Airtac MICJ Adjustable Mini Cylinder MICJ40X225-30S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X225-30S 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 MICJ40X225-30S
Tune the forward stop on site without swapping hardware using the AirTAC MICJ40X225-30S. This round-body stainless steel mini cylinder shortens the extend stroke by up to 30 mm via an external screw, yielding a usable forward range of 195-225 mm, while a needle-set air cushion at both ends absorbs high-speed shock.
The stainless barrel and rod resist mild corrosion and washdown environments. Because this is a 40 mm bore, it is a non-ISO-6432 size, yet it delivers substantial power with a theoretical maximum of 128.1 kgf. The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches.
Airtac MICJ Adjustable Mini Cylinder MICJ40X225-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X225-30S |
|---|---|
| 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 MICJ40X225-30S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -30 | 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 MICJ40X225-30S Is Used
Heavy Carton Diversion
Pushing heavy cartons at 800 mm/s on a packaging line, using the 30 mm extend adjustment to set the exact push-off distance while the dual air cushions absorb the high-speed impact.
Vertical Pallet Lift
Raising 30 kg tote boxes vertically, safely operating within the 32 kg lift margin, and relying on the stainless construction to handle humid warehouse conditions.
Press Tool Positioning
Driving a light assembly press where the forward stroke must be fine-tuned between 195 and 225 mm for different product heights without changing the cylinder mount.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X225-30S the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm bore drops the 0.5 MPa push force to 402.2 N, whereas the 40 mm provides 628.3 N—ideal if you need that extra thrust margin. There is no larger standard MICJ bore available, making this the top force option in the series. The 30 mm extend adjuster and dual air cushions excel in fast set-position moves where you must dial in the exact forward stop and decelerate smoothly.
Mount using LB foot, FA flange, or TC trunnion brackets; the SDB pivot block is not offered on this adjustable variant. The -S magnet enables CMSG, DMSG, or EMSG sensors for end-of-stroke confirmation. Remember that the stop screw sets the end position but is not a mid-stroke lock, and the cylinder will drift on air loss—for a held load, install an external rod lock or pilot check valve.
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 MICJ40X225-30S FAQ
This double-acting cylinder uses a 1/4" air port and a 16 mm rod.
An external screw shortens the extend stroke by up to 30 mm on site, giving a usable forward range of 195-225 mm; retract remains full. Needle valves adjust the air cushions at both ends to decelerate the piston near stroke ends. 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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