Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 35mm stroke, G3/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ63 mm
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 29 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S
The external stop screw provides a 30 mm window to shorten the extend stroke on site, letting you fine-tune the end position down to a 5 mm minimum without swapping the cylinder. Because the nominal 35 mm stroke is the maximum, you can dial in the exact travel required for a specific task. The retract end remains fixed.
Built to JIS standards with an extruded hard-anodized aluminium profile barrel, this unit is physically shorter and more compact than an ISO 15552 cylinder of the same bore. The -S suffix means a built-in piston magnet is present, ready to accept CMSE or DMSE reed and electronic switches that drop directly into the side grooves. Pneumatic connections use a G3/8 port, and adjustable air cushions of 29 mm decelerate the piston at both ends. Note that the cushion only slows travel; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a load.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 35 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M18×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×35 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S Is Used
Short-Stroke Clamping
Dial in the exact clamping travel on machining fixtures by adjusting the extend stroke from 35 mm down to 5 mm on site.
Transfer Diverter
Fine-tune the pusher extension length on a packaging line without removing the cylinder or changing mounting hardware.
Sensor-Ready Sorting
Use the built-in magnet with CMSE switches to confirm part ejection positions while adjusting the stroke for varied product sizes.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S the Right Cylinder?
When sizing this actuator, check both directions: stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while moving up to an 80 mm bore raises it to 2513 N. The 63 mm bore sits in a versatile middle ground. The adjustable stroke shines when you need to share one spare cylinder across several stroke variants or dial in a precise end position during machine commissioning. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The integrated magnet supports CMSE/DMSE sensors for position feedback. For any application with a stroke of 300 mm or longer, always guide the load to prevent side-load damage to the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ 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 Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X35-30S FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. The air port size is G3/8.
The nominal 35 mm stroke is the maximum travel. An external stop screw lets you shorten the extend stroke by up to 30 mm on site, giving a usable extend range of 5 to 35 mm. The retract end is fixed, and this mechanism sets end position rather than locking the load.
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