Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-50
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 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 JSIJ80X350-50
Delivering 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder features an on-site extend-shortening mechanism. An external adjuster lets you trim the forward stroke by up to 50 mm, meaning the usable extension runs 300 to 350 mm while the retract end stays fixed. You can fine-tune the end position without swapping the whole unit. The extruded hard-anodized aluminium 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 roughly 128 kg lifted vertically with a 2:1 margin. Air connects via a G3/8 port, and adjustable air cushions of 29 mm decelerate the piston at both ends. Note that this SKU lacks a magnet and cannot take a CMSE or DMSE sensor; for that you need the -S variant. Also, the cushion only slows the piston, so fit an external rod lock or pilot-operated check valve if you must hold a load on air loss.
Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-50 Technical Specifications
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 JSIJ80X350-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ80X350-50 Is Used
Press Stroke Tuning
Dial in the exact 300 to 350 mm extend reach on a pressing station without machining new hard stops, using the 50 mm external adjuster to accommodate varying material thicknesses.
Transfer Line Diversion
Actuate a diverter arm where the end position needs occasional on-site tweaks to match new product sizes, leveraging the compact JIS profile to save valuable machine footprint.
Pallet Stopper Adjustment
Control pallet flow on a 80 mm bore line, shortening the extend stroke by up to 50 mm to handle different pallet depths while relying on the 29 mm cushions to absorb impact.
Is the Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X350-50 the Right Cylinder?
When sizing this 80 mm bore, look at the neighbouring options: a 63 mm bore gives 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. This model hits a solid middle ground for medium-heavy tasks. The 50 mm adjuster window is perfect when you need to share one spare across several stroke variants or dial in a precise end position on the machine. Mounting choices cover Basic, FA, LB, TC, TCM1, and TCM2. Because this is a 350 mm stroke, always support the piston rod against side loads with an external guide to prevent bending. Remember that without the -S suffix, this cylinder cannot host any magnetic sensors.
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 JSIJ80X350-50 FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it yields 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa. The air port size is G3/8.
The nominal maximum stroke is 350 mm. The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable extend range of 300 to 350 mm. The retract end is fixed. This mechanism sets the end position and is not a load lock.
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