Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X25-20S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X25-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 25mm 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
- Stroke25 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 JSIJ80X25-20S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore pneumatic actuator brings heavy-duty output to tight machinery. The hard-anodized aluminum profile barrel makes it shorter and more compact than a same-bore ISO 15552 cylinder. It handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, meaning the usable extend range is 5-25 mm while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder. This -S variant includes a built-in piston magnet for CMSE/DMSE sensors in the side grooves, and the G3/8 port matches the 80 mm bore specification.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X25-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X25-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 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 JSIJ80X25-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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 JSIJ80X25-20S Is Used
Short-Stroke Clamping
Provides 2513 N of clamping force at 0.5 MPa, with the 20 mm adjuster allowing precise tuning of the jaw closure distance on-site.
Controlled Pressing
Presses components with a 5 to 25 mm extend range, letting operators dial in the exact contact position without changing the physical mount.
Inline Product Stopping
Halts heavy pallets on a conveyor using the fixed retract position, while the adjustable extend screw sets the exact stopping face.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X25-20S the Right Cylinder?
When sizing this actuator, the 80 mm bore sits between the 63 mm option (which pushes 1559 N at 0.5 MPa) and the 100 mm option (pushing 3927 N at 0.5 MPa). The adjustable stroke window is ideal for sharing a spare cylinder across multiple stroke variants or dialing in a precise end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this -S model has a magnet, you can fit CMSE/DMSE reed or electronic switches directly into the profile grooves. For any stroke length at or above 300 mm, always use a guide rail to prevent side-load damage to the rod seal.
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 JSIJ80X25-20S FAQ
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa it pushes 3518 N and pulls 3175 N. The theoretical maximum force is 513 kgf at 1.0 MPa. It features an 80 mm bore, a 25 mm piston rod, a G3/8 port, an M22x1.5 rod thread, and 29 mm adjustable air cushions at both ends.
The nominal 25 mm extend stroke is the maximum. The external stop screw lets you shorten the extend stroke on-site by up to 20 mm, giving a usable extend range of 5 to 25 mm. The retract end remains fixed. This stop sets the end position and does not lock the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
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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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