Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10
The AirTAC Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 115–125mm. Fixed rubber bumper.
- BoreØ50 mm
- Stroke125 mm
- Adjustable115–125 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionFixed rubber bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10
The AirTAC MBLJ50X125-10 is a compact double-acting aluminum mini cylinder engineered to deliver 981 N of push force and 881 N of pull force at 0.5 MPa. A rear screw mechanism allows you to trim up to 10 mm of travel, providing a usable stroke window from 115 to 125 mm. This fine-tuning capability is ideal for dialing in exact end positions during machine commissioning without adding bulky external stops.
This 50 mm bore variant features a G1/4 port, a Ø16 hard-chrome plated carbon steel rod, and a fixed rubber bumper to soften end impact. The riveted rolling-packed barrel and grease-retaining piston seal ensure durable service. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors. The rear adjuster functions strictly as a travel stop and will not hold the load if air pressure drops.
Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 Technical Specifications
| Model | Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 115–125 mm (trim 10 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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 | Fixed rubber bumper |
| Max standard stroke | Up to 500 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10
| MBLJ | MBLJ aluminum-barrel adjustable-stroke mini cylinder. |
|---|---|
| 50 | 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: MBLCJ (adjustable stroke, adjustable cushion), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 Is Used
Packaging Sealing Head
Dials in the exact 115-125 mm crush distance on a carton sealing head, using the 981 N push force to securely fold flaps without rupturing the adhesive bond.
CNC Fixture Positioning
Fine-tunes the extended end stop on a pneumatic clamping fixture, allowing operators to compensate for varying aluminum casting thicknesses without reprogramming the machine.
Woodworking Panel Press
Applies consistent downward pressure for edge-banding operations, relying on the fixed rubber bumper to absorb the 125 mm travel impact and protect the workpiece.
Is the Airtac MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 the Right Cylinder?
Choose this 50 mm bore when an application demands roughly 981 N of push force at 0.5 MPa. If your process requires less clamping power, stepping down to the 40 mm bore yields 628 N of push force while retaining the same G1/4 port size. Conversely, if you need to move heavier payloads, the 63 mm bore provides 1558 N of push force. At 125 mm stroke, the 16 mm rod is robust, but always verify side-load conditions and use an external guide to prevent rod bending.
This MBLJ variant features a PT tapered port thread and a fixed rubber bumper; for high-cycle applications needing adjustable air cushions, consider the MBLCJ series. Because this SKU is non-magnetic, you must select an -S version if electronic (DMSG/EMSG) or reed (CMSG) sensor feedback is required. Mounting is limited to Basic, FA flange, or LB foot styles, as the MBLJ design excludes back-cover or SDB pivot options. The overall length is longer than a fixed MBL cylinder, calculated as A + 2 x stroke + adjust.
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 MBLJ Adjustable Aluminum Alloy Mini Cylinder MBLJ50X125-10 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N, with a maximum theoretical output of 200 kgf at 1.0 MPa. The 10 mm rear adjuster allows you to trim the 125 mm stroke, yielding a usable travel window of 115 to 125 mm.
No, this specific SKU does not have a built-in magnet, so it cannot support AirTAC CMSG, DMSG, or EMSG sensor switches. Additionally, the rear adjuster is a travel stop that sets the end position; it is not a lock and will not hold the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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