Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke75 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 MICJ40X75-40S
Trimming the forward end by up to 40 mm on site, the AirTAC MICJ40X75-40S lets you dial in the exact extend position without swapping hardware. This double-acting round-body mini cylinder pairs that external stop screw with a needle-adjustable air cushion at both ends, soaking up high-speed shock right before the end of travel.
Built with a stainless-steel barrel and rod, the Ø40 body resists mild corrosion and washdown environments. It delivers a robust 628.3 N of push force at 0.5 MPa, making the safe working load roughly 377 N or about 32 kg of vertical lift with a 2:1 margin. A 1/4" port feeds the 16 mm rod, and the built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors for position tracking.
Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MICJ40X75-40S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S Is Used
Heavy Package Diverting
Pushes heavy cartons at high speed onto a secondary line, using the 40 mm extend adjustment to dial in the exact push distance and the air cushion to halt the 628.3 N stroke smoothly.
Pallet Stopper Gate
Acts as a robust stop for inbound pallets, absorbing the impact through the adjustable air cushion while the stainless construction holds up in damp loading dock environments.
Press Pin Seating
Drives pins into assemblies with a 377 N safe working load, relying on the external stop screw to fine-tune the seating depth without reprogramming the machine cycle.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X75-40S the Right Cylinder?
When sizing this 628.3 N @0.5 MPa unit, stepping down to the Ø32 bore drops the push force to 402.2 N, while no larger standard AirTAC mini cylinder exists above Ø40. This model is ideal for fast, settable-position moves where you need to tune the 35-75 mm extend window and use the dual cushions to decelerate heavy loads smoothly.
Keep in mind the stop screw sets the end position but does not function as a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve for holding. Mount via LB foot, FA flange, or TC trunnion (SDB pivot-block is not offered on this adjustable variant), and use the -S magnet for your electronic or reed 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 MICJ40X75-40S FAQ
This double-acting cylinder delivers a push of 628.3 N and a pull of 527.8 N at 0.5 MPa, and a push of 879.6 N and a pull of 738.9 N at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It uses a 1/4" air port and a 16 mm piston rod.
An external screw shortens the extend stroke by up to 40 mm on site, giving a usable forward range of 35-75 mm, while a needle valve adjusts the air cushion at both ends to decelerate the load near stroke end. The cushion only slows the piston and does not lock it; on air loss the piston drifts, so use an external rod lock to hold a load. The -S magnet enables CMSG, DMSG, and EMSG sensors.
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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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