Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S
Dial in a precise forward stop on-site with the AirTAC MICJ40X80-30S, a round-body stainless steel mini cylinder featuring a 30 mm adjustable extend stroke. An external screw trims the extend end position down from the 80 mm nominal stroke, letting you set the exact forward stop without swapping hardware. A needle-set variable air cushion at both ends soaks up high-speed shock, giving you control over both the final position and the impact deceleration.
Driven by a 40 mm bore, this double-acting actuator delivers 628.3 N of push force at 0.5 MPa, translating to a safe vertical lift of about 32 kg with a 2:1 margin. The stainless barrel and piston rod resist mild corrosion and washdown environments. Equipped with a built-in magnet (-S), it supports CMSG, DMSG and EMSG sensors, and uses a 1/4" port with an M12x1.25 male rod thread.
Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S Is Used
Product Diverting
Handles sturdy goods on a packaging line, using the 30 mm extend adjustment to tune the diverting stroke precisely while the dual air cushions absorb the high-speed impact of shifting heavier boxes.
Controlled Pressing
Applies up to 628.3 N of push force for light assembly pressing, dialing in the exact downward end position with the stop screw to prevent over-travel on delicate components.
Pallet Stop Gate
Acts as a rugged stop gate for heavier pallets, leveraging the stainless build for damp environments and the adjustable cushions to decelerate the load smoothly without slamming.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X80-30S the Right Cylinder?
At 0.5 MPa this 40 mm bore generates 628.3 N push and 527.8 N pull. If you need less force, the next size down is the 32 mm bore (402.2 N push); there is no larger standard MICJ bore. The adjustable extend stop and dual air cushions are ideal for fast, repetitive set-position moves where you need to tune out impact shock. The stop screw sets the end position but is not a mid-stroke lock.
Because a plain cylinder drifts on air loss, add an external rod lock or pilot check valve if the load must be held. For mounting, choose LB foot, FA flange or TC trunnion (the SDB pivot block is not offered on this adjustable variant). Position sensing requires the -S magnet already present here to fit 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 MICJ40X80-30S FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port. At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm, setting the forward end position. Needle valves adjust the variable air cushion at both ends to decelerate the piston near stroke ends. The cushion only slows speed; it is not a brake. The cylinder does not hold position on air loss and will drift without an external rod lock. The -S magnet allows CMSG, DMSG and EMSG sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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