
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X50-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 50mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 10–50mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X50-40S is a compact double-acting mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. It delivers 402 N of push force and 346 N of pull force at 0.5 MPa. The 40 mm adjustment code lets you trim the rear travel stopper, creating a usable working window of 10 to 50 mm for this 50 mm stroke. This screw-tunable end-of-stroke cushioning protects the end covers and allows faster, heavier moves than a fixed rubber bumper.
Unlike a standard MBLJ, this model uses an adjustable air cushion to decelerate loads smoothly rather than relying on a fixed bumper. The riveted rolling-packed aluminum barrel and grease-retaining piston seal ensure stable operation, while the Ø12 mm carbon-steel rod features 20 µm hard-chrome plating for wear resistance. The built-in magnet (-S) enables precise position detection, and the overall length is calculated as A + 2 x stroke + adjust. Note that the rear stopper sets the travel end; it does not lock or hold the load in place.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X50-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 50 mm |
| Adjustable window | 10–50 mm (trim 40 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. |
| ×50 | Nominal stroke length in mm. |
| -40 | 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).
Governs the plunge depth of a spindle on a printed circuit board routing machine, using the 10-50 mm adjustable window to dial in exact cutting depth while the air cushion prevents snap-back damage at stroke ends.
Applies precise 402 N downward force to press plastic caps onto beverage bottles, utilizing the tunable deceleration to avoid crushing the caps when reaching the 50 mm stroke end.
Regulates yarn tension on a weaving loom by adjusting the rear stopper to control the take-up travel, with the cushion absorbing the rapid reversals common in high-speed fabric production.
If you need less force, step down to the 25 mm bore (245 N push @0.5 MPa); if your payload is heavier, step up to the 40 mm bore (628 N push @0.5 MPa). Choose this MBLCJ over the MBLJ when your application requires tunable deceleration rather than a fixed bumper, or over the MBLC when you need that rear travel stopper to fine-tune the end position. Remember, neither the cushion nor the adjuster acts as a lock; you must use external guide mechanisms to manage side loads, as the 12 mm rod can bend under lateral stress. Mounting is limited to Basic, FA, or LB; there is no SDB or back-cover option. For a drop-in replacement, match the 32 mm bore, 50 mm stroke, 40 mm adjust code, G1/8 PT port, and the -S magnet.
Quick checklist
At 0.5 MPa, the push force is 402 N and the pull force is 346 N. At 0.7 MPa, the push force is 563 N. The maximum theoretical force is 82 kgf at the 1.0 MPa operating pressure limit.
The -S suffix indicates a built-in magnet compatible with AirTAC CMSG (reed), DMSG, and EMSG (electronic) sensor switches for position detection. The 40 mm adjustable stroke is a rear travel stopper that allows you to trim the usable window down to 10 mm; it sets the end position but does not lock the load.
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