Airtac MICJ Adjustable Mini Cylinder MICJ20X250-50
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X250-50 is a genuine double acting, adjustable stroke + cushion 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.
- BoreØ20 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- 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 MICJ Adjustable Mini Cylinder MICJ20X250-50
Dial in a precise forward stop on-site with the AirTAC MICJ20X250-50, a stainless-steel round-body mini cylinder that shortens the extend end position by up to 50 mm via an external screw. The usable extend range becomes 200-250 mm, while retract remains a full 250 mm. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
Built with a stainless barrel and rod for mild washdown resistance, this double-acting ISO 6432 unit delivers 157 N of push force at 0.5 MPa. It yields a safe working load of about 94 N, easily moving roughly 8 kg vertically with a 2:1 margin. It uses a 1/8" port and an M8x1.25 male rod thread. Note that this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors without upgrading to the -S variant.
Airtac MICJ Adjustable Mini Cylinder MICJ20X250-50 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X250-50 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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.
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 MICJ Adjustable Mini Cylinder MICJ20X250-50
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MICJ Adjustable Mini Cylinder MICJ20X250-50 Is Used
Sorter Diverter Stroke Tuning
Trim the 250 mm extend stroke by up to 50 mm to perfectly position a package diverter arm without machining new spacers, using the dual air cushions to absorb the impact of rapid routing shifts.
Variable Depth Carton Sealing
Adjust the forward stop on the fly to match different carton depths, relying on the 157 N push force to firmly press flaps while the end cushion prevents bounce at high cycling speeds.
Light Part Ejection
Eject 8 kg machined components safely from a workstation, dialing the extend endpoint precisely to a dead-zone while the needle cushion decelerates the rod before the external stop hits.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X250-50 the Right Cylinder?
When sizing this 20 mm bore, step down to an MICJ16 for lighter duty (100.5 N push @0.5 MPa) or up to an MICJ25 for heavier loads (245.3 N push @0.5 MPa). The 50 mm extend stop adjustment is ideal for fast set-position moves where you need to tune the forward endpoint without swapping hardware. Mount using standard LB foot, FA flange, or TC trunnion brackets; the SDB pivot block is not offered on this adjustable variant.
Remember that the external stop screw sets the end position but acts as neither a mid-stroke lock nor a brake. If air pressure drops, the piston will drift, and the air cushion only decelerates the load near the stroke end. To hold a suspended load securely, integrate an external rod lock or a pilot-operated check valve into your circuit.
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 MICJ Adjustable Mini Cylinder MICJ20X250-50 FAQ
This 20 mm bore cylinder uses a 1/8" port and an M8x1.25 male rod thread. At 0.5 MPa it provides 157 N push and 131.9 N pull. At 0.7 MPa it yields 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 50 mm, giving a usable forward range of 200-250 mm, while retract stays at the full 250 mm. Needle valves control an adjustable air cushion at both ends to decelerate high-speed moves. Because this SKU lacks a magnet, it cannot accept position sensors; choose the -S variant for CMSG, DMSG, or EMSG switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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