Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X20-20S
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X20-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 20mm 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
- Stroke20 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 JSIJ80X20-20S
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder brings heavy-duty actuation into a chassis noticeably shorter than a same-bore ISO 15552 unit. The hard-anodized aluminium barrel skips external rods for a clean exterior, and the G3/8 port feeds the 25 mm piston rod. Because the nominal 20 mm stroke represents the maximum extend length, the external adjuster lets you dial the end position back by up to 20 mm right at the machine. This yields a usable extend stroke of 0 to 20 mm while the retract end stays fixed.
The integrated -S magnet supports CMSE and DMSE sensors that clip directly into the side grooves for precise position feedback. In practical terms the bore handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin. Note that the adjustable stop screw sets the end position but does not lock the load; you will need an external rod lock or pilot-operated check valve to hold a suspended weight if air pressure drops.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X20-20S Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X20-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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 JSIJ80X20-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×20 | 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 JSIJ80X20-20S Is Used
Short-Stroke Clamping
Apply 2513 N of clamping force to heavy workpieces, using the 20 mm adjuster to set the exact grip depth without swapping cylinders.
Positioned Pressing
Press bearings or pins into housings and fine-tune the final 0 to 20 mm downward stop on-site to prevent over-travel damage.
Transfer Diverter
Actuate a routing gate on a packaging line where the compact JIS profile saves space and the CMSE sensors confirm the gate position.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X20-20S the Right Cylinder?
When sizing this unit, stepping down to a 63 mm bore yields 1559 N push at 0.5 MPa, while moving up to a 100 mm bore provides 3927 N, giving you clear boundaries for this 80 mm class. The adjustable-stroke feature is ideal when you need to fine-tune a short end position on-site or want a single spare part that covers slight stroke variations across multiple machines. You can mount it using the basic body, FA, LB, TC, TCM1, or TCM2 brackets. The -S suffix ensures you have the magnet ready for electronic or reed switches. Since the 20 mm stroke is well under the 300 mm threshold, side-load risks are minimal, but always guide the load for smooth operation.
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 JSIJ80X20-20S FAQ
This 80 mm bore cylinder uses a G3/8 air port. 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 20 mm stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 0 to 20 mm, while the retract end remains fixed.
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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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Most inquiries answered within 7-8 hours.
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