Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-30S 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 MICJ40X100-30S
Dial in a precise 70 to 100 mm forward stop on site with the AirTAC MICJ40X100-30S, a stainless-steel round-body mini cylinder that shortens the extend stroke by up to 30 mm via an external screw. The built-in needle-adjustable air cushions at both ends soak up high-speed shock, letting you set the exact end position while controlling impact. A trailing -S in the code means this unit includes a piston magnet for CMSG, DMSG or EMSG sensors.
The stainless barrel and rod resist mild corrosion and washdown environments.
Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30S |
|---|---|
| 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 MICJ40X100-30S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MICJ40X100-30S Is Used
Heavy Carton Diversion
Pushes heavy cartons at high speed on a packaging line, using the 30 mm extend trim to dial in the exact push distance while the dual air cushions absorb the shock.
Pallet Stop Gate
Acts as a robust stop gate for heavy pallets, where the stainless construction handles mild washdown and the adjustable forward stop fine-tunes the blocking position.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30S the Right Cylinder?
This 40 mm bore provides the highest thrust in the MICJ family, pushing 628.3 N at 0.5 MPa. If your application needs less force, stepping down to the 32 mm bore drops the push force to 402.2 N; there is no larger standard bore available. The adjustable forward stop and dual air cushions shine in fast set-position moves where you must tune the impact without swapping hardware.
Remember that the stop screw sets the end position but does not lock the rod mid-stroke, and the air cushion only decelerates near the end of travel. If you need to hold a load vertically on air loss, add an external rod lock or pilot check valve. For mounting, choose LB foot, FA flange or TC trunnion (SDB is not offered), and use the -S magnet to fit your reed or electronic switches.
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 MICJ40X100-30S FAQ
The theoretical maximum force is 128.1 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm, while needle valves adjust the air cushion at both ends to decelerate the piston before impact. The cushion only slows the rod near the end of travel; it does not lock or hold the load on air loss, so you need an external rod lock for vertical holding. 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.
Related AirTAC MICJ Cylinders
Request a Quote for Airtac MICJ Adjustable Mini Cylinder MICJ40X100-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.