
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X75-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 75mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 35–75mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X75-40S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and tunable air cushions at both ends. You can trim up to 40 mm of travel at the rear, yielding a usable stroke window of 35 to 75 mm. Driven by a Ø12 mm carbon-steel rod with 20 µm hard-chrome plating, it delivers 402 N of push force at 0.5 MPa. This 75 mm nominal stroke is ideal for intermediate positioning on small assembly machines.
The adjustable air cushions allow screw-tuning of end-of-stroke deceleration, absorbing kinetic energy to prevent end-cover damage during fast or heavy moves. The riveted rolling-packed barrel and heterogeneous two-way grease-retaining piston seal keep friction low and lubrication intact. Because this SKU includes the -S magnet, it supports AirTAC CMSG reed and DMSG or EMSG solid-state switches for precise rod-position detection.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X75-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Adjustable window | 35–75 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. |
| ×75 | 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 PCB routing machine, using the 35-75 mm window to dial in exact cutting height while the cushion softens rapid retraction.
Drives a capping head onto plastic bottles, using the 402 N push force to seat caps reliably while the air cushion prevents slamming the threaded spindles.
Applies labels to curved cosmetic jars, where the DMSG solid-state sensor flags the exact tamp position and the rear stopper compensates for varying container heights.
If 402 N push at 0.5 MPa is too much, step down to the 25 mm bore (245 N push); if you need more thrust, step up to the 40 mm bore (628 N push). Choose this MBLCJ over the MBLJ when your application speed requires tunable deceleration instead of a fixed rubber bumper, or over the MBLC when you need that rear travel stopper to trim the end position. The rear adjuster sets the travel end and the cushion only decelerates; neither holds the load, so use an external lock for position holding. Mounting is limited to Basic, FA flange, or LB foot (no SDB or back-cover options). For an exact replacement, match the 32 mm bore, 75 mm stroke, 40 mm adjust code, G1/8 port, PT thread, and the -S magnet.
Quick checklist
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 346 N of pull force. At 0.7 MPa, push force reaches 563 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
The 40 mm adjustable stroke is a rear mechanical stopper that trims your usable travel window down to 35-75 mm. The adjustable air cushion is a separate screw valve that tunes end-of-stroke deceleration. Neither acts as a lock to hold a load in place.
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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