Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 50–125mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke125 mm
- Adjustable50–125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75
The AirTAC MBLCJ25X125-75 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 rear stopper allows you to trim up to 75 mm of travel, creating a usable stroke window of 50 to 125 mm for precise end-positioning. Equipped with a G1/8 port and an Ø10 rod, this configuration uses a standard PT thread and ships without a built-in magnet.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable end-of-stroke deceleration to absorb kinetic energy, protecting the end covers during faster or heavier moves. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal minimize wear, while the carbon-steel rod features 20 µm hard-chrome plating for corrosion resistance. Note that the rear adjuster acts purely as a mechanical travel stop and does not lock or hold the load in place.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 50–125 mm (trim 75 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 MBLCJ25X125-75
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×125 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ25X125-75 Is Used
Packaging Conveyor Diverter
Provides 245 N of push force to deflect cardboard cartons on a packaging line, using the 50-125 mm stroke window to time the diverting stroke perfectly.
PCB Router Gate
Tunes the air cushion to softly decelerate a routing gate handling delicate printed circuit boards, preventing impact damage at the end of travel.
Textile Tensioning Arm
Uses the 75 mm rear stroke adjustment to fine-tune the resting position of a fabric tensioning arm, maintaining exact material feed without needing a sensor.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-75 the Right Cylinder?
If you need less force, the neighbouring 20 mm bore provides 157 N of push at 0.5 MPa, whereas stepping up to the 32 mm bore yields 402 N. Choose this MBLCJ over the MBLJ when your application demands tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC when you need that rear travel-stop adjustment. Remember that neither the cushion nor the adjuster acts as a lock; the rod will drift without live air, so use an external guide for side-load support. Mounting is limited to Basic, FA, or LB styles (no SDB or back-cover options). For a direct replacement, match the 25 mm bore, 125 mm stroke, 75 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 MBLCJ25X125-75 FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N of push force and 206 N of pull force. At 0.7 MPa, the push force increases to 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 AirTAC CMSG, DMSG, or EMSG position switches. Additionally, the 75 mm rear adjuster only sets the travel end-point; it is a mechanical stop, not a lock, and the rod will drift without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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