Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X25-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X25-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 25mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 15–25mm. Adjustable air cushion (both ends).
- BoreØ40 mm
- Stroke25 mm
- Adjustable15–25 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 MBLCJ40X25-10
The AirTAC MBLCJ40X25-10 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The rear stopper trims up to 10mm of travel, creating a usable extension window of 15-25mm. Driven by a Ø16mm carbon-steel rod through a G1/4 port, it delivers 628N push and 528N pull force at 0.5 MPa. This short 25mm stroke is ideal for high-force clamping in tight spaces.
Unlike the fixed rubber bumper on an MBLJ, the screw-tunable air cushion on this model lets you dial in end-of-stroke deceleration, absorbing kinetic energy to protect the end covers during fast, heavy moves. The riveted rolling-packed barrel and grease-retaining piston seal maintain consistent pressure, while the 20µm hard-chrome plating resists wear. Note that this specific SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X25-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X25-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 25 mm |
| Adjustable window | 15–25 mm (trim 10 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 MBLCJ40X25-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 MBLCJ40X25-10 Is Used
Injection Mold Ejection
Provides 628N of push force at 0.5 MPa to eject small plastic parts from tight mold cavities, using the 15-25mm adjustable window to time the ejection stroke perfectly.
PCB Stencil Wiping
Drives a short-stroke wiper blade across solder paste stencils, where the tunable air cushion prevents sudden end-impacts from shaking the delicate frame.
Pneumatic Pressing
Performs light-duty riveting or press-fitting of small bearings, utilizing the 880N available at 0.7 MPa while slowing the rod safely before the end cap.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X25-10 the Right Cylinder?
If 628N of push force is excessive for your payload, step down to the 32mm bore (MBLCJ32 series), which yields 402N at 0.5 MPa. If your application requires shifting heavier jigs, step up to the 50mm bore (MBLCJ50 series) for 981N. The MBLCJ is preferred over the MBLJ when you need active shock tuning rather than a fixed bumper, and 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 and does not hold position, so use an external locking device for fail-safe holding.
Mounting is limited to Basic, FA (flange), or LB (foot) styles; this series does not support SDB pivot or back-cover options. The overall length extends by the adjustment amount. To match this exact replacement, verify: 40mm bore, 25mm stroke, 10mm adjust code, G1/4 port, PT thread, and no S (no 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 MBLCJ40X25-10 FAQ
At 0.5 MPa, this 40mm bore cylinder provides 628N push and 528N pull force. At 0.7 MPa, push increases to 880N. The maximum theoretical force is 128 kgf at the 1.0 MPa pressure limit.
This specific SKU has no built-in magnet (-S omitted), so it cannot accept CMSG, DMSG, or EMSG sensors. The 10mm adjustment code means the rear stopper trims travel to a 15-25mm usable window. This sets the end position; it is not a lock, and the air cushion only decelerates the load.
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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.
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