Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 275mm 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
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S
The AirTAC SAIJ63X275-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 275 mm stroke that can be fine-tuned back by up to 10 mm, creating a precise 265-275 mm usable travel window. Delivering 1559 N of push force and 1402 N of pull force at 0.5 MPa, it fits perfectly into mid-range pneumatic setups. This variant features a SUS420J2 stainless steel rod, PT tapered ports, and an integrated magnet for position sensing.
The external adjusting screw acts strictly as a mechanical stop to trim the retract end-position, meaning it does not hold the load without live air pressure. For machine changeovers, this built-in adjustability eliminates the need to swap cylinders or bolt on external stops. The extruded aluminum barrel includes sensor grooves on both sides, fully compatible with AirTAC CMSE reed and DMSE electronic switches.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 275 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 SAIJ63AX275-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×275 | 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 SAIJ63AX275-10S Is Used
Machine Changeover
Dial in the 265-275 mm retract end-stop during product size changes without swapping out the entire cylinder assembly.
End-Position Tuning
Fine-tune the exact retraction point at commissioning to compensate for mechanical tolerances in your fixture.
Adjustable Ejection
Set the precise ejection distance for varying part sizes, using the 10 mm rear stopper to limit the travel window.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX275-10S the Right Cylinder?
Select this 63 mm bore when your application requires the 1559 N push force at 0.5 MPa, which steps up from the 982 N provided by the 50 mm bore. The adjustable stroke is ideal for commissioning fine-tuning or variable end-stops, offering an advantage over fixed-stroke SAI cylinders when exact positioning is required. Since this is a 275 mm stroke, the 20 mm diameter rod and M16x1.5 thread handle reasonable side loads, but long unsupported strokes still necessitate an external guide to prevent binding.
As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. To match this exact configuration, specify the 63 mm bore, 275 mm stroke, 10 mm adjustment range, PT port thread, SUS420J2 rod material, and the -S magnet option. It utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Remember that the adjuster and air cushions only decelerate the travel end; for true load-holding without live pressure, consider an external rod lock or the SAIL series.
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 SAIJ63AX275-10S FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At the maximum pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 275 mm nominal stroke by up to 10 mm, resulting in a usable travel window of 265-275 mm. It sets the end position but does not lock the load without live air pressure.
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