Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X450-20S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke450 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MICJ40X450-20S
Dial in a precise forward stop on-site with the AirTAC MICJ40X450-20S, a double-acting round-body stainless mini cylinder featuring a 20 mm adjustable extend stroke. An external screw trims the extend end position down to 430 mm without swapping hardware, while a needle-set variable air cushion at both ends soaks up high-speed shock. The stainless barrel and rod resist mild corrosion and washdown environments.
This Ø40 mm non-ISO-6432 unit delivers serious force, pushing 628.3 N and pulling 527.8 N at 0.5 MPa. Equipped with a built-in magnet (-S), it supports CMSG, DMSG, and EMSG sensors, and uses a 1/4" port with an M12x1.25 male rod thread.
Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
MIJ / MICJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 (double rod, adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S Is Used
Pallet Stopper Gate
Acts as a robust pneumatic stop gate for heavy pallets, tuning the extend position on-site to match pallet depth while the stainless construction handles dusty environments.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-20S the Right Cylinder?
When sizing this 40 mm bore, moving down to a Ø32 mm MICJ drops the 0.5 MPa push force to 402.2 N, while no larger bore exists in the MICJ family. This model is ideal for fast, settable-position moves where the 20 mm extend adjuster lets you fine-tune the forward stop and the dual air cushions decelerate the load smoothly. Note that the cushion only decelerates near the stroke end and is not a mid-stroke lock.
For mounting, choose LB foot, FA flange, or TC trunnion options, plus CA, U, R, or CM back covers (SDB pivot-block is not available on this adjustable variant). Because it lacks a physical lock, the piston will drift on air loss or when valves are centered; use an external rod lock or pilot-operated check valve if you need to hold a suspended load.
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 MICJ40X450-20S FAQ
At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. It features a 1/4" air port and a 16 mm piston rod.
An external stop screw shortens the extend stroke by up to 20 mm on-site, letting you set the exact forward end position. A needle-set variable air cushion at both ends decelerates the piston to absorb high-speed shock. The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG sensors.
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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