Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke125 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- 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 MICJ Adjustable Mini Cylinder MICJ25X125-40
Dial in a precise forward stop on-site with the AirTAC MICJ25X125-40, a stainless-steel round-body mini cylinder that shortens the extend stroke by up to 40 mm via an external screw. The usable extend range becomes 85-125 mm, while retract remains full. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
Built with a stainless barrel and rod for mild corrosion resistance, this double-acting ISO 6432 mounting-interface unit delivers 245.3 N push and 206.1 N pull at 0.5 MPa. That translates to a safe working load of about 147 N, or vertically lifting roughly 12.5 kg with a 2:1 margin. It uses a 1/8" port and an M10x1.25 male rod thread. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -40 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 Is Used
Package Divert Stop
Tune the 40 mm extend stop to act as a precise physical gate for varying box sizes on a conveyor, relying on the 245.3 N push force to halt cartons securely.
Adjustable Forming Press
Set the exact forward depth for a light stamping or bending tool, using the dual air cushions to absorb the impact of the 12.5 kg effective moving mass at high speed.
Fill Head Positioning
Trim the extend endpoint on-site to lower a filling nozzle into different container heights, benefiting from the stainless construction during washdowns.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 the Right Cylinder?
For lighter tasks, the Ø20 bore yields 157 N push at 0.5 MPa; for heavier loads, stepping up to the Ø32 provides 402 N. The Ø25 hits a sweet spot, and its 40 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward endpoint without swapping hardware. The dual air cushions only decelerate the piston near the stroke ends—they do not lock or hold the load. If you need to prevent drift on air loss, add an external rod lock or pilot check valve.
This model drops into standard ISO 6432 mini brackets and clevises. You can use LB foot, FA flange, or TC trunnion mounts, but the SDB pivot-block is not offered on this adjustable variant. Because this specific SKU has no -S magnet, position sensing is unavailable.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
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 Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MICJ Adjustable Mini Cylinder MICJ25X125-40 FAQ
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical max force is 50 kgf at 1.0 MPa. This Ø25 bore uses a 1/8" air port.
An external screw shortens the extend stroke by up to 40 mm (usable extend 85-125 mm), while retract stays full. Needle valves adjust the air cushions at both ends to decelerate the piston near stroke ends. The cylinder does not hold position on air loss; use an external rod lock for that. This SKU has no magnet, so it cannot take sensors.
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.
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