Airtac MICJ Adjustable Mini Cylinder MICJ40X400-100S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X400-100S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 400mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke400 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 MICJ40X400-100S
Dial in a precise forward stop on-site with this stainless-steel round-body mini cylinder, which trims the extend stroke by up to 100 mm via an external screw. The MICJ40X400-100S is a double-acting actuator featuring a variable air cushion at both ends to absorb high-speed shock, while the built-in magnet (-S) supports CMSG, DMSG and EMSG sensors for position feedback.
The stainless barrel and rod resist mild corrosion and washdown environments.
Airtac MICJ Adjustable Mini Cylinder MICJ40X400-100S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X400-100S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 MICJ40X400-100S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 MICJ40X400-100S Is Used
Heavy Carton Diversion
Pushes heavy cartons at high speed on a packaging line, using the 100 mm extend adjustment to dial in the exact push distance while the air cushion absorbs the impact at the end of the 400 mm stroke.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X400-100S the Right Cylinder?
There is no larger MICJ option. Choose this adjustable-stroke variant when you need to fine-tune the forward end position without swapping cylinders, pairing that set-position control with the adjustable air cushion for fast, high-impact moves.
The external stop screw and cushion only decelerate the piston near the stroke end; they do not lock or hold the load mid-stroke. If air pressure drops, the piston will drift, so add an external rod lock or pilot check valve for suspended loads. Mount using LB foot, FA flange or TC trunnion (SDB is not offered on this variant), and rely on the -S magnet for electronic or reed switch sensing.
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 MICJ40X400-100S 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 100 mm (usable range 300-400 mm), while the needle-set air cushion at both ends decelerates the piston near the ends to absorb high-speed shock. The -S magnet enables CMSG/DMSG/EMSG sensors. The stop screw and cushion do not lock or hold the load mid-stroke; if air is lost, the piston drifts, so use an external rod lock for suspended loads.
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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