Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S
The AirTAC SAIJ63X950-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 940-950 mm for precise end-position tuning. It delivers a robust 1559 N push force at 0.5 MPa, making it suitable for demanding actuation tasks. This version includes a magnetic piston for position sensing and uses a standard carbon steel rod with PT tapered ports.
Because the nominal stroke approaches the 1500 mm maximum limit for this bore, the 20 mm rod and M16x1.5 thread provide necessary rigidity, though an external guide is recommended for the extended length. The extruded aluminum barrel features sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic switches. You can fine-tune the retract position at commissioning without adding external stops, while relying on the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 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 SAIJ63X950-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×950 | 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 SAIJ63X950-10S Is Used
Machine Setup Fine-Tuning
Dial in the exact retract position within the 940-950 mm window during commissioning to align tooling without machining external spacers.
Product Size Changeover
Quickly adjust the 10 mm stroke end-stop on packaging lines when transitioning between different box lengths or product dimensions.
Long-Stroke Material Handling
Actuate large doors or pusher assemblies over 950 mm of travel, using the rear screw to compensate for mechanical drift over time.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-10S the Right Cylinder?
Select this 63 mm bore cylinder when you need moderate force—stepping down to a 50 mm bore yields 982 N push at 0.5 MPa, while stepping up to an 80 mm bore provides 2513 N. The adjustable stroke is ideal for applications requiring a variable end-stop or product changeover, offering a 10 mm trim range without swapping the cylinder for a fixed-stroke SAI model. For a true ISO 15552 replacement, match the 63 mm bore, 950 mm stroke, PT port, and -S magnet.
At 950 mm of travel, the unsupported piston rod is highly susceptible to side loads and sagging; always use an external guide rail to prevent premature seal wear. Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration—neither will hold the load without live air pressure. For load-holding requirements, consider an external rod lock or the AirTAC SAIL lock variant.
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 SAIJ63X950-10S 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 can deliver up to 318 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a 940-950 mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
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