Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 225mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 205–225mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke225 mm
- Adjustable205–225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20
The AirTAC MBLCJ25X225-20 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 245 N push and 206 N pull force at 0.5 MPa through a 25 mm bore. The rear stopper lets you trim up to 20 mm of travel, creating a usable 205 to 225 mm stroke window for precise end-positioning.
Twin screw-tunable cushions decelerate the rod near each end-cap, absorbing kinetic energy to protect the end covers and allow faster cycle speeds than a fixed rubber bumper. The riveted rolling-packed barrel and 20 µm hard-chrome plated carbon-steel rod provide durable service. This specific SKU lacks a built-in magnet, so it cannot accept a CMSG, DMSG, or EMSG position sensor. Thread form is PT.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 225 mm |
| Adjustable window | 205–225 mm (trim 20 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 MBLCJ25X225-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×225 | Nominal stroke length in mm. |
| -20 | 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 MBLCJ25X225-20 Is Used
PCB Shuttle Conveyance
Drives a 225 mm shuttle stroke in PCB handling equipment, using the 20 mm rear trim to set exact board handoff positions and the air cushion to halt the 245 N push smoothly.
Textile Yarn Guides
Positions yarn guides in textile machinery, relying on the adjustable cushion to prevent sudden jerks at the end of a long stroke, protecting delicate fibers from snapping.
Small Parts Ejection
Ejects molded plastic parts from a press, using the 205-225 mm travel window to accommodate varying mold depths without repositioning the entire cylinder assembly.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-20 the Right Cylinder?
Stepping down, the 20 mm bore variant yields 157 N push at 0.5 MPa for lighter duties, while stepping up to the 32 mm bore provides 402 N for heavier loads. Choose the MBLCJ over the MBLJ when your cycle speed requires tunable end-of-stroke deceleration rather than a fixed bumper, or pick the MBLC if you need a fixed standard stroke without the rear adjuster. Remember that the rear adjuster is a travel stop, not a lock; it will not hold a load statically. Mounting is limited to Basic, FA, or LB styles as there is no SDB or back-cover option. For a direct replacement, match the 25 mm bore, 225 mm stroke, 20 mm adjust code, G1/8 port, PT thread, and no magnet. At 225 mm, the 10 mm rod is susceptible to side-load bending, so use an external guide.
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 MBLCJ25X225-20 FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N push and 206 N pull force. At 0.7 MPa, the push force is 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
No, this specific SKU lacks the built-in -S magnet, meaning it cannot accept CMSG reed or DMSG/EMSG electronic sensors. You would need the MBLCJ25X225-20S variant for position feedback capabilities.
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