Airtac MIJ Adjustable Cylinder MIJ20X70-20S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X70-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 70mm 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
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- 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 MIJ Adjustable Cylinder MIJ20X70-20S
Dial in a precise forward end position on-site with the AirTAC MIJ20X70-20S, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw trims the extend stroke by up to 20 mm, letting you cover multiple forward stops between 50 and 70 mm from a single unit without changing hardware. Retract remains at the full 70 mm.
The Ø20 mm bore generates 157 N of push force and 131.9 N of pull at 0.5 MPa, yielding a safe working load around 94 N or a vertical lift capacity of roughly 8 kg with a 2:1 margin. The stainless barrel and rod resist mild corrosion and washdown environments. Conforming to the ISO 6432 mounting interface, this unit drops into standard mini brackets and features a 1/8" port, an M8x1.25 male rod thread, and a built-in magnet for position sensing.
Airtac MIJ Adjustable Cylinder MIJ20X70-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X70-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 70 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 MIJ Adjustable Cylinder MIJ20X70-20S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×70 | 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 MIJ20X70-20S Is Used
Tolerance Take-Up in Clamping
Compensate for material thickness variance by trimming the extend stroke up to 20 mm on-site, delivering a consistent 157 N clamping force without re-engineering the fixture.
Adjustable Transfer Stops
Set precise diverting endpoints for mixed-product conveyor lines, using the stop screw to change the forward position on the fly for different carton sizes.
Vertical Lift Stops
Elevate light components up to 8 kg, using the external adjuster to set exact lift heights for tiered shelving without needing multiple specialized cylinders.
Is the Airtac MIJ Adjustable Cylinder MIJ20X70-20S the Right Cylinder?
When sizing this actuator, step down to the Ø16 bore if your application requires less force (140.7 N push at 0.7 MPa) or step up to the Ø25 bore for heavier payloads (343.4 N push at 0.7 MPa). The 20 mm adjustment window is ideal for taking up mechanical tolerances during setup or staging feeds across changeover jobs. Remember that the stop screw only sets the forward end position; it is not a mid-stroke lock. The piston will drift on air loss, so specify an external rod lock or pilot check valve for suspended loads.
This SKU includes the -S magnet, enabling direct mounting of CMSG, DMSG, or EMSG reed and electronic sensors for end-of-stroke confirmation. You can utilize LB foot, FA flange, or TC trunnion mounts, plus CA, U, R, or CM back covers, but note that 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 MIJ20X70-20S FAQ
At 0.5 MPa this double-acting cylinder provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. The air port is 1/8" and the male rod thread is M8x1.25.
An external stop screw shortens the extend stroke by up to 20 mm, allowing you to set the forward end position between 50 and 70 mm; the retract stroke remains full. The included -S magnet allows CMSG, DMSG, and EMSG sensors to detect the piston. Fixed TPU bumper pads decelerate the stroke ends.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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