
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X300-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 300mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 270–300mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X300-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. The rear stopper allows you to trim up to 30 mm of travel, creating a usable stroke window of 270-300 mm. Delivering 402 N of push force and 346 N of pull force at 0.5 MPa, this 32 mm bore unit suits long-travel positioning tasks.
Unlike the fixed rubber bumper found on the base MBLJ, the screw-tunable cushion on this model decelerates heavy loads near the stroke ends to protect the end covers. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal lock in lubrication for high-speed 30-800 mm/s cycles. Because this SKU lacks the -S magnet code, it cannot host a CMSG, DMSG, or EMSG position sensor. The Ø12 mm carbon-steel rod features 20 μm hard-chrome plating to resist scoring.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X300-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 300 mm |
| Adjustable window | 270–300 mm (trim 30 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. |
| ×300 | Nominal stroke length in mm. |
| -30 | 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).
Drives the tensioning carriage in a weaving loom, using the 270-300 mm trim window to fine-tune beam let-off travel while the air cushion prevents end-cover shock during high-speed reed beat-up.
Transfers heavy cardboard cartons between roller conveyors, leveraging 402 N of push force to overcome friction and the tunable cushion to soften the 300 mm full-stroke impact.
Oscillates a yarn guide across a 300 mm winding drum, where the adjustable stroke stop sets the exact package width and the cushion slows the rapid reversals without bouncing.
If 402 N is excessive for your payload, step down to the 25 mm bore (245 N push @0.5 MPa); if you need more thrust, step up to the 40 mm bore (628 N push @0.5 MPa). Choose this MBLCJ over the MBLJ when your 300 mm move carries enough mass to require tuned end-deceleration rather than a fixed bumper. Choose the MBLC if your travel length is fixed and you do not need the 270-300 mm rear trim window.
Remember that the rear adjuster is a travel stop, and the air cushion only decelerates; neither mechanism locks or holds the load vertically, so external mechanical locking is required for position holding. Mounting is restricted to Basic, FA (flange), or LB (foot) brackets—SDB pivot and back-cover options are not available on this series. At a 300 mm stroke, the 12 mm rod is highly susceptible to side-load bending; always guide the load externally to prevent cylinder destruction. Replacement requires matching the 32 mm bore, 300 mm stroke, 30 mm adjust code, G1/8 PT port, and no magnet.
Quick checklist
This 32 mm bore cylinder uses a G1/8 port and a Ø12 mm rod. At 0.5 MPa it provides 402 N push and 346 N pull force. At 0.7 MPa the push force is 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa.
The 30 mm adjustable stroke is a rear mechanical stopper that trims your usable travel window down to 270 mm from the 300 mm nominal length. The adjustable air cushion is a separate screw-tunable valve that controls deceleration at the stroke ends. Neither holds the load in place; the stopper sets the travel end, and the cushion only slows the piston.
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