Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 30mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 0–30mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke30 mm
- Adjustable0–30 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30
The AirTAC MBLCJ25X30-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa. The 30 mm adjustment code means you can trim the full 30 mm of rear travel, providing a usable stroke window of 0 to 30 mm for precise end-position tuning.
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 or heavier moves. The riveted rolling-packed aluminum barrel and 20 um hard-chrome plated carbon-steel rod provide durability in tight spaces. Note that this specific SKU lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 30 mm |
| Adjustable window | 0–30 mm (trim 30 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 MBLCJ25X30-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×30 | Nominal stroke length in mm. |
| -30 | 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 MBLCJ25X30-30 Is Used
PCB Pick-and-Place
Provides 245 N of push force for a 30 mm pick-and-place stroke on a PCB assembly line, using the 0-30 mm adjustable window to dial in exact component placement height.
Dispenser Valve Actuation
Tunes the end-of-stroke air cushion to prevent fluid splashing when opening a pneumatic dispensing valve, ensuring clean adhesive application.
Small Part Ejection
Ejects small plastic parts from a molding machine, using the 206 N pull force and compact 10 mm rod to reliably retract the ejector pin.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X30-30 the Right Cylinder?
If you need less force, step down to the 20 mm bore which provides 157 N of push force at 0.5 MPa; if you need more power, step up to the 32 mm bore which offers 402 N. Choose this MBLCJ variant over the MBLJ when your application requires controlled deceleration rather than a hard bumper stop, or over the MBLC when you need to fine-tune the end position. Remember the rear adjuster is a travel stop, not a load lock; the air cushion only decelerates. Mounting is limited to Basic, FA, or LB styles as there is no SDB pivot or back-cover option. For a direct replacement, match the 25 mm bore, 30 mm stroke, 30 mm adjust code, G1/8 port, PT thread, and confirm no magnet is fitted.
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 MBLCJ25X30-30 FAQ
At 0.5 MPa it provides 245 N of push force and 206 N of pull force. At 0.7 MPa the push force is 343 N. The maximum theoretical force is 50 kgf at 1.0 MPa.
The 30 mm adjustment code lets you trim the rear travel down to zero, creating a 0 to 30 mm usable stroke window. This rear stopper sets the travel end position but does not hold the load. The adjustable air cushion only decelerates the piston near the ends and is also not a locking mechanism.
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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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Most inquiries answered within 7-8 hours.
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