Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 95mm 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
- Stroke95 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75
The AirTAC SAIJ63X95-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. Equipped with a 63mm bore and a 95mm nominal stroke, its external stopper screw allows you to dial back the travel by up to 75mm. This creates a highly flexible 20-95mm usable travel window, enabling precise end-position tuning at commissioning without swapping out the physical cylinder or adding external stops. Delivering 1559N of push force at 0.5MPa, it handles robust actuation while offering PT tapered port threads and a standard carbon steel piston rod.
Unlike fixed-stroke actuators, this model is designed for applications requiring variable end-stops and frequent product-size changeovers. The rear adjuster acts purely as a travel stop and works alongside the standard variable air cushions at both ends to decelerate the load; it does not hold the load in place without live air pressure. For position holding without continuous compressed air, a related SAIL pneumatic-lock cylinder or an external pilot-operated check valve would be required. The extruded aluminum barrel features sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is specified later.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 95 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 SAIJ63X95-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×95 | 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 SAIJ63X95-75 Is Used
Variable End-Stop Positioning
Dial in precise retract distances between 20 and 95mm during machine commissioning to accommodate multiple product sizes without physically replacing the cylinder.
Product Changeover Adjustment
Quickly reconfigure the effective stroke length on a packaging or assembly line by turning the rear stopper screw to match new material widths or heights.
Decelerated End-Positioning
Leverage the 36mm variable air cushion alongside the 75mm rear stopper to smoothly decelerate 1402N pulling loads at the end of the travel window.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X95-75 the Right Cylinder?
Selecting the SAIJ63X95-75 makes sense when your machine setup requires a wide 20-95mm adjustable end-stop range on a mid-sized actuator. At 0.5MPa it yields 1559N push and 1402N pull forces; if your process needs less force, stepping down to a 50mm bore gives 982N push, while moving up to an 80mm bore provides 2513N push. Because the nominal stroke is 95mm, no external side-load guide is strictly mandated, but the 20mm diameter carbon steel rod and M16x1.5 thread provide robust resistance to minor bending moments.
When specifying this ISO 15552 interchangeable profile cylinder, match your exact parameters: 63mm bore, 95mm stroke, 75mm adjustment range, PT tapered G3/8 port, and no magnet. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations, deliberately omitting FB, CA, CB, and CR styles to streamline the adjuster housing. Choose this adjustable variant over a fixed SAI cylinder when you need on-the-fly mechanical fine-tuning rather than a locked, immovable stroke length.
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 SAIJ63X95-75 FAQ
At an operating pressure of 0.5MPa, this 63mm bore double-acting cylinder generates 1559N of push force and 1402N of pull force. At the maximum pressure of 1.0MPa, it can deliver up to 318 kgf.
The rear adjusting screw acts as a mechanical stop that allows you to shorten the 95mm nominal stroke by up to 75mm, creating a usable travel window of 20-95mm. The adjuster only sets the end position and does not lock or hold the load without continuous air pressure.
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