Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-20S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke100 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 MICJ40X100-20S
Dial in a precise forward stop on-site with the AirTAC MICJ40X100-20S, a round-body stainless-steel mini cylinder featuring a 20 mm adjustable extend stroke. An external screw trims the forward end position down from the 100 mm nominal stroke, while a needle-set variable air cushion at both ends soaks up high-speed shock.
The stainless barrel and rod resist mild corrosion and washdown environments. Because this is an -S SKU, it includes a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Keep in mind the stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads.
Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MICJ40X100-20S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -20 | 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 MICJ40X100-20S Is Used
Heavy Package Diverting
Shift heavier cartons on a 1/4" port pneumatic diverter, using the 20 mm extend adjuster to set the exact push distance and the air cushion to absorb the impact of fast 628.3 N strokes.
Press Fit Dialing
Execute light-duty press operations by tuning the forward stop down from 100 mm, allowing precise depth control for component seating without needing custom spacers.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20S the Right Cylinder?
If your application requires less force, dropping down to the 32 mm bore reduces push output to 402.2 N. The 20 mm extend adjuster and dual air cushions are ideal for fast, repeatable set-position moves where you need to tune the impact without swapping physical components.
Mount this actuator using LB foot, FA flange, or TC trunnion brackets; the SDB pivot-block is not available on this adjustable variant. The -S magnet enables position sensing with CMSG, DMSG, or EMSG switches. Remember that the air cushion only decelerates near the stroke end and does not function as a brake.
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 MICJ40X100-20S FAQ
This 40 mm bore double-acting cylinder uses a 1/4" air port. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm on-site, while the needle-set variable air cushion at both ends decelerates the piston to absorb high-speed shock. The -S designation means it has a built-in magnet for CMSG, DMSG, or EMSG sensors. The cushion only decelerates near the end of travel and does not act as a mid-stroke lock; the piston will drift on air loss, so use an external rod lock for holding.
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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