Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 25mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of -5–25mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke25 mm
- Adjustable-5–25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S
The AirTAC MBLCJ25X25-30S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The 30mm adjuster trims the 25mm stroke, yielding a usable travel window of 0-25mm. Delivering 245N push and 206N pull at 0.5 MPa, it suits precise short-dwell tasks. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal ensure lasting lubrication.
Unlike the base MBLJ with its fixed rubber bumper, this model uses screw-tunable air deceleration to protect the end covers during faster moves. The Ø10 carbon-steel rod features 20µm hard-chrome plating for wear resistance. The built-in magnet (-S) supports position sensing, while the rear stopper sets the travel end but does not lock the load.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 25 mm |
| Adjustable window | -5–25 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 MBLCJ25X25-30S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 MBLCJ25X25-30S Is Used
PCB Router Z-Axis
Handles rapid plunge and retract cycles for a spindle, using the 0-25mm window to dial the exact cutting depth while the air cushion absorbs the end impact.
Label Dispenser Tamp
Applies 245N of tamping force to press labels onto cartons, relying on the tunable deceleration to prevent label tearing at high speed.
Small Part Ejector
Pushes machined brass fittings out of a lathe collet, using the DMSG electronic sensor to confirm full retraction before the next bar feeds.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X25-30S the Right Cylinder?
With a 245N push force at 0.5 MPa, stepping down to the 20mm bore yields 157N for lighter loads, while stepping up to the 32mm bore provides 402N for heavier pushes. Choose this MBLCJ over the MBLJ when your cycle speed demands tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC if you need to fine-tune the travel end position.
The 30mm adjustment window lets you dial in the exact end position, but remember the adjuster is a travel stop, not a lock; the rod will drift without live air. Mounting is limited to Basic, FA flange, or LB foot (no SDB or back-cover options). To replace this unit, match the 25mm bore, 25mm stroke, 30mm 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 MBLCJ25X25-30S FAQ
At 0.5 MPa, the push force is 245N and the pull force is 206N. At 0.7 MPa, the push force reaches 343N. The maximum theoretical force is 50 kgf at 1.0 MPa.
The rear stroke adjuster acts as a mechanical stop, trimming the usable travel window down to 0-25mm. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end caps. Neither holds the load in place; the cylinder requires live air to maintain position.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
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