Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-75S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-75S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 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 JSIJ100X400-75S
The extruded hard-anodized aluminium barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit.
The external adjuster lets you trim the extend stroke on-site by up to 75 mm, giving a usable forward range of 325 to 400 mm while the retract end stays fixed. This means you can fine-tune the end position without swapping the cylinder. The -S suffix adds a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves. Note that the 33 mm adjustable air cushions only decelerate the load near the ends; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-75S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 JSIJ100X400-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ100X400-75S Is Used
Press Stroke Trimming
Dial in the exact 325 to 400 mm extend position on a heavy assembly press without machining new hard stops, using the external adjuster to fine-tune the clamping depth.
Pallet Positioning
Shift heavy 200 kg vertical loads in a high-flow dispatch zone, relying on the 100 mm bore thrust and compact JIS profile to save valuable machine footprint.
Dynamic Diverting
Actuate a heavy divert gate on a packaging line, using the -S magnet and CMSE/DMSE switches to confirm the gate reaches its adjusted extend position.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-75S the Right Cylinder?
When sizing this 100 mm bore actuator, compare it against the neighbouring 80 mm and 125 mm options. The 75 mm adjustable window is highly useful when you need to dial in a precise end position on the machine or want a single shared spare across several stroke variants. JSIJ mounting choices include Basic, FA, LB, TC, TCM1, and TCM2. Because the 400 mm stroke is long, always support the load with an external guide to prevent rod bending and excessive side loading. The -S magnet version supports CMSE/DMSE sensors 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 JSIJ100X400-75S FAQ
This 100 mm bore cylinder uses a G1/2 port and a 32 mm rod.
The nominal 400 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable range of 325 to 400 mm. The retract end remains fixed, and the stop only sets the end position, acting as a cushion rather than a load lock.
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1-Year Warranty
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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