Airtac MICJ Adjustable Mini Cylinder MICJ40X350-75S
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X350-75S is a genuine double acting, double rod, adjustable stroke + cushion round-body mini air cylinder with a Ø40mm bore and 350mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke350 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 MICJ40X350-75S
Dial in a precise forward stop on-site with the AirTAC MICJ40X350-75S, a round-body stainless-steel mini cylinder that shortens the extend stroke by up to 75 mm via an external screw. The usable extend range becomes 275 to 350 mm, while retract remains full. A needle-set adjustable air cushion at both ends soaks up high-speed shock, letting you set the position and control the impact simultaneously. Built as a double-acting riveted unit with a 1/4" port and M12x1.25 male rod thread, it is designed for heavy mini-automation rather than ISO 6432 footprint matching.
The 40 mm bore delivers substantial power, pushing with 628.3 N and pulling with 527.8 N at 0.5 MPa. The stainless barrel and rod resist mild corrosion and washdown environments. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position switches.
Airtac MICJ Adjustable Mini Cylinder MICJ40X350-75S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X350-75S |
|---|---|
| Series | MICJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MICJ40X350-75S
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -75 | 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 MICJ40X350-75S Is Used
Heavy Carton Diversion
Pushes 30 kg cartons at high speed onto a secondary line, using the 75 mm extend trim to fine-tune the push distance and the dual cushions to absorb shock without slamming.
Pallet Stopper Gate
Acts as an adjustable physical stop for loaded pallets, trimming the extend position by up to 75 mm on-site to match pallet depth variations without swapping hardware.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ40X350-75S the Right Cylinder?
When sizing this 40 mm bore, stepping down to the MICJ32 drops the 0.5 MPa push force to 402.2 N, while no larger standard bore exists in this mini series. Choose the 40 mm bore when your load approaches 32 kg and you need the maximum 128.1 kgf theoretical ceiling at 1.0 MPa. The external stop screw and dual cushions are ideal for fast, repetitive set-position moves where you must tune out impact shock without changing the physical cylinder length.
Mount using LB foot, FA flange, or TC trunnion brackets, plus CA, U, R, or CM back covers, noting that the SDB pivot-block is not offered on this adjustable variant. Remember that the stop screw sets only the extend end position and the air cushions only decelerate near the stroke ends. This cylinder does not hold position on air loss, so add an external rod lock or pilot check valve if you need to suspend a load safely.
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 MICJ40X350-75S FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port. At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push is 879.6 N and pull is 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 75 mm, giving a usable forward range of 275-350 mm, while needle valves adjust the air cushions at both ends to decelerate high-speed impacts. The -S magnet enables CMSG/DMSG/EMSG sensors. The cushions and stop screw do not lock or hold the load on air loss; use an external rod lock for suspension.
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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