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)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Adjustable-Stroke Cylinders
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