Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 60mm nominal stroke and a rear adjustable-stroke stopper — trim up to 50mm for a usable window of 10–60mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke60 mm
- Adjustable10–60 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50
The AirTAC MBLCJ20X60-50 is a compact double-acting aluminum mini cylinder featuring a rear travel stopper and tunable air cushioning at both ends. With a 20mm bore, it delivers 157N of push force at 0.5 MPa. The rear adjuster allows you to trim up to 50mm of travel, creating a precise 10-60mm usable stroke window for this 60mm base length.
This model uses an M8x1.25 rod-end thread and a G1/8 port. Because this specific SKU lacks the -S magnet suffix, it cannot support CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed barrel and 20-micron hard-chrome plated carbon-steel rod provide durable service, while the adjustable air cushion lets you tune end-of-stroke deceleration to protect the end covers from impact damage.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 10–60 mm (trim 50 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 MBLCJ20X60-50
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | Nominal stroke length in mm. |
| -50 | 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 MBLCJ20X60-50 Is Used
PCB Depaneling Saw Feed
Uses the 10-60mm adjustable stroke window to set the exact cutting depth for circuit boards, while the air cushion decelerates the 157N push force smoothly to prevent saw blade chatter.
Micro-Dispenser Valve Actuation
Trims the rear travel stopper to precisely meter epoxy dots, relying on the tunable end cushion to prevent fluid splashing when the 8mm rod reaches the valve seat.
Small Parts Ejector Gate
Cycles at 30-800 mm/s to push lightweight plastic moldings out of a chute, using the pneumatic cushioning to soften the end impact and reduce mechanical noise on the assembly line.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-50 the Right Cylinder?
For lower force needs, stepping down to a 16mm bore is not an option in this series, making the 20mm the entry point. If your application requires more power, the next size up is the 25mm bore, which raises push force to 245N at 0.5 MPa. Choose this MBLCJ variant over the MBLJ when your moving mass requires screw-tunable pneumatic deceleration instead of a fixed rubber bumper, or over the MBLC when you need to vary the end position.
The rear stopper sets the travel limit but does not hold the load; you must use external locking mechanics for position holding. Mounting is restricted to Basic, FA flange, or LB foot styles, as no back-cover or SDB pivot options exist for this body. The exact replacement match requires a 20mm bore, 60mm stroke, 50mm adjust code, PT thread, and no magnet. Because the stroke is 60mm, the 8mm rod is susceptible to side-load bending if used as a load guide, so external guidance is necessary.
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 MBLCJ20X60-50 FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157N of push force and 132N of pull force. At 0.7 MPa, the push force increases to 220N. The maximum theoretical force is 32 kgf at 1.0 MPa. It features a G1/8 port, an 8mm rod, and operates at speeds between 30 and 800 mm/s.
Because this specific SKU does not have the -S suffix, it lacks a built-in magnet and cannot accept CMSG, DMSG, or EMSG position switches. Additionally, the 50mm rear adjuster is strictly a travel stop that sets the 10-60mm usable window; it is not a lock and will not hold a load in place without continuous air pressure.
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Covers non-human-caused product damage.
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