
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X20-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 20mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 0–20mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X20-20S is a compact double-acting mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 402 N push and 346 N pull force at 0.5 MPa. The 20 mm adjustable trimmer creates a usable 0-20 mm end-position window, ideal for fine-tuning short-travel clamping. A built-in magnet enables position detection.
Screw-tunable end cushions decelerate the rod to protect the covers, unlike the fixed bumper on an MBLJ. The rear adjuster sets the travel stop but does not lock the load. This SKU uses a G1/8 port, an Ø12 mm hard-chrome rod, and a riveted aluminum barrel for tight spaces. It is a non-ISO mini cylinder.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X20-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 20 mm |
| Adjustable window | 0–20 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 500 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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).
Tunes a 0-20 mm contact window to grip delicate circuit boards in an SMT fixture without overshooting, using 402 N of clamping force.
Adjusts the exact stroke end to press a label roller onto packaging film, while the air cushion prevents harsh impact at 800 mm/s.
Pushes light plastic moldings out of a press die, relying on the DMSG solid-state sensor to confirm full retraction before the next cycle.
If 245 N push at 0.5 MPa is enough, step down to the 25 mm bore to save space. For heavier pressing, the 40 mm bore yields 628 N. Choose MBLCJ over MBLJ when you need tunable deceleration, or MBLC for fixed stroke. The rear adjuster and cushions are not brakes; use an external lock for position holding. Mounting is Basic, FA, or LB only. For exact replacement match: 32 mm bore, 20 mm stroke, 20 mm adjust, G1/8 PT thread, no FA/LB mount, with -S magnet.
Quick checklist
At 0.5 MPa, it provides 402 N push and 346 N pull force. At 0.7 MPa, push increases to 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
The rear adjustable stroke is a mechanical travel stop that trims the end position within a 0-20 mm window, but it does not hold the load. The adjustable air cushion is a screw-tunable valve that decelerates the piston near the end covers to prevent impact damage; it is not a lock.
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