Airtac MICJ Adjustable Mini Cylinder MICJ40X225-40S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X225-40S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke225 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 MICJ40X225-40S
Dial in a precise forward stop on-site with the AirTAC MICJ40X225-40S, a round-body stainless-steel mini cylinder built for heavy-duty pneumatics. An external stop screw shortens the extend end position by up to 40 mm, giving you a usable forward range of 185 to 225 mm without swapping hardware. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the exact end position while controlling impact. The stainless barrel and piston rod resist mild corrosion and washdown environments. Because this is a -S SKU, it includes a built-in piston magnet for CMSG, DMSG, or EMSG position switches. Note that Ø40 is a non-ISO-6432 size. The stop screw and air cushion only decelerate near the stroke end; they do not lock the piston mid-stroke or hold a load on air loss.
Airtac MICJ Adjustable Mini Cylinder MICJ40X225-40S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X225-40S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 MICJ40X225-40S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MICJ40X225-40S Is Used
Heavy Part Ejection
Push heavy machined parts out of a CNC enclosure at high speed, using the 40 mm stop adjustment to dial the exact ejection point and the dual air cushions to absorb the 628.3 N impact.
Pallet Positioning Stop
Halt 32 kg pallets on a washdown conveyor line; the stainless construction handles splashing, while the adjustable forward stop fine-tunes the pallet rest position without moving brackets.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X225-40S the Right Cylinder?
If you need less force, drop down; there is no larger standard MICJ bore above 40 mm. This model is ideal for fast set-position moves where the 40 mm extend adjustment window prevents hard crashes. Remember that a plain cylinder drifts on air loss, so add an external rod lock or pilot check valve if you need to hold a suspended load. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot block is not available on this adjustable variant. Pair it with CMSG, DMSG, or EMSG sensors using the integrated magnet.
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 MICJ40X225-40S FAQ
This 40 mm bore cylinder uses a 1/4" port and a 16 mm 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, letting you set the forward end position on-site. Needle valves adjust the air cushions at both ends to decelerate the piston before impact. The cylinder does not hold position on air loss; use an external rod lock for that. The -S suffix means it has a 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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