Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 80mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 70–80mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke80 mm
- Adjustable70–80 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
About the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10
The AirTAC MBLCJ20X80-10 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. With a 20mm bore, it delivers 157N push and 132N pull at 0.5 MPa. The 10mm rear adjuster allows you to trim the travel, creating a usable 70-80mm stroke window for precise end-position tuning.
This model uses a G1/8 port, an Ø8 carbon-steel rod with 20µm hard-chrome plating, and a grease-retaining piston seal. The screw-tunable cushioning decelerates the rod near the end caps to absorb impact, which is critical for protecting the riveted aluminum barrel in faster cycles. Note that this SKU lacks a built-in magnet, so it cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 70–80 mm (trim 10 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 MBLCJ20X80-10
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 MBLCJ20X80-10 Is Used
PCB Edge Routing
Drives a light routing head across a printed circuit board, using the 70-80mm stroke window to dial in the exact cut limit while the air cushion softens the rapid tool return.
Dispenser Nozzle Height
Sets the gap for a fluid dispensing nozzle on a packaging line, trimming the 10mm stroke to stop drips precisely above the container before the fast retraction.
Wire Feeder Guide
Positions a wire guide carriage in a small welding cell, where the 157N push force shifts the lightweight guide and the cushion prevents bounce at stroke end.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X80-10 the Right Cylinder?
At 157N push force at 0.5 MPa, this 20mm bore is the smallest available. If your application requires more thrust, stepping up to the 25mm bore yields 245N push. The primary reason to choose this MBLCJ over the MBLJ variant is the adjustable air cushion: it allows you to tune end-of-stroke deceleration for heavier or faster moving loads, whereas the MBLJ relies on a fixed rubber bumper. If you do not need stroke adjustment, the MBLC offers fixed-stroke cushioning.
Remember that the rear adjuster is a travel stop, not a lock; it sets the end position but does not hold the load. Mounting is limited to Basic, FA flange, or LB foot brackets, as there is no SDB pivot or back-cover option. For an exact replacement, match the 20mm bore, 80mm stroke, 10mm adjust code, PT thread, and confirm no magnet is required. With an 80mm stroke on an Ø8mm rod, external guiding is recommended to prevent rod bending under side loads.
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 MBLCJ20X80-10 FAQ
The 20mm bore generates 157N push and 132N pull at 0.5 MPa, 220N push at 0.7 MPa, and a maximum theoretical force of 32 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa.
The rear adjuster mechanically limits the travel, giving you a 70-80mm usable window, but it acts only as a stop and does not lock the load. The adjustable air cushion separately tunes the deceleration rate at the end caps to reduce impact shock. Neither feature holds position without live air pressure.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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