Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-20
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 50mm stroke, G1/2 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.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM26×1.5
- CushionAdjustable, 33 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 JSIJ100~125 Adjustable Cylinder JSIJ100X50-20
The hard-anodized aluminium barrel keeps the assembly light, and the G1/2 port handles the air volume needed for rapid cycling.
The -20 code defines an external adjuster that lets you shorten the extend stroke on site by up to 20 mm, giving a usable forward travel of 30 to 50 mm without swapping the cylinder. The retract end remains fixed, and adjustable air cushions at both ends absorb the 33 mm cushion stroke to prevent end-impact. Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE sensors for position detection.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 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 JSIJ100~125 Adjustable Cylinder JSIJ100X50-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 Is Used
Press Clamping
Fine-tune the 30 to 50 mm forward clamping position on-site via the external adjuster to accommodate varying material thicknesses without changing the cylinder.
Transfer Diverter
Shorten the extend stroke by up to 20 mm on-site to set the exact diverting distance for different product widths on a packaging line.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 the Right Cylinder?
The on-site extend-shortening window is ideal when you need to fine-tune a clamping end position across multiple machines or want a shared spare for slightly different 30 to 50 mm strokes. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. For any stroke at or above 300 mm, always use a guide rail to prevent rod side-loading and premature seal wear.
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 JSIJ100~125 Adjustable Cylinder JSIJ100X50-20 FAQ
The air port is G1/2.
The -20 indicates an external adjuster that shortens the extend stroke by up to 20 mm on-site, giving a usable forward travel of 30 to 50 mm while the retract end stays fixed. The cylinder cannot hold a load on air loss; the cushion only decelerates, so use an external rod lock or pilot-operated check valve for load holding.
Authorized Export Seller
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.
Related AirTAC JSI Cylinders
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