Airtac MICJ Adjustable Mini Cylinder MICJ40X250-100
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X250-100 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 MICJ40X250-100
Trimming the forward end by up to 100 mm on site, this round-body stainless mini cylinder lets you set a precise 150 to 250 mm extend position without swapping hardware.
Built with a stainless-steel barrel and rod for mild washdown resistance, the 40 mm bore uses a 1/4 inch port and an M12x1.25 male rod thread. Note this SKU lacks a magnet, so it cannot host CMSG, DMSG or EMSG sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X250-100 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X250-100 |
|---|---|
| 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 MICJ40X250-100
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -100 | 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 MICJ40X250-100 Is Used
Pallet Diverter
Dial in the 150-250 mm extend stroke to push heavy pallets onto a side lane, relying on the dual air cushions to absorb shock during fast 628.3 N actuation.
Case Flap Tucking
Set a precise forward stop to tuck heavy cardboard flaps on large cartons, using the 100 mm on-site adjustment to fine-tune the tooling position without changing cylinders.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X250-100 the Right Cylinder?
Choose this size when you need robust impact absorption alongside a dial-in forward stop for fast, repetitive positioning.
Remember that the external screw only sets the extend endpoint and the air cushion solely decelerates near the stroke end; neither acts as a mid-stroke lock. If gravity or air loss might cause drift, add an external rod lock or pilot check valve. Mount via LB foot, FA flange or TC trunnion, as the SDB pivot block is not offered for this adjustable variant.
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 MICJ40X250-100 FAQ
This 40 mm bore double-acting cylinder uses a 1/4 inch port. At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 100 mm on site, while a needle valve adjusts the air cushion at both ends to decelerate high-speed impacts. This specific SKU has no magnet, so it cannot support CMSG, DMSG or EMSG sensors; you would need the -S variant for sensing.
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.
Related AirTAC MICJ Cylinders
Request a Quote for Airtac MICJ Adjustable Mini Cylinder MICJ40X250-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.