Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 150mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 120–150mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke150 mm
- Adjustable120–150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S
The AirTAC MBLCJ25X150-30S is a compact, double-acting mini round cylinder engineered for precise motion control in tight spaces. It features a rear travel stopper that trims up to 30 mm, creating a usable stroke window of 120-150 mm. Driven by a Ø10 mm rod, it delivers 245 N of push force and 206 N of pull force at 0.5 MPa. The riveted aluminum barrel and 20 µm hard-chrome plated carbon-steel rod ensure durability for millions of cycles.
Unlike the fixed rubber bumper on an MBLJ, this model incorporates a screw-tunable adjustable air cushion at both ends to decelerate heavier loads smoothly. The built-in magnet (-S) supports position detection. Keep in mind the rear stopper sets the travel end position; it does not lock or hold the load pneumatically, so external locking mechanisms are required for fail-safe holding.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 120–150 mm (trim 30 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 MBLCJ25X150-30S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -30 | 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 MBLCJ25X150-30S Is Used
PCB Depaneling Saw Feed
Feeds a circular blade through a populated circuit board panel. The 120-150 mm usable stroke provides the exact linear travel for a clean cut, while the 245 N push force drives the blade without stalling.
Textile Loom Tensioner
Actuates a fabric guide arm on a high-speed weaving machine. The tunable air cushion decelerates the 150 mm move to prevent yarn snapping, and the -S magnet confirms arm retraction for the control logic.
Small Parts Ejector
Pushes stamped metal terminals out of a die. The 206 N pull force reliably retracts the 10 mm rod, and the 30 mm rear adjuster dials in the exact ejection distance to match the chute opening.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-30S the Right Cylinder?
Choose this 25 mm bore if you need 245 N of thrust at 0.5 MPa and a 150 mm stroke with 30 mm of rear trim. If your application requires less force, step down to the 20 mm bore, which yields 157 N of push force. If you are moving heavier tooling, step up to the 32 mm bore, providing 402 N. The MBLCJ is preferred over the MBLJ when shock absorption is critical, and over the MBLC when you need on-the-fly stroke length tuning.
Remember that the adjustable air cushion only manages end-of-stroke deceleration, while the rear stopper simply dictates the travel end; neither component acts as a load-holding brake. Mounting options are strictly limited to Basic, FA flange, or LB foot styles, as this series omits back-cover or SDB pivot attachments. For an exact replacement, verify the 25 mm bore, 150 mm stroke, 30 mm adjust code, G1/8 port, PT thread, and 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 MBLCJ25X150-30S FAQ
At 0.5 MPa, this double-acting 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, with an operating pressure range of 0.15-1.0 MPa.
The adjustable stroke is a rear mechanical stopper that lets you trim up to 30 mm off the 150 mm nominal stroke, creating a 120-150 mm usable window. The adjustable air cushion is a separate screw-tunable valve at each end that controls end-of-stroke deceleration. Neither feature locks or holds the load in place.
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