Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X80-75 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MICJ40X80-75
Dial in the forward stop on site without swapping cylinders: the MICJ40X80-75 uses an external screw to shorten the extend end position by up to 75 mm, giving a usable extend range of 5-80 mm. This double-acting, round-body stainless steel mini cylinder pairs that settable stop with an adjustable air cushion at both ends to soak up high-speed shock. The stainless barrel and rod resist mild corrosion and washdown environments.
As the largest bore in the series, this Ø40 model uses a 1/4" port and a Ø16 rod with an M12x1.25 male thread. Note this SKU lacks a magnet, so it cannot accept CMSG, DMSG or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -75 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75 Is Used
Heavy Diverter Gate
Shifts a weighted routing gate on a packaging line, using the 75 mm extend adjustment to fine-tune the gate angle while the air cushion absorbs the 32 kg load impact at high speed.
Press Pin Insertion
Drives a pin into a mild steel housing, dialing the extend stop down 75 mm to set the exact insertion depth without reprogramming the machine cycle.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X80-75 the Right Cylinder?
The combination of the 75 mm extend stop screw and the dual adjustable air cushions is ideal for fast moves where you must tune the impact deceleration on the fly.
Remember the stop screw sets the end position but is not a mid-stroke lock. The piston will drift on air loss, and the cushion only decelerates near the stroke end rather than holding the load. For position holding, install an external rod lock or pilot check valve. Mount using LB foot, FA flange or TC trunnion brackets, as the SDB pivot block is not offered on this variant.
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 MICJ40X80-75 FAQ
This Ø40 round-body mini cylinder uses a 1/4" port. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 75 mm, while a needle valve adjusts the air cushion at both ends to decelerate high-speed moves. The cushion is not a brake. The cylinder does not hold position on air loss and will drift; use an external rod lock for holding. This non-S SKU has no magnet, so it cannot accept 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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