Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S 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 20mm for a usable window of 40–60mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke60 mm
- Adjustable40–60 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S
The AirTAC MBLCJ20X60-20S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N push and 132 N pull force at 0.5 MPa. The 20 mm rear trimmer creates a usable 40-60 mm stroke window, letting you dial in the exact travel distance for tight machinery layouts.
Unlike the base MBLJ with its fixed rubber bumper, this model uses screw-tunable end-of-stroke cushioning to decelerate faster or heavier moves, protecting the end covers. The riveted rolling-packed barrel and heterogeneous grease-retaining piston seal prevent lubricant washout, while the Ø8 mm carbon-steel rod with 20 µm hard-chrome plating resists wear. The built-in magnet (-S) supports CMSG reed and DMSG/EMSG electronic sensors for position feedback.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 40–60 mm (trim 20 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 MBLCJ20X60-20S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 MBLCJ20X60-20S Is Used
PCB Pick-and-Place Z-Axis
Lifts light vacuum grippers in electronics assembly. The 40-60 mm stroke window allows micro-adjustments for varying board thicknesses, while the tunable cushion prevents end-cover shock at high cycle rates.
Microfluidic Valve Actuation
Drives small dispensing valves in medical diagnostic equipment. The 157 N push force securely seats the valve, and the DMSG solid-state sensor confirms the exact closed position.
Thin-Film Web Edge Guide
Nudges low-friction guide rollers in packaging lines. The compact riveted barrel fits into tight machine frames, and the adjustable stroke stopper sets the exact 45 mm correction limit.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X60-20S the Right Cylinder?
At 157 N push (0.5 MPa), this 20 mm bore suits light-duty positioning. If you need less force, no smaller standard bore exists in this family. If your application requires more power, step up to the 25 mm bore, which provides 245 N push at 0.5 MPa. Choose the MBLCJ over the MBLJ when your cycle speeds demand tunable deceleration rather than a fixed impact bumper, or over the MBLC when you need to fine-tune the end position within that 40-60 mm window.
Remember that the rear adjuster is a travel stop, not a lock—it cannot hold a load in place without continuous air pressure, and the cushion only decelerates. Mounting is limited to Basic, FA (flange), or LB (foot) brackets; there is no SDB pivot or back-cover option. For a direct replacement, match the 20 mm bore, 60 mm stroke, 20 mm 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 MBLCJ20X60-20S FAQ
At 0.5 MPa, this 20 mm bore cylinder provides 157 N push and 132 N pull force. At 0.7 MPa, the push force is 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The rear adjustable stroke is a mechanical travel stop that limits the rod's end position within a 40-60 mm window; it does not lock or hold the load. The adjustable air cushion is a screw-tunable valve that controls end-of-stroke deceleration to absorb kinetic energy, which is distinct from the base MBLJ's fixed rubber bumper.
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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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