Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X300-100 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 300mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke300 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 MICJ40X300-100
Dial in a precise forward stop on-site with this 40 mm bore round-body mini cylinder, which lets an external screw shorten the extend stroke by up to 100 mm without swapping parts. The stainless-steel barrel and piston rod resist mild corrosion and washdown, while a needle-set adjustable air cushion at both ends soaks up high-speed shock to protect your tooling.
This non-ISO-6432 unit features a 1/4" port and an M12x1.25 male rod thread.
Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MICJ40X300-100
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -100 | 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 MICJ40X300-100 Is Used
Heavy Carton Diverting
Pushes loaded packaging carts at high speed, using the 100 mm extend trim to dial in the exact contact point and the air cushion to absorb the 628 N impact.
Stamping Pin Setter
Positions a marking pin on a washdown line, relying on the stainless build for mild corrosion resistance and the adjustable forward stop for precise depth.
Pallet Stopper Gate
Halts 32 kg pallets on a gravity conveyor, fine-tuning the extend end by up to 100 mm to match pallet widths without changing the cylinder body.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100 the Right Cylinder?
The 100 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward end without machining spacers, and the needle cushion handles high-velocity 30-800 mm/s cycles.
Because this SKU lacks the -S magnet, it cannot take CMSG, DMSG or EMSG sensors. Mount via LB foot, FA flange or TC trunnion (SDB pivot-block is not available). The stop screw sets the end position but is not a mid-stroke lock; the cylinder will drift on air loss, so add an external rod lock or pilot check valve to hold a suspended load.
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 MICJ40X300-100 FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port.
An external screw shortens the extend stroke by up to 100 mm, while a needle-set adjustable air cushion at both ends decelerates the piston near the ends. This cushion only absorbs shock and is not a brake. Also, because this SKU lacks the -S magnet, it cannot accept position 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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