
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X175-40S is a genuine double-acting aluminum-barrel mini cylinder with a Ø32mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 40mm for a usable window of 135–175mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ32X175-40S is a compact double-acting mini cylinder featuring a single Ø12 mm rod and a riveted aluminum barrel. It delivers 402 N of push force at 0.5 MPa and includes a built-in magnet for position detection. The rear stroke adjuster allows you to trim up to 40 mm of travel, creating a usable stroke window of 135 to 175 mm to fine-tune end positions.
Unlike the fixed rubber bumper found on the base MBLJ, this model features a screw-tunable adjustable air cushion at both ends to decelerate heavier or faster loads smoothly, protecting the end covers. The riveted barrel and heterogeneous two-way grease-retaining piston seal maintain lubrication over high-speed cycles up to 800 mm/s. The 20 µm hard-chrome plating on the carbon-steel rod resists corrosion and wear in dynamic environments.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ32X175-40S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø32 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 135–175 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. |
| ×175 | 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).
Drives the plunge depth on a PCB depaneling router. The 135-175 mm window sets the exact cutting depth, while the dual air cushions absorb the rapid 800 mm/s retraction impact, protecting the spindle bearings.
Positions a yarn guide bar on a weaving loom. The 402 N push force handles the guide mass, and the adjustable rear stopper allows precise 135-175 mm positioning without reprogramming the machine controller.
Lowers a capping head onto plastic bottles. The DMSG solid-state sensor detects the exact cap seating, while the tunable air cushion prevents the 402 N thrust from cracking the plastic caps at high speed.
If you need less force, stepping down to the 25 mm bore yields 245 N of push at 0.5 MPa, whereas stepping up to the 40 mm bore provides 628 N. Choose the MBLCJ over the MBLJ when your moving mass demands tunable end-of-stroke deceleration rather than a fixed bumper, or over the MBLC when you need that cushioning combined with a rear travel stopper. Remember, the rear adjuster is a travel stop, not a lock; the air cushion only decelerates and neither holds position, so an external guide or lock is required for load holding.
This SKU uses a G1/8 port with a default PT (tapered) thread, an M10x1.25 rod-end thread, and includes the -S magnet for CMSG reed or DMSG/EMSG electronic sensors. Mounting is limited to Basic, FA flange, or LB foot options; there is no SDB pivot or back-cover option. As an exact replacement, match the 32 mm bore, 175 mm stroke, 40 mm adjust code, PT thread, and S magnet. Given the 175 mm stroke, the 12 mm rod is susceptible to bending under lateral loads, so always use an external guide to prevent side-load damage.
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 increases to 563 N. The maximum theoretical force is 82 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
The adjustable stroke (trimming up to 40 mm) is a mechanical travel stopper that sets the rod's end position within the 135-175 mm window. The adjustable air cushion is a screw-tunable valve that controls end-of-stroke deceleration speed. The stopper sets the position, the cushion controls the speed, and neither acts as a lock to hold the load.
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Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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