Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 125mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 105–125mm. Adjustable air cushion (both ends).
- BoreØ32 mm
- Stroke125 mm
- Adjustable105–125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20
The AirTAC MBLCJ32X125-20 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and screw-tunable air cushions at both ends. You can trim up to 20mm of travel at the rear, yielding a usable stroke window of 105-125mm. Driven by a Ø12mm carbon-steel rod with 20um hard-chrome plating, it delivers 402N push and 346N pull force at 0.5MPa, making it well-suited for mid-range actuation over a 125mm run.
This model uses a riveted rolling-packed barrel and a heterogeneous two-way grease-retaining piston seal to maintain lubrication over high cycle counts. The adjustable air cushion lets you dial in end-of-stroke deceleration for heavier loads, protecting the end covers where a fixed bumper would fail. Note that this specific SKU lacks a built-in magnet (-S), so it cannot accept CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 105–125 mm (trim 20 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 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 MBLCJ32X125-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | Nominal stroke length in mm. |
| -20 | 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 MBLCJ32X125-20 Is Used
PCB Router Z-Axis
Lifts and lowers a high-speed spindle on a printed circuit board depaneling machine, using the 105-125mm stroke window to dial in exact cutting depth while the air cushion prevents snap-back at the 125mm extension.
Textile Tension Arm
Actuates a fabric guide arm on a loom, leveraging the 402N push force to maintain web tension; the adjustable cushion softens the 125mm stroke end to protect the riveted aluminum barrel from shock.
Bottle Capper Head
Drives a capping head onto plastic bottle threads on a rotary filling line, using the 20mm rear stopper to precisely set the final capping torque distance without bottoming out the mechanism.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X125-20 the Right Cylinder?
If you need less force, step down to the 25mm bore (245N push at 0.5MPa); if your payload requires more thrust, step up to the 40mm bore (628N push at 0.5MPa). Choose this MBLCJ over the MBLJ when your moving mass demands tunable pneumatic deceleration rather than a fixed rubber bumper, or over the MBLC when you need to fine-tune the end position.
Remember that the rear adjuster is strictly a travel stop, not a lock, and the cushion only decelerates; neither will hold a load in place without live air pressure. Mounting is limited to Basic, FA flange, or LB foot styles (no SDB pivot or back-cover options are available). To replace this unit, match the 32mm bore, 125mm stroke, 20mm adjust code, G1/8 port, PT thread, and confirm no magnet is required.
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 MBLCJ32X125-20 FAQ
At 0.5MPa, this 32mm bore cylinder provides 402N push force and 346N pull force. At 0.7MPa, the push force increases to 563N. The theoretical maximum force is 82kgf at 1.0MPa.
The rear adjuster physically stops the piston to trim up to 20mm of travel (usable window 105-125mm), while the adjustable air cushion uses screw-tunable trapped air to decelerate the load near the stroke ends. Neither mechanism locks or holds the load in place; you need live air or an external lock for position holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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