Airtac MICJ Adjustable Mini Cylinder MICJ40X100-40
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-40 is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke100 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 MICJ40X100-40
Dial in a precise forward stop on-site with the AirTAC MICJ40X100-40, a round-body stainless steel mini cylinder that shortens the extend stroke by up to 40 mm via an external screw. The usable extend range becomes 60-100 mm out of the 100 mm nominal stroke, while the retract remains full. Because it is a double-acting actuator with an adjustable air cushion at both ends, you set the end position and tune the needle to soak up high-speed shock.
The 40 mm bore delivers substantial power, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa. Built with a stainless barrel and rod for mild washdown resistance, it features a 1/4" port and an M12x1.25 male rod thread. Note this is a non-ISO-6432 size and, lacking the -S magnet option, this SKU cannot accept position sensors.
Airtac MICJ Adjustable Mini Cylinder MICJ40X100-40 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-40 |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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 MICJ40X100-40
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MICJ40X100-40 Is Used
Heavy Carton Diversion
Pushes heavy cartons at high speed on a packaging line, using the 40 mm extend adjustment to dial in the exact push distance while the dual air cushions absorb the impact at stroke end.
Press Tool Ejection
Ejects dense metal parts from a press, relying on the stainless build for mild corrosion resistance and the adjustable cushion to soften the retraction stop during rapid cycling.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X100-40 the Right Cylinder?
When sizing this 40 mm bore, compare it directly to the adjacent MICJ options. Stepping down to the 32 mm bore drops your 0.5 MPa push force to 402.2 N, while there is no larger standard MICJ bore available above 40 mm. Choose this 100 mm stroke model when you need the 40 mm extend adjustability to fine-tune a set-position move without swapping hardware, paired with the dual air cushions to decelerate heavy fast loads.
Remember that the stop screw only sets the extend end position and the cushion only decelerates near the stroke end; neither acts as a mid-stroke lock or brake. If the application must hold a load on air loss, add an external rod lock or pilot-operated check valve. For mounting, use LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers, as the SDB pivot block is not offered on 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 MICJ40X100-40 FAQ
This 40 mm bore cylinder uses a 1/4" port and an M12x1.25 male rod thread. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push increases to 879.6 N and the pull to 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 40 mm, giving a usable forward range of 60-100 mm, while the retract stroke remains full. Needle valves adjust the air cushion at both ends to decelerate the piston before impact. The cylinder does not hold position on air loss and the screw is not a mid-stroke lock; use an external rod lock for holding. This SKU lacks a magnet, so it cannot take sensors unless you specify the -S variant.
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 MICJ40X100-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.