Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-100S
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-100S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 600mm 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
- Stroke600 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 JSIJ125X600-100S
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder is built for heavy-duty positioning. The extruded hard-anodized aluminium barrel omits external rods, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit. A G1/2 port feeds the chamber, while the integrated -S magnet allows CMSE/DMSE sensors to drop directly into the side grooves for precise end-of-stroke detection.
The external stop screw lets you shorten the extend stroke on-site by up to 100 mm, giving a usable range of 500 to 600 mm without swapping the cylinder; the retract end remains fixed. This adjuster sets the end position and is not a load lock. For real-world sizing, it handles about 3682 N of safe working load, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-100S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 JSIJ125X600-100S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×600 | 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 JSIJ125X600-100S Is Used
Heavy Press Tonnage
Provides up to 8590 N of thrust at 0.7 MPa for pressing bearings, with the 100 mm adjuster allowing precise on-site tuning of the bottom dead center without machine teardown.
Pallet Positioning
Shifts heavy loaded pallets along a conveyor, using the 500 to 600 mm extend window to adapt to varying pallet depths while the -S magnet confirms full extension.
Material Lowering
Lowers heavy fixtures or materials up to 313 kg vertically with a 2:1 safety margin, relying on external guides to manage the 600 mm stroke and prevent rod deflection.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-100S the Right Cylinder?
When sizing this actuator, stepping down to the 100 mm bore drops the 0.5 MPa push force to 3927 N, while moving up is not possible as 125 mm is the largest available JSIJ bore. The -100 mm adjustable window is highly useful for sharing a single spare across multiple stroke variants or fine-tuning the end position on-site. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because the 600 mm stroke is long, always use an external guide to prevent rod bending and side-load damage. The included -S magnet supports CMSE/DMSE switches for position feedback.
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 JSIJ125X600-100S 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 operates between 0.15 and 1.0 MPa, runs at 30-500 mm/s, and uses a G1/2 port with a 33 mm adjustable air cushion at each end.
The nominal 600 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke on-site by up to 100 mm, providing a usable range of 500 to 600 mm. The retract end is fixed. This stop only sets the end position and does not hold the load; for load holding on air loss, you need an external rod lock or pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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