
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X500-100 is a genuine double-acting aluminum-barrel mini cylinder with a Ø40mm bore, a 500mm nominal stroke and a rear adjustable-stroke stopper — trim up to 100mm for a usable window of 400–500mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ40X500-100 is a double-acting, single-rod aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 628 N push and 528 N pull force at 0.5 MPa. The 100 mm rear trimmer sets a usable travel window of 400 to 500 mm, letting you fine-tune the end position without mechanical shims.
This 40 mm bore uses a G1/4 port, a Ø16 carbon-steel rod with 20 µm hard-chrome plating, and an M12x1.25 rod-end thread. Because this lacks the -S magnet code, it cannot host a CMSG, DMSG, or EMSG position sensor. The riveted rolling-packed barrel and grease-retaining piston seal maintain consistent friction, while the twin screw-tunable cushions absorb kinetic energy at high speeds to protect the end covers.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ40X500-100 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø40 mm |
| Nominal stroke | 500 mm |
| Adjustable window | 400–500 mm (trim 100 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×500 | Nominal stroke length in mm. |
| -100 | 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).
Pushes cardboard blanks into a folding station with 628 N of force, using the 100 mm rear stroke adjustment to perfectly time the paper feed length without swapping cylinders.
Decelerates a heavy yarn carrier carriage over 500 mm of travel, using the adjustable air cushion to prevent sudden snaps that would break delicate weaving threads.
Positions a router carriage along a 400-500 mm window, relying on the 20 µm hard-chrome plated rod to resist wear in high-dust woodworking environments.
Step down to the 32 mm bore (402 N push @0.5 MPa) if your load is lighter, or step up to the 50 mm bore (981 N push @0.5 MPa) for heavier masses. Choose this MBLCJ over the MBLJ when you need tunable end-deceleration instead of a fixed rubber bumper, or over the MBLC when a project requires trimming the stroke within the 400-500 mm window.
Remember the rear adjuster is a travel stop, not a load lock; the cushion only decelerates, so use an external locking mechanism to hold position. Mounting is limited to Basic, FA, or LB; no SDB pivot or back-cover code applies. For a drop-in replacement, match the 40 mm bore, 500 mm stroke, 100 mm adjust code, G1/4 port, PT thread, and confirm no magnet is required. At this 500 mm stroke, the small 16 mm rod is highly susceptible to side-load bending—an external guide is mandatory to prevent jamming.
Quick checklist
At 0.5 MPa, the 40 mm bore provides 628 N push and 528 N pull force. At 0.7 MPa, the push force is 880 N. The maximum theoretical force is 128 kgf at 1.0 MPa.
Because this SKU lacks the -S code, it has no built-in magnet and cannot accept CMSG, DMSG, or EMSG sensors. The 100 mm rear adjuster is a travel stop that sets the 400-500 mm end position, and the air cushion only decelerates the piston; neither mechanism locks or holds the load.
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