
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X100-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 100mm 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.
Dial in a precise forward end position on-site with the AirTAC MIJ20X100-20S, a double-acting round-body mini cylinder featuring a 20 mm extend-stroke adjustment window. An external stop screw lets you shorten the forward travel from its 100 mm nominal length down to 80 mm, absorbing setup tolerances without swapping hardware. The retract stroke remains full length. Built with a stainless-steel barrel and piston rod, this riveted construction handles mild washdown environments better than standard carbon steel units.
Delivering 157 N of push force and 131.9 N of pull force at 0.5 MPa, the Ø20 bore provides a computed safe working load of roughly 94 N, or about 8 kg of vertical lift with a 2:1 safety margin. It uses an ISO 6432 mounting interface for standard mini brackets and features a 1/8" port with an M8x1.25 male rod thread. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position sensing.
| Model | Airtac MIJ Adjustable Cylinder MIJ20X100-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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.
| 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.
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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.
Trim the extend stroke by up to 20 mm on-site to match varying box widths on a packaging line without changing the cylinder mount, using the 157 N push force to redirect light cartons.
Dial in the exact forward stop for delicate plastic components, leveraging the 8 kg safe vertical lift capacity to present parts to an assembly station without over-traveling.
Use the external screw to quickly set intermediate end positions for different machining fixtures, relying on the stainless build to resist coolant splash and mild corrosion.
When sizing this unit, consider the neighboring bores: a Ø16 MIJ yields 100.5 N push at 0.5 MPa, while a Ø25 steps up to 245.3 N. The Ø20 hits a sweet spot at 157 N. The 20 mm adjuster is ideal for changeover jobs where you need one part number to cover several staged stops. If your application requires the load to hold position during air loss, note that this cylinder will drift; you must add an external rod lock or pilot check valve, as the stop screw only trims the extend end and is not a mid-stroke brake.
Mounting options include LB foot, FA flange, and TC trunnion styles, plus CA, U, R, or CM back covers (SDB pivot blocks are not available on this adjustable variant). Speeds run 30-800 mm/s, decelerated at the ends by fixed TPU bumper pads rather than an adjustable air cushion.
Quick checklist
At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum 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 20 mm (usable forward travel 80-100 mm), but the retract stroke remains full length. The -S suffix means a piston magnet is built-in for CMSG, DMSG, or EMSG sensors. It uses fixed TPU bumper pads, not an adjustable air cushion.
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