Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S 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 MICJ20X50-20S
Dial in the forward stop on-site without swapping hardware using the AirTAC MICJ20X50-20S, a stainless-steel round-body mini cylinder that shortens the extend stroke by up to 20 mm. The external stop screw sets the end position between 30 and 50 mm, while a needle-adjustable air cushion at both ends soaks up high-speed shock. An integrated piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing.
Built with a corrosion-resistant stainless barrel and rod, this double-acting ISO 6432 mini cylinder delivers 157 N of push force at 0.5 MPa via its 1/8" port. It provides a computed safe working load of roughly 94 N, meaning it can vertically lift about 8 kg with a 2:1 safety margin. The cushion only decelerates the piston near the ends and does not lock the load.
Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S |
|---|---|
| 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 MICJ20X50-20S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MICJ20X50-20S Is Used
Package Diverter Stop
Tunes the 20 mm extend stop to catch fast-moving cartons on a conveyor, letting the dual air cushions absorb the impact without slamming.
Light Part Pressing
Applies up to 157 N of push force at 0.5 MPa to seat small bearings, with the adjustable forward position ensuring consistent press depth.
Vertical Lift Gate
Raises an 8 kg access flap using the 0.5 MPa thrust, relying on the needle cushion to prevent end-of-stroke bounce.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S the Right Cylinder?
When sizing this 20 mm bore, step down to an MICJ16 for lighter duty (100.5 N push @0.5 MPa) or step up to an MICJ25 for heavier loads (245.3 N push @0.5 MPa). The MICJ20X50-20S is ideal for fast, settable-position moves where you need to tune the extend end without changing the whole actuator. Mount using standard ISO 6432 brackets like LB foot, FA flange or TC trunnion, noting the SDB pivot block is not offered on this adjustable variant.
Remember that a plain cylinder drifts on air loss, and the stop screw or air cushion only decelerates the piston rather than acting as a mid-stroke lock. To hold a load securely during a pressure drop, install an external rod lock or a pilot-operated check valve. The -S magnet enables reed or electronic sensors for precise end-of-stroke confirmation.
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 MICJ20X50-20S FAQ
This double-acting cylinder uses a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 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 20 mm on-site (retract remains full), while the needle-adjustable air cushion at both ends decelerates the piston at high speed. The -S indicates a built-in magnet for CMSG, DMSG or EMSG sensors; the cushion and screw do not lock the load mid-stroke.
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.
Related AirTAC MICJ Cylinders
Request a Quote for Airtac MICJ Adjustable Mini Cylinder MICJ20X50-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.