Airtac MICJ Adjustable Mini Cylinder MICJ40X350-50
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X350-50 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 MICJ40X350-50
Dial in a precise forward stop without swapping hardware: this round-body stainless-steel mini cylinder lets an external screw shorten the extend end by up to 50 mm on site, giving a usable 300-350 mm forward range while retract stays full. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact at once.
Built as a double-acting riveted unit with a 1/4" port and M12x1.25 male rod thread, the 40 mm bore pushes 628.3 N at 0.5 MPa. The stainless barrel and rod resist mild corrosion and washdown. Note this is a non-ISO-6432 size, and because this SKU lacks the -S magnet, it cannot take CMSG, DMSG or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X350-50 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X350-50 |
|---|---|
| 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 MICJ40X350-50
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -50 | 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 MICJ40X350-50 Is Used
Pallet Flap Folding
Folds heavy cardboard flaps on a washdown line where the stainless build resists moisture, tuning the forward stop to 320 mm so the flap clears the box without crushing it.
Vertical Lift Gate
Raises a 30 kg access gate using the 0.5 MPa push force, using the adjustable extend screw to set the exact open height and the needle cushion to prevent slamming at the top.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X350-50 the Right Cylinder?
At 40 mm this is the largest bore in the MICJ family, pushing 628.3 N at 0.5 MPa. If you need less force, stepping down to the 32 mm bore drops the push to 402.2 N; there is no larger MICJ option. The 50 mm extend trim plus dual adjustable air cushions are ideal for fast, repeatable set-position moves where you must tune the forward stop and decelerate a heavy load without slamming.
Remember the stop screw sets the end position but is not a mid-stroke lock, and the cushion only decelerates near the end of travel. The piston will drift on air loss, so fit an external rod lock or pilot-operated check valve to hold a suspended load. Mount using LB foot, FA flange or TC trunnion (the SDB pivot-block is not offered on this adjustable 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 MICJ40X350-50 FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm on site, while needle valves adjust the air cushions at both ends to absorb high-speed shock. The cushions only decelerate near stroke end and do not lock the load. This specific SKU has no magnet and cannot take CMSG, DMSG or EMSG sensors; you need the -S variant for sensing.
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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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