Airtac MICJ Adjustable Mini Cylinder MICJ40X40-40
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X40-40 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 40mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke40 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 MICJ40X40-40
Cutting the forward stop down by up to 40 mm on-site, the AirTAC MICJ40X40-40 brings precision to heavy-duty pneumatic motion. This double-acting round-body mini cylinder pairs that external extend adjuster with a variable air cushion at both ends, letting you dial in the exact end position while soaking up high-speed shock. The stainless-steel barrel and piston rod supply mild corrosion and washdown resistance for demanding industrial environments.
As the largest bore in the series, the Ø40 body delivers substantial power, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa. It operates at 30-800 mm/s, uses a 1/4" port, and features an M12x1.25 male rod thread. Note this SKU lacks the -S magnet, meaning it cannot host CMSG, DMSG, or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X40-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X40-40 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MICJ40X40-40
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MICJ40X40-40 Is Used
Pallet Stopping
Halts loaded pallets on a high-speed line, relying on the adjustable air cushion to absorb impact and the external stop nut to set the precise braking position.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X40-40 the Right Cylinder?
When sizing this 40 mm bore, dropping down to the Ø32 model reduces the 0.5 MPa push force to 402.2 N, while no larger MICJ bore exists above it. Choose this heavy-duty variant when your application needs high thrust alongside a settable forward stop. The adjustable stroke and needle cushions excel in fast set-position moves, but remember the stop screw only trims the extend end—it is not a mid-stroke lock. If your load must hold position during air loss, install an external rod lock or pilot check valve, as the piston will drift.
Mounting options include LB foot, FA flange, and TC trunnion, along with CA, U, R, or CM back covers, but the SDB pivot-block is not available on this adjustable variant. Because this specific SKU ships without a magnet, it cannot support position sensing; upgrade to the -S version if you require CMSG, DMSG, or EMSG switches.
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 MICJ40X40-40 FAQ
This double-acting cylinder pushes with 628.3 N and pulls with 527.8 N at 0.5 MPa. 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, and it uses a 1/4" air port.
An external stop screw shortens the extend stroke by up to 40 mm on-site, letting you set the forward end position without swapping cylinders. Needle valves control a variable air cushion at both ends to decelerate the piston at high speed. This SKU has no -S magnet, so it cannot take sensors, and the cushion only decelerates—it is not a mid-stroke lock.
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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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