Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75 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 75mm for a usable window of 75–150mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke150 mm
- Adjustable75–150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75
The AirTAC MBLCJ25X150-75 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The rear stopper allows you to trim up to 75 mm of travel, creating a usable 75-150 mm stroke window. Driven by a Ø10 mm carbon-steel rod with 20 µm hard-chrome plating, it delivers 245 N push and 206 N pull at 0.5 MPa. This 150 mm stroke suits mid-range positioning tasks on compact machinery.
Unlike the base MBLJ with its fixed rubber bumper, the screw-tunable air cushion on this unit decelerates heavier or faster moving loads right at the stroke ends to protect the end covers. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal maintain consistent lubrication. Note that this specific SKU lacks the -S magnet option, meaning it cannot accept CMSG, DMSG, or EMSG position sensors. The adjuster is a travel stop, not a load lock; external guides are recommended for this length to prevent rod bending.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 75–150 mm (trim 75 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 MBLCJ25X150-75
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -75 | 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 MBLCJ25X150-75 Is Used
PCB Conveyor Diverter
Pushes lightweight routing gates on SMT lines using 245 N force, while the 75-150 mm stroke window dials in exact board transfer alignment without repositioning brackets.
Pick-and-Place Z-Axis
Lowers vacuum grippers in assembly cells where the adjustable air cushion brakes the 150 mm descent, preventing hard impacts that misalign delicate surface-mounted components.
Filament Tensioning Arm
Maintains tension on fiber-winding machines; the rear stopper sets a precise 75 mm travel limit to prevent slack, while the cushion softens the rapid reversal strokes.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X150-75 the Right Cylinder?
If you need less force, step down to the Ø20 bore, which yields 157 N push at 0.5 MPa. For heavier pushing, the Ø32 bore provides 402 N. Choose this MBLCJ over the MBLJ when your cycle speeds require tunable end-of-stroke deceleration rather than a simple fixed bumper, or over the MBLC if you need to fine-tune the travel end. Remember that neither the rear adjuster nor the cushion acts as a lock; the rod drifts without live air, so use an external locking mechanism for fail-safe holding. Mounting is limited to Basic, FA, or LB styles (no SDB or back-cover options). For a direct replacement, match the 25 mm bore, 150 mm stroke, 75 mm adjust, G1/8 port, PT thread, and confirm no magnet is fitted. At 150 mm stroke, the small 10 mm rod is susceptible to side-load bending, so external guidance is essential.
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 MBLCJ25X150-75 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. The operating pressure range is 0.15-1.0 MPa.
The rear adjustable stroke is a mechanical travel stop that lets you trim the usable window down to 75-150 mm. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end covers. Neither holds position; without live air, the rod drifts, so you need an external lock for fail-safe holding.
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