Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X300-100S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 300mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke300 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 MICJ40X300-100S
Dial in the forward stop on-site without swapping hardware: the MICJ40X300-100S uses an external screw to trim the extend end by up to 100 mm, giving a usable 200-300 mm forward reach while retract stays full. A needle-set variable air cushion at both ends soaks up high-speed shock so you set the position and control the impact.
The stainless barrel and rod resist mild washdown corrosion. The -S magnet enables CMSG, DMSG and EMSG switches, and the 1/4" port feeds the 16 mm rod.
Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MICJ40X300-100S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X300-100S the Right Cylinder?
At 40 mm bore this is the largest in the line; there is no larger MICJ. If you need less force, the 32 mm bore pushes 402.2 N at 0.5 MPa.
The stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so fit an external rod lock or pilot check valve to hold a suspended load. Mount via LB foot, FA flange or TC trunnion (SDB pivot-block is not offered on this adjustable variant). The built-in -S magnet supports CMSG, DMSG and EMSG sensors.
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 MICJ40X300-100S FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod. It pushes with 628.3 N and pulls with 527.8 N at 0.5 MPa. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical max force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 100 mm (retract remains full). Needle valves adjust the air cushion at both ends to decelerate the piston near stroke ends. The -S magnet enables position sensing. The cushion only decelerates and the stop sets the end position; neither acts as a mid-stroke lock, so the piston drifts on air loss.
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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