Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40S 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 MICJ25X40-40S
Tune the forward stop on-site without swapping hardware: the AirTAC MICJ25X40-40S uses an external screw to shorten the extend stroke by up to 40 mm, paired with a needle-adjustable air cushion at both ends to soak up high-speed shock. This double-acting, round-body stainless-steel mini cylinder delivers 245.3 N of push force at 0.5 MPa and drops directly into ISO 6432 mini-cylinder mounting brackets.
The Ø25 bore runs an M10x1.25 male rod thread and a 1/8" air port. Because this SKU includes the -S magnet, it is ready for CMSG, DMSG, or EMSG position switches. Based on the 0.5 MPa thrust, expect a safe working load around 147 N, or a vertical lift capacity of roughly 12.5 kg with a 2:1 safety margin.
Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40S |
|---|---|
| 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 MICJ25X40-40S
| 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 MICJ25X40-40S Is Used
Adjustable Sorting Diverter
Dial in the 40 mm extend stop to route packages of varying sizes on a conveyor without changing the cylinder mount, using the cushions to absorb the 12.5 kg load impact.
Light Press Assembly
Apply up to 147 N of safe working force to seat small components, relying on the needle-set air cushion to prevent end-of-stroke bounce at high speeds.
Sensor-Ready Clamping
Use the built-in -S magnet with DMSG switches to confirm clamp positions on stainless parts, adjusting the extend stroke on the fly for different fixture heights.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X40-40S the Right Cylinder?
If 245.3 N push is too much, step down to the Ø20 bore (157.0 N push @0.5 MPa); if you need more power, move up to the Ø32 bore (402.2 N push @0.5 MPa). The 40 mm extend adjuster and dual cushions shine in fast set-position moves, letting you dial in the exact forward stop while controlling impact. Mount via LB foot, FA flange, or TC trunnion (SDB is not offered on this adjustable variant). Remember that the stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads.
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 MICJ25X40-40S FAQ
This Ø25 mm cylinder features a 1/8" air port and an M10x1.25 male rod thread. 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 of 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm on-site, while the retract stroke remains full. Needle valves adjust the air cushion at both ends to decelerate the piston near the end of travel. The -S suffix means a magnet is included for CMSG, DMSG, or EMSG 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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