Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-20 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 MICJ40X100-20
Trim the forward stop by up to 20 mm on site without swapping hardware using the AirTAC MICJ40X100-20. This double-acting round-body mini cylinder pairs that external extend adjuster with a needle-set variable air cushion at both ends to soak up high-speed shock.
Built with a stainless-steel barrel and piston rod, it resists mild corrosion and washdown environments. It features a 1/4" air port, an M12x1.25 male rod thread, and operates at speeds from 30 to 800 mm/s. Note this non-magnetic SKU cannot take a sensor; the -S variant is required for CMSG, DMSG or EMSG switches.
Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20 Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20 |
|---|---|
| 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 MICJ40X100-20
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -20 | 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 MICJ40X100-20 Is Used
High-Speed Diverting
Diverts dense cartons at high cycle speeds, relying on the adjustable air cushions to decelerate the 40 mm piston smoothly and prevent end-cap shock.
Carton Sealing Press
Applies 32 kg of vertical clamping force for carton sealing, using the external screw to fine-tune the downstroke position for varying package heights.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X100-20 the Right Cylinder?
The 20 mm extend adjuster is ideal for fast set-position moves where you need to dial in the exact 80-100 mm forward stop while the dual cushions control impact.
Mount using LB foot, FA flange or TC trunnion brackets (SDB pivot-block is not available on this adjustable variant). The stop screw sets the end position but is not a mid-stroke lock; this cylinder will drift on air loss. Use an external rod lock or pilot check valve for held loads.
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 MICJ40X100-20 FAQ
This 40 mm bore double-acting cylinder pushes 628.3 N and pulls 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. It uses a 1/4" air port and an M12x1.25 male rod thread.
An external screw shortens the extend stroke by up to 20 mm, letting you set the forward end position on site. Needle-set variable air cushions at both ends decelerate the piston near stroke end to absorb high-speed shock. The cylinder does not hold position on air loss and will drift; use an external rod lock for holding. This non-S SKU cannot take a sensor.
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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