Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 125mm 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.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting, adjustable stroke
- Rod threadM22×1.5
- 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 JSIJ80X125-75S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder brings on-site flexibility to high-thrust pneumatic setups. The hard-anodized aluminum barrel contains no external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. A G3/8 port feeds the 25 mm piston rod, while adjustable 29 mm air cushions absorb end-of-stroke shock.
The -75 code means an external adjuster can shorten the extend stroke by up to 75 mm on-site, yielding a usable 50 to 125 mm range without swapping the cylinder. This unit includes a built-in magnet for CMSE/DMSE sensors. In practice it handles about 1508 N of real work, which is roughly 128 kg lifted vertically with a 2:1 safety margin. Note that the adjuster only sets the end position; it does not lock the load on air loss, so add an external rod lock for vertical holding.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | 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 JSIJ80X125-75S Is Used
Press Stroke Tuning
Dial in the exact 50 to 125 mm extend reach on a light stamping or pressing station without machining new hard stops.
Variable Transfer Pusher
Adjust the extend push-off distance on the fly as product widths change on the packaging line.
Pallet Stop Mechanism
Set a precise pallet stop position on a roller conveyor, using the 2513 N thrust to halt heavy loads safely.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X125-75S the Right Cylinder?
When sizing this 80 mm bore, the neighboring 63 mm option yields 1559 N push at 0.5 MPa, whereas stepping up to the 100 mm bore provides 3927 N. The adjustable stroke is ideal when you need to fine-tune the extend end position across multiple machine variants or want a single spare part covering 50 to 125 mm strokes. Mounting choices include FA, LB, TC, TCM1, and TCM2 brackets. The -S suffix confirms the piston magnet is present for CMSE/DMSE switches. For any stroke length at or above 300 mm, always use a side-load guide rail to prevent rod bending.
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 JSIJ80X125-75S FAQ
This 80 mm bore cylinder uses a G3/8 air port and a 25 mm rod with an M22x1.5 thread. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum force of 513 kgf at 1.0 MPa.
The nominal stroke is 125 mm, but an external stop screw lets you shorten the extend stroke by up to 75 mm on-site. This gives a usable extend range of 50 to 125 mm. The retract end remains fixed, and the stop screw only sets the end position—it does not function as a load lock.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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