
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X10-10 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 10mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 0–10mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ20X10-10 is a compact double-acting mini cylinder featuring a rear travel stopper and tunable pneumatic cushions at both ends. It delivers 157 N of push force at 0.5 MPa. The rear adjuster trims up to 10 mm of travel, providing a usable stroke window of 0 to 10 mm. This makes it highly effective for applications requiring exact micro-positioning rather than relying on the full nominal stroke.
Unlike the standard MBLJ which relies on a fixed rubber bumper, this MBLCJ variant features screw-tunable end-of-stroke deceleration to absorb impact energy safely. The Ø8 mm carbon-steel rod is protected by a 20 μm hard-chrome plating, and the riveted aluminum barrel ensures a lightweight, space-saving footprint. This specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X10-10 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 10 mm |
| Adjustable window | 0–10 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.
| 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.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×10 | 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).
Ideal for small pneumatic presses ejecting delicate electronic components, using the 0-10 mm stroke window to dial in the exact ejector pin height and prevent over-travel.
Perfect for automated test fixtures where the 157 N push force gently advances a gauging probe against a machined part, using the tunable air cushion to prevent needle damage.
Suits conveyor edge-guiding systems where the 10 mm stroke adjusts the guide rail width for varying board sizes, relying on the compact riveted aluminum body for tight machine frames.
When sizing this 20 mm bore, stepping down is not an option as this is the smallest available MBL frame. If your assembly requires more power, the next size up is the 25 mm bore, which provides 245 N of push force at 0.5 MPa. Choose the MBLCJ over the fixed-stroke MBLC if your mechanism needs on-the-fly end-position tuning. Remember that the rear adjuster acts only as a mechanical travel stop, and the cushions only decelerate the load; neither component will lock or hold the rod position pneumatically. Mounting is restricted to Basic, FA flange, or LB foot configurations, as no SDB pivot or back-cover options exist for this series. The standard PT tapered port threads match the G1/8 air supply.
Quick checklist
At 0.5 MPa operating pressure, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force is 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The adjustable stroke is a rear mechanical stopper that trims the travel window down to 0-10 mm, setting where the rod physically ends its motion. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end caps to reduce impact. Neither feature locks or holds the load in place.
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Standard models are processed and dispatched in 3-5 business days.
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