Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 145–175mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke175 mm
- Adjustable145–175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30
The AirTAC MBLCJ25X175-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a tunable air cushion at both ends. It delivers 245 N of push force and 206 N of pull force at 0.5 MPa. The 30 mm rear adjustment lets you fine-tune the travel within a precise 145 to 175 mm usable window, making it ideal for applications requiring exact end-positioning. Because this SKU lacks the -S magnet code, it cannot accept a CMSG, DMSG, or EMSG position sensor.
Unlike the base MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable end-of-stroke deceleration to absorb kinetic energy, protecting the end covers during faster cycling. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal prevent lubricant washout, while the Ø10 mm carbon-steel rod features 20 μm hard-chrome plating to resist side-scoring. Remember the rear stopper sets the travel end but does not lock the load, and the overall length equals A + 2 x 175 mm + 30 mm.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 145–175 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 MBLCJ25X175-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MBLCJ25X175-30 Is Used
Textile Loom Tensioning
Adjusts yarn guide arms within the 145-175 mm window, using the tunable cushion to softly stop the 245 N push force without jarring the thread guides.
Dispenser Valve Profiling
Trims the exact closure point of a fluid dispensing head, relying on the 30 mm rear stopper to set the precise travel end for chemical metering.
PCB Depanelling Press
Drives a small cutting blade at 30-800 mm/s, using the adjustable air cushion to decelerate the 206 N pull load and prevent cracking the circuit board substrate.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X175-30 the Right Cylinder?
If your load requires less force, stepping down to the 20 mm bore yields 157 N push at 0.5 MPa, whereas stepping up to the 32 mm bore provides 402 N. Choose this MBLCJ over the MBLJ when you need tunable deceleration rather than a fixed bumper, or over the MBLC when you need the rear travel stopper alongside the cushion. Neither the cushion nor the adjuster acts as a lock; the rod will drift without live air pressure, so use an external guide for side-load support on this 175 mm stroke.
For exact replacement, match the 25 mm bore, 175 mm stroke, 30 mm adjust code, G1/8 port, and default PT tapered thread. Mounting is limited to Basic, FA flange, or LB foot; there is no SDB pivot or back-cover option available.
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 MBLCJ25X175-30 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 increases to 343 N. The theoretical maximum is 50 kgf at 1.0 MPa.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches. The 30 mm rear adjuster is a travel stop that sets the end position, not a lock; the cylinder cannot hold a load without live air pressure.
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