Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 150mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 110–150mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke150 mm
- Adjustable110–150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40
The AirTAC MBLCJ25X150-40 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 245 N of push force at 0.5 MPa. The rear stopper allows you to trim up to 40 mm of travel, creating a usable stroke window of 110 to 150 mm. This specific reach is well-suited for intermediate robotic arm extensions or shifting a part between processing stations.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable end-of-stroke deceleration to absorb kinetic energy and protect the end covers during faster cycles. The Ø10 mm carbon-steel rod features 20 µm hard-chrome plating to resist scoring, while the riveted barrel ensures structural rigidity. Note that this specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 110–150 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 MBLCJ25X150-40
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×150 | 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 MBLCJ25X150-40 Is Used
PCB Shuttle Transfer
Moves populated circuit boards between inspection stages, using the 110-150 mm adjustable window to dial in the exact handoff distance while the air cushions halt the 245 N stroke smoothly.
Label Applicator Plunge
Actuates a wipe-down label head on a packaging line, relying on the tunable cushions to prevent label drift at cycle speeds up to 800 mm/s.
Small Parts Sorter Gate
Diverts plastic components on a conveyor, where the compact riveted aluminum body fits tight machine guards and the 150 mm reach clears adjacent tooling.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-40 the Right Cylinder?
Choose this Ø25 bore when you need 245 N push at 0.5 MPa but want to avoid the bulk of the Ø32 bore (which outputs 402 N). If your application is lighter, stepping down to the Ø20 bore yields 157 N of push force. Select the MBLCJ over the MBLJ when your moving mass requires tuned pneumatic deceleration rather than a simple fixed bumper, or over the MBLC when you need to fine-tune the end position within that 110-150 mm window.
Remember that the rear mechanism is a travel stop, not a mechanical lock; it sets the end point but will not hold a load under force, and the cushion only decelerates. Mounting is restricted to Basic, FA flange, or LB foot styles, as there is no back-cover or SDB pivot option for this series. To replace this unit, match the 25 mm bore, 150 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and confirm no magnet is required. At 150 mm of travel, the small 10 mm rod is susceptible to side-loading, so an external guide rail is recommended to prevent premature seal wear.
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 MBLCJ25X150-40 FAQ
At 0.5 MPa it provides 245 N push and 206 N pull. At 0.7 MPa the push force is 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa. The cylinder operates safely between 0.15 and 1.0 MPa.
This specific SKU does not have a built-in magnet, so CMSG, DMSG, or EMSG electronic switches cannot be used. The 40 mm rear adjuster is a mechanical travel stop that sets your usable stroke window between 110 and 150 mm. The adjustable air cushion is separate; it uses a screw to tune end-of-stroke deceleration, but neither feature locks or holds the load in place.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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