Airtac MICJ Adjustable Mini Cylinder MICJ40X350-20
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X350-20 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke350 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 MICJ40X350-20
Trim the forward stop by up to 20 mm on site without swapping cylinders. The AirTAC MICJ40X350-20 is a double-acting, round-body stainless-steel mini cylinder featuring a 350 mm stroke and an adjustable air cushion at both ends to soak up high-speed shock.
It uses a 1/4" port and a 16 mm rod. Note this non-magnetic SKU cannot take a sensor; adding the -S option enables CMSG/DMSG/EMSG switches.
Airtac MICJ Adjustable Mini Cylinder MICJ40X350-20 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X350-20 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MICJ40X350-20
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MICJ40X350-20 Is Used
Carton Flap Folder
Fold heavy corrugated flaps at speed; the dual adjustable air cushions absorb the impact at the end of the 350 mm travel to prevent crushing.
Vertical Parts Lowering
Lower 32 kg assemblies safely from an elevated track, tweaking the forward end position to clear a buffer zone before the cushion takes over.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X350-20 the Right Cylinder?
The external screw trims only the extend end position (usable 330-350 mm) and the needle-set cushion decelerates the load near stroke end, but neither acts as a mid-stroke lock. To hold a load on air loss, add an external rod lock or pilot check valve.
Mount using LB foot, FA flange, or TC trunnion brackets (SDB pivot-block is not offered). The stainless barrel and rod resist mild corrosion and washdown environments.
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 MICJ40X350-20 FAQ
The theoretical max force is 128.1 kgf at 1.0 MPa. This Ø40 bore uses a 1/4" port and a 16 mm rod.
An external screw shortens the extend stroke by up to 20 mm on site, while a needle valve adjusts the air cushion at both ends to decelerate the load. This specific SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors; you need the -S variant for that.
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.
Related AirTAC MICJ Cylinders
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