Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S
The AirTAC SAIJ63X115-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 115 mm nominal stroke that can be fine-tuned backward by up to 30 mm, yielding an effective usable travel window of 85 to 115 mm. This bore size generates 1559 N of push thrust and 1402 N of pull thrust at 0.5 MPa, making it well-suited for medium-force industrial handling.
This specific SKU is configured with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S variant, it contains a built-in magnet for non-contact position detection using AirTAC CMSE reed or DMSE solid-state switches.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 115 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 SAIJ63AX115-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×115 | 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 SAIJ63AX115-30S Is Used
Machine Changeover
Dial in the exact end-stop from 85 to 115 mm during product size transitions on a packaging line, eliminating the need to physically swap cylinders for different carton formats.
Sensor-Driven Positioning
Utilize the built-in magnet with DMSE solid-state sensors to confirm the adjusted retraction end-position in automated assembly stations, ensuring precise cycle timing.
Corrosive Environment Handling
Leverage the SUS420J2 stainless steel rod option for medium-force material ejection tasks in environments where moisture or coolant would degrade standard carbon steel rods.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30S the Right Cylinder?
Choose this 63 mm bore when a machine setup requires exact end-position tuning during commissioning or product changeovers without swapping out the physical cylinder. If your application needs less force, stepping down to a 50 mm bore yields 982 N of push force at 0.5 MPa; if you require significantly higher thrust, stepping up to an 80 mm bore provides 2513 N. Remember that the rear adjuster acts purely as a mechanical travel stop to set deceleration, not as a locking device. A plain SAIJ cannot hold a load without live air pressure, so for true load-holding you must specify a SAIL pneumatic lock or an external rod lock. To replace an ISO 15552 cylinder, match the 63 mm bore, 115 mm stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet requirement.
Because the 115 mm stroke is under the 300 mm threshold, side-load stress on the M16x1.5 rod thread is moderate, though external guides are still recommended for heavy lateral loads. Note that SAIJ supports a reduced mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
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 SAIJ63AX115-30S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 318 kgf of push force.
The rear external adjuster screw allows you to shorten the effective stroke by up to 30 mm. This turns the 115 mm nominal stroke into a variable 85 to 115 mm travel window, enabling fine-tuning of the end position at commissioning without adding external stops.
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