Airtac MICJ Adjustable Mini Cylinder MICJ20X50-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X50-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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 MICJ20X50-30S
Trim the forward stop by up to 30 mm on-site without swapping hardware using this AirTAC MICJ20X50-30S round-body mini cylinder. The external screw sets the extend end position from 20 to 50 mm, while the needle-adjustable air cushion at both ends absorbs high-speed shock. It is a double-acting, stainless-steel riveted unit with a built-in magnet (-S) for CMSG, DMSG, or EMSG sensors.
Delivering 157 N of push force at 0.5 MPa, it handles a safe working load of roughly 94 N, moving about 8 kg vertically with a 2:1 margin. The Ø20 mm body uses the ISO 6432 mounting interface, features an M8x1.25 male rod thread, and ports at 1/8". The cushion only decelerates near the stroke end; it will not hold a load if air pressure drops.
Airtac MICJ Adjustable Mini Cylinder MICJ20X50-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X50-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 MICJ20X50-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -30 | 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 MICJ20X50-30S Is Used
Package Diverter Pusher
Dial in the extend stop to 35 mm to deflect light cartons on a conveyor without over-traveling, using the dual air cushions to absorb the 157 N impact at high speed.
Component Insertion Stop
Set a precise 20 mm forward position to press a small bushing into a housing, relying on the built-in magnet to confirm the end of stroke via a DMSG sensor.
Film Clamp Release
Adjust the extend end to release packaging film at a specific height, using the stainless barrel to resist mild washdown corrosion in food packing areas.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X50-30S the Right Cylinder?
At 0.5 MPa this Ø20 bore gives 157 N push and 131.9 N pull. If you need less force, the smaller Ø16 bore offers 100.5 N push; for heavier loads, the Ø25 bore provides 245.3 N push. This model is ideal for fast, repeatable set-position moves where the 30 mm extend adjuster and dual air cushions prevent hard impacts.
Because the stop screw only sets the end position, the piston will drift on air loss—use an external rod lock or pilot check valve for holding. Mount via LB foot, FA flange, or TC trunnion (SDB is not offered on this variant). The -S magnet enables position sensing, whereas a standard SKU cannot take a sensor.
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 MICJ20X50-30S FAQ
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it yields 219.8 N push and 184.7 N pull. The theoretical max force is 32 kgf at 1.0 MPa. This Ø20 bore uses a 1/8" air port and an M8x1.25 male rod thread.
An external stop screw shortens the extend stroke by up to 30 mm on-site, giving a usable forward range of 20-50 mm; retract remains full. Needle valves adjust the air cushion at both ends to decelerate the piston before impact. The -S suffix means it has a piston magnet for CMSG, DMSG, or EMSG sensors.
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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