Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S 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 50mm for a usable window of 175–225mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke225 mm
- Adjustable175–225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S
The AirTAC MBLCJ25X225-50S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The integrated -S magnet enables position detection with CMSG reed or DMSG/EMSG electronic switches. Driven by a Ø10mm hard-chrome plated carbon-steel rod, it delivers 245N of push force and 206N of pull force at 0.5 MPa. The 225mm stroke suits extended routing tasks in tight assembly zones.
This specific SKU allows you to trim up to 50mm of rear travel, creating a usable end-position window of 175-225mm. Unlike the standard MBLJ which relies on a fixed rubber bumper, the screw-tunable air cushion on this model lets you precisely manage deceleration for heavier or faster moving loads, protecting the end covers from impact. The riveted rolling-packed barrel and grease-retaining piston seal ensure consistent friction over long cycles.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 225 mm |
| Adjustable window | 175–225 mm (trim 50 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 MBLCJ25X225-50S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×225 | Nominal stroke length in mm. |
| -50 | 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 MBLCJ25X225-50S Is Used
PCB Conveyor Routing
Drives 225mm routing gates on electronics assembly lines, using the 175-225mm adjustable window to sync board handoff distances while the cushion absorbs the rapid 245N return impact.
Textile Beam Indexing
Positions heavy fabric beams across weaving looms; the tunable air cushion prevents the 10mm rod from jarring the end covers during high-speed 0.7 MPa retraction strokes.
Carton Flap Folding
Folds extended corrugated carton flaps on packaging machines, where the built-in magnet confirms fold completion for the PLC before the next cycle begins.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X225-50S the Right Cylinder?
Stepping down in bore size to the 20mm variant reduces output to 157N push at 0.5 MPa, whereas moving up to the 32mm bore increases thrust to 402N. Choose this MBLCJ when you need both stroke length tuning and active end-cushioning. The rear adjuster acts purely as a mechanical travel stop and the cushion only decelerates; neither holds a load statically, so use an external locking mechanism if drift is unacceptable. Mounting is restricted to Basic, FA flange, or LB foot (no SDB or back-cover options). Ensure a direct replacement matches: 25mm bore, 225mm stroke, 50mm adjust code, G1/8 port, PT thread, and the -S magnet.
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 MBLCJ25X225-50S FAQ
At 0.5 MPa this 25mm bore cylinder provides 245N push and 206N pull force. At 0.7 MPa the push increases to 343N, and it reaches a theoretical maximum of 50 kgf at 1.0 MPa.
The rear stopper lets you trim up to 50mm of travel, giving a usable stroke window of 175-225mm. This rear adjuster is strictly a travel stop, not a load lock. It works independently from the adjustable air cushion, which screw-tunes end-of-stroke deceleration to protect the cylinder covers.
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Standard models usually ship in 3-4 days.
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