Airtac MICJ Adjustable Mini Cylinder MICJ40X450-40
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X450-40 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 MICJ40X450-40
Dial in a precise forward stop on site with the AirTAC MICJ40X450-40, a stainless-steel round-body mini cylinder built for double-acting service. An external stop screw trims the extend end position by up to 40 mm, giving you a usable forward range of 410 to 450 mm without swapping hardware. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously.
The 40 mm bore delivers substantial thrust, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa. The stainless barrel and rod resist mild corrosion and washdown, and the 1/4" port handles the air volume needed for this larger non-ISO bore. Note this SKU lacks a magnet, so it cannot take position sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X450-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X450-40 |
|---|---|
| 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 MICJ40X450-40
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -40 | 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 MICJ40X450-40 Is Used
Heavy Clamping Press
Generate 628.3 N of clamping force at 0.5 MPa and fine-tune the 450 mm extend stop by 40 mm to accommodate varying part heights without changing tooling.
High-Speed Divertor
Use the adjustable air cushions to absorb shock during rapid 450 mm diversion strokes, safely moving items weighing up to 32 kg down the line.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X450-40 the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm MICJ drops the 0.5 MPa push force to 402.2 N, while no larger bore exists in the MICJ family. The 40 mm extend adjuster and dual air cushions are ideal for fast, repetitive set-position moves where you need to tune out mechanical shock at the end of travel. Use LB foot, FA flange, or TC trunnion mounts, as the SDB pivot block is not offered on adjustable-stroke variants.
Remember that the stop screw sets the end position but does not function as a mid-stroke lock. The cylinder will drift and the piston will not hold its load on air loss, as the cushions only decelerate near the stroke end. For suspended or vertical loads, install an external rod lock or pilot-operated check valve. Because this specific SKU has no -S magnet, it cannot accept CMSG, DMSG, or EMSG sensors.
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 MICJ40X450-40 FAQ
This 40 mm bore cylinder features a 1/4" air port and a 16 mm piston rod. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 40 mm on site, giving a usable forward range of 410 to 450 mm. Needle valves adjust the air cushion at both ends to decelerate the piston at high speed. This SKU lacks a magnet, so it cannot take sensors; the -S variant is required 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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