Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10 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 MBLCJ25X40-10
The AirTAC MBLCJ25X40-10 is a compact double-acting mini cylinder featuring a rear stroke adjuster and screw-tunable air cushions at both ends. It delivers 245 N push and 206 N pull force at 0.5 MPa. The rear stopper lets you trim up to 10 mm of travel, creating a usable stroke window of 30 to 40 mm for precise end-positioning.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses adjustable end-of-stroke cushioning to decelerate heavier loads smoothly and protect the end covers. The riveted aluminum barrel and 20 µm hard-chrome plated carbon-steel rod provide durable service in tight spaces. This specific SKU lacks a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10 |
|---|---|
| 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 MBLCJ25X40-10
| 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 MBLCJ25X40-10 Is Used
PCB Router Z-Axis
Drives the vertical plunge of a spindle routing populated boards, using the 30-40 mm usable window to dial in the exact cutting depth and the air cushion to halt the plunge without jarring the delicate fiberglass.
Dispenser Valve Tapping
Actuates a pneumatic shot dispenser for conductive epoxy, relying on the 245 N push force to open the valve and the adjustable stopper to finely tune the dispense stroke for consistent bead size.
Small Parts Ejector
Pushes stamped metal terminals out of a progressive die fixture, using the 40 mm stroke and cushioned ends to prevent the lightweight parts from launching uncontrollably during ejection.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X40-10 the Right Cylinder?
If you need less force, stepping down to the 20 mm bore yields 157 N push at 0.5 MPa, whereas moving up to the 32 mm bore provides 402 N push. Choose the MBLCJ over the MBLJ when your application requires tuned end-deceleration rather than a fixed bumper, or over the MBLC if you need that rear travel stopper to trim the 40 mm stroke down to 30 mm. Remember that the adjuster is a travel stop and the cushion only decelerates; neither holds a load pneumatically, so external locking is required for position holding.
Mounting is limited to Basic, FA flange, or LB foot styles, as there is no SDB pivot or back-cover option on this body. The overall length is A + 2 x stroke + adjust. To match this replacement exactly, confirm the 25 mm bore, 40 mm stroke, 10 mm adjust code, G1/8 port, PT thread, and the absence of the -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 MBLCJ25X40-10 FAQ
At 0.5 MPa, this 25 mm bore cylinder 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.
No, this specific SKU does not have the -S code, meaning no internal magnet is fitted. It cannot trigger AirTAC CMSG reed or DMSG/EMSG electronic sensors. You would need the MBLCJ25X40-10S variant for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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