Airtac MICJ Adjustable Mini Cylinder MICJ40X250-10S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X250-10S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 250mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke250 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 MICJ40X250-10S
Dial in a precise 240-250 mm forward stop on site with the AirTAC MICJ40X250-10S, a round-body stainless mini cylinder built for heavy-duty pneumatics. An external screw shortens the extend stroke by up to 10 mm, while a needle-set variable air cushion at both ends soaks up high-speed shock. The retract stroke remains full, and the built-in magnet (-S) supports CMSG, DMSG, and EMSG sensors.
The stainless barrel and rod resist mild corrosion and washdown, and the M12x1.25 male rod thread handles robust mounting. Note that Ø40 is a non-ISO-6432 size, and the stop screw sets the end position rather than acting as a mid-stroke lock.
Airtac MICJ Adjustable Mini Cylinder MICJ40X250-10S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X250-10S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MICJ40X250-10S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -10 | 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 MICJ40X250-10S Is Used
Heavy Carton Diverter
Pushes 30 kg cartons off a high-speed packaging line, using the 10 mm extend stop to dial in the exact push distance without swapping cylinders.
Pallet Lift Gate
Raises light pallet gates up to 32 kg, relying on the dual air cushions to prevent end-of-stroke slamming during rapid 800 mm/s cycles.
Fill Head Positioning
Extends a liquid fill head into a washdown environment, where the stainless construction resists mild corrosion and the magnet enables end-position confirmation.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X250-10S the Right Cylinder?
Choose this model when you need fast, settable-position moves that require both an exact forward stop and shock absorption. The needle cushion decelerates the load near the stroke end but does not function as a brake.
Because a plain cylinder drifts on air loss, add an external rod lock or pilot check valve if you must hold a suspended load. Mount using LB foot, FA flange, or TC trunnion brackets (SDB is not offered on this variant), and wire up CMSG, DMSG, or EMSG switches directly thanks to the installed -S 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 MICJ40X250-10S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 10 mm (usable extend 240-250 mm), while the needle-set air cushion decelerates the piston at both ends. The cylinder does not hold position on air loss, so use an external rod lock for suspended loads. The -S magnet allows CMSG, DMSG, and 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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