Airtac MICJ Adjustable Mini Cylinder MICJ20X80-50
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X80-50 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 80mm 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
- Stroke80 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 MICJ20X80-50
Dial in the exact forward stop on-site with the AirTAC MICJ20X80-50, a round-body stainless-steel mini cylinder that cuts the extend end position by up to 50 mm. You get a usable extend range of 30-80 mm without swapping hardware, while the full retract stroke remains intact. The external screw sets the end position but does not function as a mid-stroke lock.
Built with a mildly corrosion-resistant stainless barrel and rod, this double-acting ISO 6432 unit pushes 157 N and pulls 131.9 N at 0.5 MPa. A needle-set adjustable air cushion at both ends soaks up high-speed shock near the stroke ends. This SKU lacks a magnet, so it cannot take CMSG, DMSG, or EMSG sensors; order the -S variant for position sensing. The 1/8" port and M8x1.25 male rod thread match standard mini-cylinder interfaces.
Airtac MICJ Adjustable Mini Cylinder MICJ20X80-50 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X80-50 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 MICJ20X80-50
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -50 | 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 MICJ20X80-50 Is Used
Adjustable Clamping Press
Secure parts of varying widths by tuning the 30-80 mm extend stop on the fly, using the 157 N push force to clamp without crushing delicate components.
High-Speed Divert Gate
Snap the gate out to deflect items on a fast line, relying on the adjustable air cushion to absorb the shock at the extend end without slamming.
Variable Stroke Tucking Arm
Tuck flaps on different box sizes using the 50 mm extend adjustment, moving about 8 kg of mechanism mass safely at high cycle rates.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X80-50 the Right Cylinder?
Size this bore carefully against your load. The 20 mm bore delivers a safe working load of roughly 94 N (about 60% of the 157 N push force at 0.5 MPa), meaning it moves about 8 kg vertically with a 2:1 safety margin. If your application requires less force, the smaller 16 mm bore offers 100.5 N push at 0.5 MPa but lacks the air cushion feature. If you need more power, stepping up to the 25 mm bore provides 245.3 N push at 0.5 MPa.
The adjustable extend stop and dual air cushions shine in fast set-position moves where you must repeatedly hit a precise forward spot and control impact. Remember that a plain cylinder does not hold its load on air loss; the piston drifts, and the cushion only decelerates near the end. For a held load, install an external rod lock or pilot check valve. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot-block is not available on this adjustable variant.
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 MICJ20X80-50 FAQ
This double-acting cylinder uses a 1/8" port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm (usable extend 30-80 mm), while the retract stroke remains full. A needle valve adjusts the air cushion at both ends to decelerate the piston near stroke ends, but it is not a mid-stroke lock. This specific SKU has no magnet and cannot take sensors; you need the -S variant for CMSG, DMSG, or EMSG switches.
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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