Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 100mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 60–100mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke100 mm
- Adjustable60–100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S
The AirTAC MBLCJ25X100-40S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. With a 25mm bore, it delivers 245N push and 206N pull force at 0.5 MPa. The rear adjuster trims up to 40mm of travel, creating a usable 60 to 100mm stroke window for precise positioning. Unlike the fixed rubber bumper on the MBLJ, the screw-tunable air cushion here decelerates heavier loads at the stroke ends to protect the end covers.
This SKU includes a built-in magnet (-S) for position detection with CMSG reed or DMSG and EMSG solid-state switches. The riveted rolling-packed barrel and grease-retaining two-way piston seal contain lubrication, while the Ø10mm carbon-steel rod features 20µm hard-chrome plating for wear resistance. The rear stopper sets the travel end but does not hold the load; the cushion only decelerates. Mounting is limited to Basic, FA flange, or LB foot styles, as no SDB pivot or back-cover option exists.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 60–100 mm (trim 40 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -40 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S Is Used
Packaging Conveyor Diverter
At 245N push force, this cylinder reliably pushes small cardboard cartons onto a side lane at high speed, using the 60-100mm stroke window to fine-tune the diverter gate position precisely.
PCB Edge-Guide Clamping
The tunable air cushion ensures smooth, non-destructive clamping of delicate printed circuit boards during automated optical inspection, while the -S magnet confirms the clamp is engaged.
Textile Tensioning Arm
The 40mm rear stroke adjustment allows operators to dial in the exact travel of a fabric tensioning arm without machining new hard stops, optimizing web tension dynamically.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S the Right Cylinder?
If you need less force, step down to the 20mm bore (157N push at 0.5MPa), or step up to the 32mm bore (402N push) for higher thrust. Choose this MBLCJ over the MBLJ when your cycle speed requires tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC if you need to fine-tune the travel end. To match this exact replacement, specify 25mm bore, 100mm stroke, 40mm adjust code, G1/8 port, PT thread, Basic/FA/LB mounting, and the -S magnet. Neither the rear adjuster nor the air cushion acts as a lock; use an external locking device to hold position without live air.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X100-40S FAQ
At 0.5 MPa, the push force is 245N and the pull force is 206N. At 0.7 MPa, the push force is 343N. The maximum theoretical force is 50 kgf at 1.0 MPa, with an operating pressure range of 0.15 to 1.0 MPa.
The 40mm rear stroke adjustment is a mechanical travel stop that sets your usable stroke window between 60 and 100mm. The adjustable air cushion is a separate screw-tunable valve that controls end-of-stroke deceleration. Neither holds the load; the cushion only slows the rod, and the stopper sets the end position.
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Standard models usually ship in 3-4 days.
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