
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X100-50 is a genuine double acting, adjustable stroke + cushion 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.
Trim the forward stop by up to 50 mm on site without swapping hardware: this AirTAC round-body mini cylinder pairs an adjustable extend stroke with needle-set air cushions at both ends to soak up high-speed shock. The stainless-steel barrel and rod shrug off mild washdown, while the Ø20 mm bore conforms to the ISO 6432 mounting interface for standard mini brackets. Driven by a 1/8" port and an M8x1.25 male rod thread, it delivers 157 N of push force at 0.5 MPa.
With a nominal 100 mm stroke that dials down to a 50 mm extend, the double-acting piston handles rapid positioning across a 30-800 mm/s speed range. For practical sizing, expect a safe working load around 94 N, which translates to lifting roughly 8 kg vertically with a 2:1 safety margin. Note this specific SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors without switching to the -S variant.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X100-50 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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.
Use the 50 mm extend trim to set exact clamping depth on machined parts, relying on the 157 N push force to secure workpieces while the air cushion softens the impact.
Route packages of varying sizes on a line by adjusting the forward stop on the fly, using the stainless construction to endure humid or washdown environments.
Extend the 100 mm stroke to fold flaps at high speed while tuning the needle cushion to prevent jarring stops, safely moving loads around 8 kg vertically.
When sizing this 157 N push unit, stepping down to a Ø16 bore drops the 0.5 MPa push force to 100.5 N, whereas moving up to a Ø25 bore raises it to 245.3 N. The 50 mm extend adjuster is ideal when you need to dial in a precise forward end position on the fly, and the adjustable cushion tames the impact of fast moves. Mount using LB foot, FA flange or TC trunnion brackets, or CA, U, R and CM back covers, but note the SDB pivot block is not offered on this adjustable variant.
Keep in mind the stop screw sets the end position but acts purely as a mechanical stop, not a mid-stroke lock. The cylinder will drift and drop its load on air loss because the air cushion only decelerates near the stroke end. If your application requires holding a suspended load during a pressure drop, install an external rod lock or pilot-operated check valve.
Quick checklist
This Ø20 mm bore cylinder uses a 1/8" air port and an M8x1.25 male 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 force of 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 50 mm (usable range 50-100 mm), while needle valves adjust the air cushions at both ends to decelerate the piston before impact. This SKU has no magnet and cannot accept CMSG/DMSG/EMSG sensors; choose the -S variant for position sensing.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.