Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 200mm 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.
- BoreØ125 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- 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 JSIJ125X200-40
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore actuator tackles heavy industrial tasks with ease. The extruded hard-anodized aluminum profile barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder. It connects via a G1/2 port and moves at 30-500 mm/s.
The external stop screw provides a 40 mm adjustment window, letting you trim the extend stroke down from the 200 mm maximum to 160 mm on-site without swapping the cylinder. This on-site tuning is ideal for dialing in exact end positions. Based on the 6136 N output, it handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin. Note that this SKU lacks a magnet and cannot take a CMSE/DMSE sensor.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×200 | 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 JSIJ125X200-40 Is Used
Press Fit Tuning
Dial in the exact 160 to 200 mm extend position on-site to seat bearings without bottoming out the tooling.
Heavy Pallet Stop
Use the massive 6136 N push force to halt loaded pallets, adjusting the stop distance by up to 40 mm as line conditions change.
Stamping Depth Control
Fine-tune the extend stroke window to set precise stamping depths on heavy-gauge materials without changing the cylinder.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40 the Right Cylinder?
When sizing this actuator, step down to an 80 mm bore if your force needs are lighter, as the 80 mm delivers 2513 N push at 0.5 MPa. If you need maximum thrust, this 125 mm bore is the top edge of the JSIJ range, offering 1251 kgf at 1.0 MPa. The -40 mm adjustable window is highly useful for sharing a single spare across multiple stroke variants or fine-tuning end positions on the machine. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a 200 mm stroke, keep side-load minimal by guiding the load properly. To add position sensing, you must select the -S variant, as this base SKU cannot accept a sensor.
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 JSIJ125X200-40 FAQ
At 0.5 MPa it pushes 6136 N and pulls 5734 N. At 0.7 MPa it pushes 8590 N and pulls 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. It uses a 32 mm rod, an M27x2.0 rod thread, a G1/2 port, and has 33 mm adjustable air cushions at both ends.
The external adjuster lets you shorten the extend stroke by up to 40 mm on-site, giving a usable extend range of 160 to 200 mm, while the retract end remains fixed. The stop sets the end position but is not a load lock. A plain cylinder drifts on air loss, so use an external rod lock or pilot-operated check valve for held loads.
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
Request a Quote for Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.