
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-10S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 225mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 215–225mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ20X225-10S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. A 20mm bore yields 157N push and 132N pull at 0.5MPa. The rear stopper trims up to 10mm of travel, creating a usable 215-225mm stroke window to dial in exact end positions.
This SKU includes a built-in magnet (-S) for CMSG reed or DMSG/EMSG electronic sensors. The riveted rolling-packed barrel and 20um hard-chrome plated Ø8 carbon-steel rod ensure durability. Because the 225mm stroke is long for an Ø8 rod, external guide rails are recommended to prevent side-load bending. The screw-tunable cushioning decelerates fast moves, protecting the end covers better than a fixed bumper.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X225-10S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 225 mm |
| Adjustable window | 215–225 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. |
| ×225 | 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).
Positions a guide rail on a conveyor sanding line. The 215-225mm stroke window sets exact board width clearance, while the air cushion absorbs the rapid 157N extension impact to protect aluminum end covers.
Drives a vertical vacuum cup ejector in a small electronics assembly cell. The tunable cushion slows the 225mm drop at stroke end, preventing shock that would dislodge microchips during high-speed transfer.
Applies labels onto packaging using the -S magnet and a DMSG solid-state sensor to confirm tamp position. The 10mm stroke trim allows precise 215-225mm reach calibration without moving the entire bracket.
At 0.5MPa this 20mm bore generates 157N push force. If your payload is lighter, stepping down to the 12mm bore variant offers a smaller footprint. If you need more thrust, stepping up to the 25mm bore provides 245N push. Choose this MBLCJ over the MBLJ when your cycle speed requires tunable end-deceleration rather than a fixed rubber bumper. Choose it over the MBLC when you need to fine-tune the stroke length.
The rear adjuster sets the travel end-stop and the cushion governs deceleration; neither holds the load pneumatically, so use an external lock for position holding. Mounting is limited to Basic, FA flange, or LB foot (no SDB or back-cover). Replacement must match: bore 20, stroke 225, adjust 10, port G1/8, PT thread, and the -S magnet.
Quick checklist
At 0.5MPa it provides 157N push and 132N pull force. At 0.7MPa push increases to 220N. The maximum theoretical force is 32kgf at 1.0MPa, with a proof pressure of 1.5MPa.
The rear stroke adjuster is a mechanical travel stop that trims the usable stroke from 215 to 225mm. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end covers. Neither component locks or holds the load pneumatically; external guides are required for position holding.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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