Airtac MICJ Adjustable Mini Cylinder MICJ40X350-40
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X350-40 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 MICJ40X350-40
Dial in a precise forward stop without swapping cylinders using the AirTAC MICJ40X350-40. An external stop screw shortens the extend end position by up to 40 mm on site, giving a usable forward range of 310-350 mm, while a needle-set variable air cushion at both ends soaks up high-speed shock. As a double-acting round-body mini cylinder, it features a stainless-steel barrel and rod for mild corrosion and washdown resistance.
Note this specific SKU lacks a magnet and cannot accept position sensors; the -S variant is required for CMSG, DMSG, or EMSG switches.
Airtac MICJ Adjustable Mini Cylinder MICJ40X350-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X350-40 |
|---|---|
| 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 MICJ40X350-40
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -40 | 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 MICJ40X350-40 Is Used
Press Clamping Stop
Dial in the exact 330 mm clamping depth using the 40 mm extend adjuster, allowing fine-tuning of the forward stop on the production floor without changing hardware.
Vertical Gate Lift
Raise and lower access gates in washdown zones; the stainless construction handles mild corrosion while the dual cushions prevent slamming at high cycle rates.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X350-40 the Right Cylinder?
When sizing this 40 mm bore, stepping down to the MICJ32 drops the 0.5 MPa push force to 402.2 N, while no larger standard bore exists in this series. Choose this model when you need fast, settable-position moves up to 350 mm where the dual cushions can manage the kinetic energy. The external screw sets the extend end position but is not a mid-stroke lock.
Because a plain cylinder does not hold its load on air loss, the piston will drift if pressure drops—the cushion only decelerates near the stroke end, acting as a brake. For a suspended load, specify an external rod lock or pilot-operated check valve. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot-block is not available 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 MICJ40X350-40 FAQ
At 0.7 MPa, push is 879.6 N and pull is 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 40 mm on site, while the needle-set variable air cushion at both ends decelerates the piston near the ends to absorb high-speed shock. This cylinder does not hold position on air loss—the piston drifts—so use an external rod lock for suspended loads. This SKU has no magnet and cannot take 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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