Airtac MIJ Adjustable Cylinder MIJ8X50-20S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ8X50-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø8mm bore and 50mm stroke, M5×0.8 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.
- BoreØ8 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
About the Airtac MIJ Adjustable Cylinder MIJ8X50-20S
Dial in a precise forward end position on-site with the AirTAC MIJ8X50-20S, a round-body stainless-steel mini cylinder that lets you shorten the extend stroke by up to 20 mm via an external stop screw. This double-acting actuator drops directly into standard ISO 6432 mini-cylinder brackets and clevises, while the stainless barrel and rod resist mild corrosion in washdown environments. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position sensing.
At 0.5 MPa, this Ø8 bore generates 25.1 N of push force and 18.8 N of pull force, yielding a safe working load of roughly 15 N or a vertical lift capacity of about 1.3 kg with a 2:1 margin. The M5x0.8 port and M4x0.7 male rod thread keep the envelope compact. Fixed TPU bumper pads decelerate the piston at the stroke ends, operating at speeds from 30 to 800 mm/s across a -20 to +70 °C temperature range.
Airtac MIJ Adjustable Cylinder MIJ8X50-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ8X50-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 | Fixed TPU bumper pads |
| Max standard stroke | Up to 150 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 (Ø8mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 25 N | 19 N |
| 0.7 MPa | 35 N | 26 N |
| Max (@1.0 MPa) | 5 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MIJ Adjustable Cylinder MIJ8X50-20S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 8 | 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 MIJ Adjustable Cylinder MIJ8X50-20S Is Used
Micro-Clamp Actuation
Provides 25.1 N of push force to secure delicate electronic components, using the 20 mm stroke adjuster to dial in the exact clamp depth without crushing parts.
Light-Diverter Gate
Employs the -S magnet with a DMSG sensor to confirm gate position, deflecting small lightweight packets on a conveyor with a safe 15 N working load.
Staged Parts Feeding
Trims the forward stroke on the fly to push varying small hardware sizes into a staging lane, using the fixed TPU bumpers to soften the stop impact.
Is the Airtac MIJ Adjustable Cylinder MIJ8X50-20S the Right Cylinder?
When sizing this series, step down from a Ø10 bore (39.3 N push @0.5 MPa) if your load is extremely light, or step up to a Ø12 bore (56.5 N push @0.5 MPa) if you need more authority. The 20 mm external stop screw is invaluable for taking up mechanical tolerances during setup or covering multiple stop positions with a single part number, trimming the extend stroke anywhere from 30 to 50 mm. Retract remains at the full 50 mm.
Keep in mind that the stop screw sets the end position but is not a mid-stroke lock; the piston will drift if air pressure is lost, so add an external rod lock or pilot check valve for holding suspended loads. For mounting, you can utilize LB foot, FA flange, or TC trunnion brackets, as well as CA, U, R, or CM back covers, but 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 MIJ Adjustable Cylinder MIJ8X50-20S FAQ
This double-acting cylinder features an M5x0.8 port and delivers 25.1 N push / 18.8 N pull at 0.5 MPa, 35.2 N push / 26.4 N pull at 0.7 MPa, and a theoretical maximum of 5.1 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site (usable range 30-50 mm) without affecting the full retract stroke. The included -S magnet enables CMSG, DMSG, and EMSG sensors for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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