Airtac MICJ Adjustable Mini Cylinder MICJ40X350-30
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X350-30 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 MICJ40X350-30
Dial in a precise forward stop on-site with the AirTAC MICJ40X350-30, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw shortens the extend end position by up to 30 mm, giving you a usable forward range of 320-350 mm without swapping hardware. Retract remains full stroke. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
The stainless barrel and piston rod resist mild corrosion and washdown environments. Note this SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; choose the -S variant for position detection. SDB pivot-block mounting is not offered on this adjustable-stroke build.
Airtac MICJ Adjustable Mini Cylinder MICJ40X350-30 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X350-30 |
|---|---|
| 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 MICJ40X350-30
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -30 | 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 MICJ40X350-30 Is Used
High-Speed Divertor
Moves products weighing up to 32 kg along a line, relying on the adjustable air cushions to absorb shock at the end of the 350 mm stroke for smooth deceleration.
Carton Forming Stop
Sets a precise 320 mm forward stop to fold large packaging flaps, trimming the extend stroke on-site while the stainless body handles washdown cycles.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X350-30 the Right Cylinder?
Since 40 mm is the largest available bore in this series, exceeding its capacity requires moving to a different cylinder family. The adjustable stop screw combined with dual air cushions is ideal for fast, settable-position moves where you must trim the extend end on the fly.
Keep in mind the stop screw sets the end position but acts as neither a mid-stroke lock nor a brake. The piston will drift on air loss, and the air cushion only decelerates near the stroke end. For a held load, install an external rod lock or pilot-operated check valve. Mount this cylinder using LB foot, FA flange, or TC trunnion hardware.
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 MICJ40X350-30 FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod.
An external screw shortens the extend stroke by up to 30 mm, while needle-set air cushions at both ends decelerate the piston near stroke ends. The cylinder does not hold position on air loss, as the screw is not a mid-stroke lock. This non-magnet SKU cannot take sensors; the -S version adds a magnet for CMSG, DMSG, or EMSG switches.
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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