
The AirTAC MICJ Adjustable Mini Cylinder MICJ40X100-50S 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.
Dial in the forward stop on-site without swapping cylinders: the MICJ40X100-50S uses an external screw to shorten the extend stroke by up to 50 mm, giving a usable forward range of 50-100 mm while retract remains full. The stainless-steel round-body barrel and Ø16 mm rod shrug off mild washdown corrosion, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG sensors for position detection.
Needle-set adjustable air cushions at both ends soak up high-speed shock (30-800 mm/s) to protect your tooling. The 1/4" port feeds the bore efficiently, and the stop screw sets the end position but is not a mid-stroke lock.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ40X100-50S |
|---|---|
| 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.
| 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).
| MICJ | round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -50 | 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.
Shifts heavy packages on a sorting line, using the 50 mm extend adjustment to fine-tune the gate angle without moving brackets, while the air cushion absorbs the 628.3 N impact at high speed.
Drives a pin into a housing with 377 N of safe working force, relying on the adjustable forward stop to set precise insertion depth and the -S magnet to confirm stroke completion.
Folds heavy cardboard flaps on oversized cartons, dialing the extend stroke back 50 mm to clear varying box heights while the stainless construction resists damp environments.
Choose this model when you need high force combined with on-site extend tuning and high-speed cushioning.
The adjustable stop and dual air cushions excel in fast, settable-position moves, but note that a plain cylinder drifts on air loss—the cushion only decelerates near the end and does not act as a brake. For load holding, add an external rod lock or pilot check valve. Mount using LB foot, FA flange, or TC trunnion (SDB pivot-block is not offered on this variant), and leverage the -S magnet for electronic or reed switches.
Quick checklist
This Ø40 mm cylinder has a 1/4" port and M12x1.25 male rod thread.
An external screw shortens the extend stroke by up to 50 mm (retract is unaffected), while needle-set air cushions at both ends decelerate the piston near stroke ends. The -S magnet enables position sensing. The cylinder does not hold position on air loss; use an external rod lock for that.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.