Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-30S
The AirTAC JSIJ63~80 Adjustable Cylinder JSIJ63X300-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 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 JSIJ63X300-30S
Its extruded hard-anodized aluminum barrel is notably shorter than a same-bore ISO 15552 unit, saving valuable machine space without losing strength. The G3/8 porting feeds a double-acting double-rod mechanism rated for speeds of 30-800 mm/s.
The -30 code means an external adjuster can shorten the extend stroke on-site by up to 30 mm, giving a usable range of 270-300 mm for fine-tuning the end position without swapping the cylinder. The -S suffix adds a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-30S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 JSIJ63X300-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 63 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | 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 JSIJ63X300-30S Is Used
Dial-In Clamping Stops
Use the 30 mm extend-shortening window to fine-tune clamping depth on-site for parts with varying thicknesses, avoiding the need to physically swap out the whole cylinder.
Transfer Pusher Adjustment
Set the pusher end position anywhere between 270 mm and 300 mm to accommodate different box sizes on a packaging line without changing the fixed retract end.
Vertical Lift Positioning
Leverage the 79 kg vertical lift capacity and the on-site adjuster to precisely set the raise height of a palletizing stop, ensuring accurate placement every time.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ63X300-30S the Right Cylinder?
The adjustable stroke is highly useful when you need to share a spare cylinder across slightly different stroke variants or dial in an end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the stroke is 300 mm, always use an external guide rail to prevent rod bending and premature seal wear from side loads. The -S magnet allows for exact position sensing.
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 JSIJ63X300-30S FAQ
The theoretical maximum force is 318 kgf at 1.0 MPa. The cylinder features a G3/8 air port and an M18x1.5 rod thread.
The nominal 300 mm stroke is the maximum length. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable range of 270-300 mm. The retract end is fixed, and this stop only sets the end position; it does not lock the load.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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