Airtac MICJ Adjustable Mini Cylinder MICJ40X75-20
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X75-20 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke75 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 MICJ40X75-20
Dial in a precise forward stop without swapping cylinders using the AirTAC MICJ40X75-20. This round-body stainless-steel mini cylinder features an external screw that shortens the extend stroke by up to 20 mm on site, giving a usable forward range of 55 to 75 mm while retract remains full. A needle-set variable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
It uses a 1/4" port and an M12x1.25 male rod thread. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X75-20 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X75-20 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MICJ40X75-20
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -20 | 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 MICJ40X75-20 Is Used
Heavy Carton Diverter
Diverts heavy cartons on a packaging line, using the 20 mm extend stop to dial in the exact push distance while the air cushion absorbs the impact of fast 32 kg loads.
Pallet Stopper Gate
Acts as an adjustable stop gate for heavy pallets, trimming the extend position on-site to match pallet depth without changing the cylinder mount.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X75-20 the Right Cylinder?
The adjustable extend stop and dual air cushions shine in fast set-position moves where you must tune the forward end point and decelerate smoothly without physical swapping. It operates at 30-800 mm/s.
This cylinder does not hold position on air loss, as the piston drifts and the cushion only decelerates near the stroke end, so add an external rod lock or pilot check valve for suspended loads. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is not available on this adjustable variant). Because this SKU has no -S magnet, magnetic sensing is impossible.
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 MICJ40X75-20 FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm (retract stays full), while a needle valve adjusts the air cushion at both ends to decelerate high-speed moves. This specific SKU has no -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors; it is not a mid-stroke lock.
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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