Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 250mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 240–250mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke250 mm
- Adjustable240–250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S
The AirTAC MBLCJ25X250-10S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The 10 mm rear stopper yields a usable travel window of 240-250 mm, letting you dial in the exact end position. Delivering 245 N of push force at 0.5 MPa, it suits long-travel, low-force positioning tasks.
Unlike the fixed rubber bumper on a standard MBLJ, the screw-tunable air cushion here decelerates heavier loads at high speeds to protect the end covers. The riveted rolling-packed barrel and 20 µm hard-chrome plated carbon-steel rod handle 30-800 mm/s. The built-in magnet (-S) supports CMSG reed and DMSG/EMSG electronic sensors for position feedback. Remember the rear stopper sets the travel end but does not lock the load, and the overall length extends by the adjustment amount.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 250 mm |
| Adjustable window | 240–250 mm (trim 10 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 MBLCJ25X250-10S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×250 | Nominal stroke length in mm. |
| -10 | 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 MBLCJ25X250-10S Is Used
PCB Edge Conveyor Routing
Pushes a routing head across a 240-250 mm window on a PCB assembly line, using the adjustable cushion to stop the 245 N payload smoothly without jarring delicate traces.
Dispenser Valve Positioning
Trims the exact 10 mm rear stroke to set a precise fluid dispensing height, while the DMSG electronic sensor confirms the exact downstroke for repeatable dot volumes.
Lightweight Film Cutting
Extends 250 mm to drive a slitting blade across packaging film, relying on the tunable air cushion to decelerate the blade carriage and prevent end-cover impact at high speeds.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X250-10S the Right Cylinder?
Choose this 25 mm bore when you need 245 N push (206 N pull) at 0.5 MPa over a 250 mm travel path. If your application requires less force, step down to the 20 mm bore which provides 157 N push; if you need to move heavier payloads, step up to the 32 mm bore delivering 402 N push. This SKU features a G1/8 port, M10x1.25 rod thread, and default PT port threads.
Select the MBLCJ over the MBLJ when your moving mass requires tunable end-of-stroke deceleration instead of a fixed bumper, or over the MBLC when you need that final 10 mm of rear stroke adjustment. Mounting is limited to Basic, FA flange, or LB foot—no back-cover or SDB pivot options exist. Because the stroke is 250 mm, the 10 mm rod is highly susceptible to side-loading; always use an external guide rail to prevent rod bending. Neither the cushion nor the rear stopper acts as a lock 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 MBLCJ25X250-10S FAQ
At 0.5 MPa it 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. It operates between 0.15 and 1.0 MPa, with a speed range of 30-800 mm/s.
The 10 mm rear adjuster is a mechanical travel stop that sets your usable stroke window between 240-250 mm. The adjustable air cushion is a separate screw that regulates exhaust flow to decelerate the piston near the end covers. Neither component locks the load; an external guide or lock is required for position holding.
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1-Year Warranty
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Standard models usually ship in 3-4 days.
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