Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MICJ25X40-40
Dial in the forward stop on-site without swapping hardware: the AirTAC MICJ25X40-40 uses an external screw to shorten the extend stroke by up to 40 mm, while a needle-set air cushion at both ends soaks up high-speed shock. Built as a stainless-steel round-body mini cylinder, it resists mild corrosion and washdown environments.
This double-acting Ø25 bore delivers 245.3 N of push force at 0.5 MPa, yielding a safe working load of roughly 147 N or a vertical lift capacity of about 12.5 kg with a 2:1 margin. It conforms to the ISO 6432 mounting interface for standard mini brackets, uses a 1/8" port, and lacks a magnet—meaning this specific SKU cannot accept CMSG/DMSG/EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MICJ25X40-40
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MICJ25X40-40 Is Used
Adjustable Press Tonnage
Provides 245.3 N of push at 0.5 MPa for light stamping or pressing, using the 40 mm extend stop to set precise crush depth without reprogramming the machine cycle.
High-Speed Diverter Gate
Snaps a routing flap into place at 30-800 mm/s while the needle-set air cushion absorbs the end-of-stroke impact, preventing gate bounce on heavy carton lines.
Variable Carton Stopper
Acts as a 12.5 kg capacity vertical stop for product accumulation, allowing operators to manually dial the extend position in or out to accommodate different package heights.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40 the Right Cylinder?
When sizing this 245.3 N (0.5 MPa) unit, stepping down to the Ø20 bore drops thrust to 157 N, whereas the larger Ø32 pushes 402 N if your payload exceeds the 12.5 kg vertical lift threshold. The adjustable 40 mm extend stop paired with the dual air cushions is ideal for fast, settable-position moves that need smooth deceleration.
Because this is a non-magnet SKU, position sensing is unavailable; add the -S variant for CMSG/DMSG/EMSG switches. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is excluded on this adjustable type). Note that the stop screw sets the end position but does not lock mid-stroke—use an external rod lock or pilot check valve to hold a load on air loss.
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 MICJ25X40-40 FAQ
This Ø25 mm double-acting cylinder uses a 1/8" air port. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm on-site, and the needle-set air cushion at both ends decelerates the piston near the stroke ends to absorb shock. The cylinder does not hold position on air loss—the piston drifts—so use an external rod lock for holding. This SKU has no magnet and 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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