Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-100 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 SAIJ63X950-100
The AirTAC SAIJ63X950-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 950 mm nominal stroke that can be dialed back by up to 100 mm, yielding a usable travel window of 850 to 950 mm. This built-in adjustability allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. In the 63 mm bore class, it delivers a push force of 1559 N and a pull force of 1402 N at 0.5 MPa.
This model utilizes a carbon steel piston rod with an M16x1.5 rod thread, paired with a G3/8 port. It includes variable air cushions at both ends to manage deceleration over the long travel distance. The extruded aluminum barrel incorporates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic sensors when a magnet is specified. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-100 |
|---|---|
| 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 SAIJ63X950-100
| 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 SAIJ63X950-100 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 850 and 950 mm during machine commissioning to accommodate different material lengths without changing the cylinder.
Product Changeover Tuning
Quickly adjust the rear stopper by up to 100 mm on packaging or sorting lines when switching to a new product size, minimizing downtime.
Extended Reach Diverting
Leverage the 950 mm stroke to push items across wide conveyor belts, using the adjustable end position to fine-tune the diverting location.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X950-100 the Right Cylinder?
Selecting this 63 mm bore cylinder provides 1559 N of thrust at 0.5 MPa. If your application requires less force, stepping down to a 50 mm bore yields 982 N of push force while maintaining the same ISO 15552 footprint. The SAIJ63X950-100 is chosen over a fixed-stroke SAI when a variable end-stop is needed for product changeovers or fine-tuning machine setup. To match an ISO 15552 replacement, confirm the 950 mm stroke, 100 mm adjustment range, PT tapered port thread, and the required mounting accessory.
Because the stroke is 950 mm, the unsupported rod length increases susceptibility to side loads; an external guide is recommended to prevent rod binding. The rear adjuster acts strictly as a travel stop and the air cushions handle deceleration, but neither will hold the load without live air. For load-holding requirements without continuous pneumatic pressure, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ63X950-100 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
The rear adjusting screw acts as a mechanical stop that trims the effective travel. For the SAIJ63X950-100, you can shorten the 950 mm nominal stroke by up to 100 mm, resulting in an adjustable travel window of 850 to 950 mm.
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