Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 40mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 30–40mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke40 mm
- Adjustable30–40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S
The AirTAC MBLCJ25X40-10S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. It delivers a 245 N push force at 0.5 MPa. The integrated -S magnet enables position detection via CMSG reed or DMSG/EMSG solid-state switches.
This SKU features a 10 mm rear stroke adjuster, creating a usable travel window of 30 to 40 mm. Unlike the fixed rubber bumper on an MBLJ, the screw-tunable end cushions decelerate heavier loads to protect the end covers. The riveted rolling-packed barrel and 20 µm hard-chrome plated carbon-steel rod ensure durable, low-friction operation.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 40 mm |
| Adjustable window | 30–40 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 MBLCJ25X40-10S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MBLCJ25X40-10S Is Used
PCB Edge Router
Drives a routing spindle at 30-40 mm travel to cut printed circuit boards, using the tunable air cushion to soften end-of-stroke impact and protect the spindle bearings.
Dosing Valve Actuator
Adjusts a 10 mm window for precise chemical dosing valve seating, relying on the 245 N push force to consistently open viscous fluid lines.
Small Part Ejector
Kicks molded plastic parts out of a press using the 343 N push force at 0.7 MPa, with the cushion tuned to prevent the components from bouncing.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10S the Right Cylinder?
With a 245 N push force at 0.5 MPa, stepping down to a 20 mm bore yields 157 N for lighter jobs, while stepping up to a 32 mm bore provides 402 N for heavier lifts. Choose the MBLCJ over the fixed-stroke MBLC when you need to fine-tune the end position. The rear adjuster acts as a travel stop, not a load lock, so use an external guide for side loads. Mounting is restricted to Basic, FA, or LB; no SDB or back-cover options exist. To replace this unit, match the 25 mm bore, 40 mm stroke, 10 mm adjust code, G1/8 port, PT thread, and -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 MBLCJ25X40-10S FAQ
At 0.5 MPa it provides 245 N push and 206 N pull. At 0.7 MPa push is 343 N, and the maximum theoretical force is 50 kgf at 1.0 MPa.
The rear adjuster trims the travel window down to 30-40 mm by acting as a mechanical stop. The air cushion only decelerates the piston near the end covers to reduce impact. Neither holds the load; a separate lock is needed for position holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Adjustable-Stroke Cylinders
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