Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø25mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 115–125mm. Adjustable air cushion (both ends).
- BoreØ25 mm
- Stroke125 mm
- Adjustable115–125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10
The AirTAC MBLCJ25X125-10 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 245 N push and 206 N pull force at 0.5 MPa. The rear adjuster trims up to 10 mm of travel, creating a usable stroke window of 115 to 125 mm, ideal for refining end positions on packaging machinery.
Unlike the fixed rubber bumper found on the base MBLJ, the screw-tunable air cushion on this unit decelerates the rod near the end caps, allowing faster cycle speeds without slamming the covers. The 10 mm adjustment acts purely as a travel stop and cannot hold a load in place. Because this specific SKU lacks the built-in magnet suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor. The riveted aluminum barrel and 20 µm hard-chrome plated carbon-steel rod ensure durability, while the grease-retaining piston seal maintains lubrication over long service intervals.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø25 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 115–125 mm (trim 10 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 MBLCJ25X125-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 MBLCJ25X125-10 Is Used
Carton Erector Sealing
Provides 245 N of push force to fold and seal corrugated packaging flaps, using the 115-125 mm adjustable window to perfectly time the crease against the fixed lower die.
Label Applicator Tamp
Uses the tunable air cushion to softly press adhesive labels onto curved plastic bottles at high speeds, preventing label tearing or bottle tipping without harsh impacts.
Textile Yarn Guide
Shifts a yarn guide carriage across a weaving loom, relying on the 10 mm rear stopper to fine-tune the edge alignment while the cushion absorbs the rapid directional changes.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ25X125-10 the Right Cylinder?
When sizing this 25 mm bore, stepping down to the 20 mm bore reduces output to 157 N push at 0.5 MPa, whereas stepping up to the 32 mm bore increases force to 402 N. Choose this MBLCJ over the MBLJ when your application speed requires tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC when you need the 10 mm rear travel adjustment. Remember that the adjuster and cushion are not locking devices; the rod will drift without live air pressure, so use an external guide for side-load protection. Replacement parts must match the 25 mm bore, 125 mm stroke, 10 mm adjust code, G1/8 port, PT thread, Basic mounting, and no-magnet configuration.
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 MBLCJ25X125-10 FAQ
At 0.5 MPa, this 25 mm bore cylinder provides 245 N push and 206 N pull. At 0.7 MPa, the push increases to 343 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
The 10 mm adjustable stroke is a rear mechanical travel stopper that sets your usable end position between 115 and 125 mm. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the covers. Neither mechanism locks or holds the load in place.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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