
The AirTAC Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SCALB is a genuine double acting round-body mini air cylinder with a Ø20mm bore and 250mm 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.
Delivering 157 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles a 250 mm stroke with ease. The Ø20 mm bore uses a 1/8" port and an M8x1.25 male rod thread. Its riveted stainless barrel and rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Built-in fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
For practical sizing, plan for around 94 N of actual work at 0.5 MPa, which translates to lifting roughly 8 kg vertically with a safe 2:1 margin. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG or EMSG position switches. The CA rear pivot cover and included LB foot bracket supply flexible mounting options that conform to ISO 6432 mini-cylinder dimensions.
| Model | Airtac MI16-20 Stainless Steel Mini Cylinder MI20X250SCALB |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| 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.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -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.
Actuates a routing flap on a packaging line, using the 250 mm stroke to shift boxes between belts with reliable 157 N push force.
Stainless construction withstands daily wipe-downs in pharmaceutical labs, driving a 250 mm plunge to deposit vials into testing trays.
Ejects small components from sorting bins, relying on the LB foot mount to stay rigid while cycling 8 kg loads horizontally.
When sizing this unit, the smaller Ø16 bore provides 100.5 N of push at 0.5 MPa, while stepping up to the Ø25 bore yields 245.3 N, giving you clear boundaries if your load shifts. The 250 mm stroke is well within the 500 mm maximum for this bore, though at full extension you should watch for side-loading to avoid bending the Ø8 mm rod. The LB foot bracket secures the body, while the CA back cover allows pivoting. If your process requires the piston to stay put when air is removed or the valve is centred, note that this cylinder will drift; you must add an external rod lock or pilot check valve for holding.
Quick checklist
This Ø20 mm cylinder features a 1/8" port and an M8x1.25 rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
No, the fixed TPU bumper pads only decelerate the stroke end and do not act as a brake; the piston will drift if air is lost, so an external rod lock is needed to hold a load. It includes an LB foot bracket and a CA pivot cover, and the -S magnet allows CMSG, DMSG or EMSG sensors to track position.
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