Airtac MIJ Adjustable Cylinder MIJ8X50-50S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ8X50-50S 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 MIJ8X50-50S
Dial in a precise forward end position on-site with the AirTAC MIJ8X50-50S, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw trims the extend stroke by up to 50 mm, letting you cover multiple stop distances with a single part number while the retract stroke remains full. The Ø8 mm bore generates 25.1 N of push force at 0.5 MPa, yielding a safe working load of roughly 15 N or a 1.3 kg vertical lift with a 2:1 margin.
This riveted construction unit features a stainless barrel and rod for mild washdown resistance, conforming to the ISO 6432 mounting interface for standard mini brackets. It uses an M5x0.8 air port and a Ø4 mm rod with an M4x0.7 male thread. The -S suffix equips the piston with a magnet for CMSG, DMSG or EMSG sensors, while fixed TPU bumper pads absorb the stroke end impacts across its 30-800 mm/s speed range.
Airtac MIJ Adjustable Cylinder MIJ8X50-50S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ8X50-50S |
|---|---|
| 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 MIJ8X50-50S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 8 | Bore size in mm. |
| ×50 | 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 MIJ Adjustable Cylinder MIJ8X50-50S Is Used
Micro-Positioning Stops
Use the 50 mm extend adjustment to fine-tune the stopping point of delicate 15 N pick-and-place probes, absorbing setup tolerances without machining new hard stops.
Light-Part Ejection
Deploy the 25.1 N push force to eject lightweight plastic components from a mold cavity, dialing the forward travel to match varying part depths on the fly.
Lab Dispense Valving
Leverage the stainless build and integrated -S magnet for sensor confirmation to actuate low-force fluid dispense valves where exact tip positioning is required.
Is the Airtac MIJ Adjustable Cylinder MIJ8X50-50S the Right Cylinder?
When sizing this 8 mm bore option, note there is no smaller MIJ diameter available; if you need more force, stepping up to the Ø16 bore provides 100.5 N of push at 0.5 MPa. The 50 mm adjustment window is ideal for taking up mechanical tolerances during setup or staging feeds without swapping hardware. Remember that the stop screw only sets the extend end position—it is not a mid-stroke lock, and the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange or TC trunnion, as the SDB pivot block is excluded 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 MIJ8X50-50S FAQ
At 0.5 MPa it provides 25.1 N push and 18.8 N pull; at 0.7 MPa it provides 35.2 N push and 26.4 N pull, with a theoretical max of 5.1 kgf at 1.0 MPa. The air port is M5x0.8.
The external stop screw shortens the extend stroke by up to 50 mm on-site without affecting the full retract stroke. The -S suffix denotes a built-in piston magnet for CMSG, DMSG or EMSG sensors; a SKU without S cannot take a sensor.
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