Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 140mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ20 mm
- Stroke140 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MICJ20X140-20
Dial in a precise forward stop on site with the AirTAC MICJ20X140-20, a stainless-steel round-body mini cylinder that lets an external screw shorten the extend stroke by up to 20 mm (yielding a usable 120-140 mm forward travel) while retaining full retract. Because the adjuster trims the extend end only, you set the exact impact point without swapping hardware. A needle-set adjustable air cushion at both ends soaks up high-speed shock, and the 1/8" port feeds an 8 mm rod to deliver 157 N of push force at 0.5 MPa.
Built with a riveted stainless barrel and rod for mild washdown resistance, this double-acting unit conforms to the ISO 6432 mounting interface for standard mini brackets. It delivers a computed safe working load of roughly 94 N (about 60% of the 0.5 MPa push figure), meaning it can vertically lift around 8 kg with a 2:1 safety margin. Note this SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; choose the -S variant if you require position detection.
Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 140 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MICJ20X140-20
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×140 | 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 (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20 Is Used
Divert Gate Positioning
Tunes a 120-140 mm extend stop to bump a divert gate precisely, using the dual air cushion to absorb the 157 N push impact at high cycle speeds.
Carton Flap Folding
Dials in the exact forward reach to fold varying box flaps without crushing the material, leveraging the 8 kg safe vertical lift capacity.
Light Part Ejection
Ejects light machined parts from a fixture, relying on the stainless construction for mild coolant washdown and the needle cushion to prevent end-cap banging.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X140-20 the Right Cylinder?
When sizing this 20 mm bore, stepping down to the 16 mm bore drops the 0.5 MPa push force to 100.5 N, while stepping up to the 25 mm bore raises it to 245.3 N. The adjustable stop plus dual air cushion shines in fast set-position moves where you must tune the forward impact without custom machining. Mount via LB foot, FA flange, or TC trunnion (the SDB pivot-block is not offered on this adjustable variant). Remember the stop screw sets the end position but is not a mid-stroke lock; the cushion only decelerates near stroke end. If the load must hold position on air loss, install an external rod lock or pilot check valve, as the piston will drift.
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 MICJ20X140-20 FAQ
This 20 mm bore cylinder features a 1/8" port and an 8 mm rod. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum force of 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 20 mm on site, while a needle-set adjustable air cushion at both ends decelerates the piston near stroke ends to soak up high-speed shock. This SKU has no magnet, so it cannot take sensors. The cushion only decelerates and does not 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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