting this 63 mm bore cylinder makes sense when a machine requires exact end-position tuning without swapping hardware. If your application needs less force, stepping down to a 50 mm bore yields 825 N of pull at 0.5 MPa. For higher thrust, an 80 mm bore provides 2268 N. Here, the 75 mm adjustment window is ideal for product changeovers, letting you dial in the retract distance on the fly rather than adding external stops.
When ordering a replacement for an ISO 15552 machine, match the 63 mm bore, 200 mm stroke, 75 mm adjuster, PT port thread, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 200 mm stroke is under the 300 mm side-load threshold, the 20 mm rod handles standard loads well, though long unsupported strokes still require an external guide. For load-holding without live air, consider the SAIL or BSAI series instead.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX200-75S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 75 mm. This creates a usable travel window of 125 to 200 mm, allowing fine-tuning of the end position without replacing the cylinder.
At 0.5 MPa operating pressure, this double-acting cylinder provides 1559 N of pull force and 2182 N of push force. It can deliver up to 318 kgf at its maximum 1.0 MPa pressure rating.
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